a plane accelerates from 4 m/s/s for 28.7 s until it finally lifts on the ground. Assuming the plane started from the rest, what was the planes displacement before takeoff?
Answers
There were 1647 before liftoff. 38 m moving planes.
A Straight Line Motion is defined as?An object is considered to be in motion if its location throughout time changes in relation to its surroundings. It is the gradual change in an object's location. The only kind of motion that exists is linear motion.
Which three motion equations are there?The three equations are as follows: S = ut + 12at2, v = u + at, v2 = u + 2as.
The airplane's initial speed is U=0 m/s.
The plane accelerates at a 4 m/s rate.
with a time stamp of 28.7 seconds.
Distance traveled using the formula S=ut+a
⇒ S=0(28.7)+0.5(4) (4)
=1647.38 ~ 1647m
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Related Questions
Which of the following is true for an object that sinks?
OA. The force of gravity is stronger than the buoyant force.
B. The object is made of stone or metal, which always sinks.
C. The buoyant force is stronger than the force of gravity.
D. The mass of the object is too great for the object to float.
Answers
A
for an object to sink the weight of the object should be greter than the buoyant force
If you could see both the Sun and the other stars during the day, this is what the sky would look like looking south at noon on May 24, 2021 for an observer in the northern hemisphere. The Sun would be located in which zodiac constellation 60 days after this date? Gemini Aries Cancer Leo Taurus
Answers
Based on the dates provided, May 24, 2021, and 60 days after that, the Sun would be located in the zodiac constellation of Cancer.
In the Northern Hemisphere, the Sun's apparent path across the sky follows the ecliptic, which passes through the zodiac constellations. The Sun moves eastward along the ecliptic, completing a full cycle through all the zodiac constellations in approximately one year. Each zodiac constellation represents a specific period of time when the Sun appears to be in that constellation. On May 24, the Sun is in the constellation Gemini. Since there are 12 zodiac constellations, and each one roughly spans 30 degrees of the ecliptic, 60 days after May 24, the Sun would have moved approximately two zodiac constellations ahead. Therefore, 60 days after May 24, the Sun would be in the zodiac constellation of Cancer.
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On May 24th, the Sun is in the constellation Taurus. Approximately 60 days later, given that the Sun moves along the ecliptic path at about one degree per day, the Sun would be located in the constellation Leo.
Explanation:The asked question involves knowing the position of the Sun in relation to the zodiac constellations based on Earth's orbit. When viewed from Earth, the Sun's apparent journey through the sky follows a certain path known as the ecliptic. This path crosses the twelve constellations of the celestial sphere recognized as the zodiac. On May 24, the Sun resides in the constellation of Taurus. Moving forward along the ecliptic about one degree per day, in 60 days (approximately two months later), the Sun would be in the zodiac constellation of Leo.
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1. What are examples of muscle endurance activities/exercises? 2. Which sports require the most muscle endurance? 3. How many sit ups did you do for the Fitnessgram test last year? 4. Pick either arm strength, stomach strength, or leg strength. Explain why this group is important to keep strong.
Answers
Answer:
hello i need points i need to pass 8th grade
Explanation:
Answer:1.examples are Plank,Body weight squats,Walking lunges,Pushups 2. Weight-Lifting require the most muscle endurance.3. u shud do it urself .4.u shud pick.
Explanation: for the question Explain why this group is important to keep strong.
Benefits of Muscular Strength and Endurance
Muscular strength and endurance are important for many reasons: Increase your ability to do activities like opening doors, lifting boxes or chopping wood without getting tired. Reduce the risk of injury. Help you keep a healthy body weight.
which electromagnetic waves help doctors detect broken bones inside your body?
Answers
X-rays help doctors detect broken bones inside your body.
X-rays help doctors detect broken bones inside your body by using electromagnetic waves with high energy and short wavelengths, capable of penetrating the body and producing images of the bones.
X-rays are able to pass through soft tissues, but they are absorbed by denser materials like bones, creating a contrast in the image.
This allows doctors to identify fractures, bone misalignments, and other skeletal abnormalities.
X-ray technology has been widely used in medical imaging for decades due to its ability to provide quick and relatively low-cost assessments of bone injuries, making it a valuable tool in diagnosing and managing fractures.
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What i the denity of a cube that ha a ma of 12. 6 and a meaured ide length of 4. 1 cm?
Answers
The density of a cube that has a mass of 12. 6 and a measured length of 4.1 cm is 0.18 kg/cm³
Density=mass/volume
mass=12.6
volume=68.9
density=12.6/68.9
density=0.18 kg/cm³
Density is defined as a material substance's mass per unit volume. Density is described by the equation d = M/V, where d stands for density, M for mass, and V for volume. Grams per cubic centimeter is the unit of measurement for density. For instance, compared to Earth's density of 5.51 grams, water has a density of 1 grams per cubic centimeter . Another way to express density is in kilograms per cubic meter (in meter-kilogram-second or SI units), It is easy to determine the relationship between mass and volume using density. For instance, the formula for determining a body's mass is M = Vd, while the formula for determining a body's volume is V = M/d.
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7 The diagram shows a beam lying on the ground. End Q is lifted from the ground by the force F.
End P of the beam remains on the ground.
The length of the beam is 3.0m and its weight is 600 N.
The centre of mass of the beam at G is 1.0 m from end P.
What is the size of the force F when it just raises end Q from the ground?
A 200 N
B 300 N
C 400 N
D 600N
With solution.
Answers
When the beam just raises end Q from the ground, the magnitude of force F will be 300 N.
What is center of mass?The unique location where the weighted relative position of the distributed mass adds to zero at any given time is known as the center of mass in physics.
At equilibrium, net torque = 0
Take forces acting anti-clockwise direction as positive:
so, - 600 N × (1.0 m) + F ×(2.0 m) = 0
F = 600 N × (1.0m ÷ 2.0 m)
F = 300 N.
Hence, when it just raises end Q from the ground, the magnitude of force F will be 300 N.
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pls answer this question is due today
Answers
=============================================
Explanation:
To compute the speed, we divide the distance traveled over the time duration.
For instance, if a car goes 100 km in 5 hours, then its speed is 100/5 = 20 km per hour.
-----------------
For section A, the car travels 30 km over the course of 2 hours (since 11:00-9:00 = 2:00)
speed = distance/time = (30 km)/(2 hrs) = 15 km/hr
-----------------
We don't need to do any computations for section B. It's a flat horizontal line, so the speed is zero. There's no change in distance, so the car is stationary for this 1 hour period.
You could say speed = distance/time = 0/1 = 0 km/hr if you wanted.
-----------------
For section C, its change in distance is 60-30 = 30 km and the change in time is 0.5 hour (because it spans from 12:00 to 12:30)
So, speed = distance/time = (30 km)/(0.5 hr) = 60 km/hr
The steeper slope of section C, compared to section A, means the car is going faster.
-----------------
Section D spans from 12:30 to 14:00. This is a time period of 14:00-12:30 = 1:30 = 1.5 hours. The change in distance is 60 km
(60 km)/(1.5 hrs) = 40 km/hr
The speed of the car during section D is 40 km per hour.
Side note: if you were talking about velocities instead of speeds, then section D would have a negative velocity of -40 km/hr to indicate the car is going the opposite direction (compared to sections A and C). However, speed is always nonnegative.
what do you think will happen to the people in the airplane if their location is unknown?
Answers
Question:
What do you think will happen to the people in the airplane if their location is unknown?
My opinion:
I mean what are the circumstances? Is it just a rogue pilot that takes a random plane with all the passengers Hostage or is It bad whether an they lose connection to the airport? I Mean either way, If I was on a plane being held hostage, or the plane crashing, I Would be a in a panic type state of mind. I Would be worried about what will happen when the plane crashes, I would worry about my friends or family that is aboard the plane with me, I Would be scared for my life because I Don't know if i would make it out alive.
Also:
How would they know their location is unknown wouldn't the Pilot be the only one to know exactly where there with their navigating system, But then again there was this time I headed to Florida an They had mini tv's on the seats of each chair, where you could: Watch movies, listen to music, an Also see exactly where you are in the world. It was really amazing actually.
QUESTION 17
Which statement best describes the difference between strong nuclear forces and weak nuclear forces? (2 points)
O Weak nuclear forces are involved when certain types of atoms break down. Strong nuclear forces are responsible for
holding atoms' nucleus together.
O Weak nuclear forces hold bonds between atoms together. Strong nuclear forces hold together the nucleus of an
atom,
O Strong nuclear bonds prevent atoms from falling apart. Weak nuclear bonds prevent compounds from falling apart.
O Strong nuclear forces are involved in breaking electrons from their shells. Weak nuclear forces hold protons in the
nucleus.
Answers
Answer: Weak nuclear forces are involved when certain types of atoms break down. Strong nuclear forces are responsible for holding atoms' nucleus together.
A ski gondola is connected to the top of a hill by a steel cable of length 660 m and diameter 1.5 cm. As the gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along the cable. It is observed that it took 19 s for the pulse to travel the length of the cable and then return.
What is speed of the pulse? m/s
What is the tension in the cable? N
Answers
The tension in the cable is 35400 N. To find the speed of the pulse, we can use the formula: speed = distance/time.
The distance traveled by the pulse is twice the length of the cable, since it travels the length of the cable and then returns. Therefore, the distance traveled is:
2 x 660 m = 1320 m
The time taken is given as 19 s. So, we can calculate the speed as:
speed = 1320 m/19 s = 69.47 m/s
To find the tension in the cable, we can use the formula:
tension = (mass x gravity) + (stress x area)
Since we do not know the mass of the cable, we can assume it to be negligible. The stress in the cable can be found using the formula:
stress = force/area
where force is the force applied to the cable, and area is the cross-sectional area of the cable. We can assume that the force applied is equal to the tension in the cable. The area can be found using the formula:
area = π x (diameter/2)^2
Substituting the values, we get:
area = π x (0.015/2)^2 = 1.77 x 10^-4 m^2
Now, we can find the stress as:
stress = tension/area
Substituting the value of stress as 2 x 10^11 N/m^2 (for steel cables), we can calculate the tension as:
tension = stress x area = 2 x 10^11 N/m^2 x 1.77 x 10^-4 m^2 = 35400 N
Therefore, the tension in the cable is 35400 N.
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Part of a bird's digestive tract, called a gizzard, is able to break up large chunks of food at an extremely fast rate. It is difficult for
scientists to watch a gizzard functioning in a live bird. How would building a model of a gizzard help a scientist?
A. to analyze how a gizzard works
В.to study bird behavior
C.to determine what type of tissues a real gizzard is made of
D.to watch a gizzard functioning in life
Answers
GoodLuck !
Answer:A:
To analyze how a gizzard works.
Explanation:
a lion is running at constant speed toward a gazelle that is standing still, as shown in the top figure above. after several seconds, the gazelle notices the lion and accelerates directly toward him, hoping to pass the lion and force him to reverse direction. as the gazelle accelerates toward and past the lion, the lion changes direction and accelerates in pursuit of the gazelle. the lion and the gazelle eventually each reach constant but different speeds. which of the following sets of graphs shows a reasonable representation of the velocities of the lion and the gazelle as functions of time?
Answers
The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.
Velocity is the rate of change of displacement over time.
It has SI units as m/s.The total amount of movement of an object per unit time is also called velocity. It depends on both the size and direction of the moving object.Velocity can also be called as speed when distance is taken into consideration instead of displacement.As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.
So option A is correct.
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help needed fast, I'm not good at physics, look at picture below ( I posted another page aswell, take a look on my profile) part #2
Answers
Answer:
I’d say the air outside the hemisphere is more free than from the inside of the hemisphere.
Explanation:
hope this help!
Which of these consumers is an herbivore? *
1. lion
2. deer
3. spider
4. snake
Answers
Answer:
2. deer
Explanation:
The lion, spider, and snake eat meat or to an extent.
Deer don't eat meat
Answer:
deer :)
Explanation:
The rest are basically carnivores
a 5 kg bucket of water is raised from a well by a rope. if the upward acceleration of the bucket is 2.6 m/s2, find the force exerted by the rope on the bucket of water.
Answers
According to the given statement The force exerted by the rope on the bucket of water is 62 N.
What is a acceleration explain?Acceleration is the rate at which speed of velocity vary over time. A point or object going straight forward is accelerated when it accelerates or decelerates. Even though the speed stays constant, motion on such a circle accelerates because the vector is always shifting. The rate with which of displacement is known as velocity. The speed of change in velocity is known as acceleration.
Briefing:we know that
m = 5 kg
a = 2.6 m/s²
g = 9.8 m/s
T - mg = ma
T = mg + ma
T = (5* 9.8) + (5 * 2.6 )
T = 49 + 13
T = 62 N
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If the current carried by a conductor is doubled, how are each of the following affected?
(a) The charge carrier density- ____ (b) The current density____ (c) The electron drift velocity ____
(d) The average time interval between collision____ is halved. is quartered. is unchanged
doubles
triples
quadruples.
Answers
(a) The charge carrier density doubles,(b) The current density doubles, (c) The electron drift velocity doubles, (d) The average time interval between collision halved.
I = nq\(v_{d}\)A
where n is the charge/volume
I is the current.
q is the charge per carrier
\(v_{d}\) is the drift velocity of the charge carriers
A is the cross-sectional area of current flow
Here,
a) The charge carrier density (n) doubles if I doubles.
b) The charge carrier density (J = I/A is the current density). If I doubles, J doubles.
c) The electron drift velocity (\(v_{d}\)) doubles if I doubles.
d) The average time interval between collisions depends inversely on \(v_{d}\). If I doubles, \(v_{d}\) doubles, so the average time between collisions is halved.
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A ball with an initial velocity of 2 m/s rolls for a period of 3 seconds. If the ball is uniformly accelerating at a rate of 3 m/s2, what will be the ball’s final velocity?
Answers
Answer: 11 m/s
vinitial=2 m/s
time=3 s
acceleration = 3 m/s^2
vfinal = ?
The key here is that it is a constant acceleration, so we can use the constant acceleration equations. The easiest one to use would be:
vfinal=vinitial + a*t
We need vfinal, so algebraically we are ready to put in numbers into the equation:
vfinal=vinitial + a*t = 2 m/s + (3 m/s^2)*(3 s ) = 11 m/s is the final velocity
The ball's final velocity is 11 m/s
From one of equations of kinematics for linear motion
We have that
v = u + at
Where v is the final velocity
u is the initial velocity
a is the acceleration
and t is the time
From the given information in the question
u = 2 m/s
t = 3 secs
a = 3 m/s²
Putting these parameters into the above formula
v = u + at
We get
v = 2 + (3×3)
v = 2 + 9
v = 11 m/s
Hence, the ball's final velocity is 11 m/s
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HELP THIS IS URGENT! IT WOULD BE GREATLY APPRECIATED IF YOU ANSWER ALL BUT ONE IS FINE!
1. The diagram shows 2 identical charged particles. How does the potential energy and the force of repulsion change as the charges are brought closer together?
2. For the positions labeled on the image, list in order from highest to lowest the potential energy of the roller coaster. How is the kinetic energy of the roller coaster related to these values?
3. Consider the motion and size of the two vehicles headed for each other on the road. Compare the kinetic energy of the vehicles.
Answers
Answer:
1 both increase
2. highest to lowest A C D B
3 the kinetic energy is higher in the larger vehicle as they have the same speed
Explanation:
a ball is thrown vertically upward with a speed of 30.0 m/s. how long does it take to reach its highest point?
Answers
It takes the ball 3.06 seconds to reach its highest point
To find how long does it take to reach its highest point
The time it takes for a ball to reach its highest point is given by the equation:
t = v / g
where
t is the time in secondsv is the initial velocity in meters per secondg is the acceleration due to gravity, which is approximately \(9.8 m/s^2\)In this case, the initial velocity is 30.0 m/s and the acceleration due to gravity is \(9.8 m/s^2\). Therefore, the time it takes for the ball to reach its highest point is:
\(t = 30.0 m/s / 9.8 m/s^2 = 3.06 s\)
Therefore, it takes the ball 3.06 seconds to reach its highest point.
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The number of waves that pass through a point in a given period of time is known as the __________.
Answers
The frequency is the number of waves that traverse a spot in a specific amount of time.
Explanation:-the quantity of times something happens in a certain amount of time. -the number of waves passing a point per second is the frequency of a wave. - The hertz is a measure of frequency ( Hz ). One event occurs every second in a hertz. Shorter wavelengths will equate to lower frequencies if the speed is remained constant.
The frequency of a wave determines its properties. The quantity of waves that pass through a specific spot in a unit of time is known as frequency. Hertz is the S.I. unit for frequency (Hz).
For instance, if a wave travels through a spot in 0.5 seconds, its frequency will be 1 0.5 = 2 Hz.
As a result, two waves will go through that location in a second.
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Which of the following groups have one valence electron and are very reactive
A-column 1 alkali metals
B-Column 2 alkaline earth metals
C-column 17 halogens
D-column 18 noble gases
Answers
Before answering the questions below, draw two separate free-body diagrams of ring C and then ring B. Be sure the FBDs are neat a properly labeled. You will turn them in with your written work. Part A Deturmine the tension developed in cable CB if cylindar E weighs 24lb and θ=15∘. If cylinder E weighs 24lb and θ=15∘, determine the weight of cylinder F. Express your answer with the appropriate units.
Answers
Tension in cable CB = 6.24lb Weight of cylinder F = 0
Firstly, we will draw the free body diagram for ring C. Ring C will have three forces acting on it. They are the tension in the cable CB, weight of the cylinder E and the normal force of the cylinder E. Let’s assume the tension in the cable CB is T. Then the free body diagram for ring C can be drawn as shown below: Ring B will have four forces acting on it. They are the tension in the cable BA, tension in the cable BD, weight of the cylinder E and weight of the cylinder F. Let’s assume the tension in cable BA is T1 and the tension in cable BD is T2. Then the free body diagram for ring B can be drawn as shown below:
To find the tension in cable CB, we can consider the forces acting on the cylinder E. The weight of the cylinder E can be resolved into two components. They are the component acting parallel to the plane and the component acting perpendicular to the plane. The component acting parallel to the plane will cause tension in the cable CB and can be calculated as shown below:
component parallel to the plane=24sin 15°= 6.24lb T=component parallel to the plane=6.24lb Therefore the tension in cable CB is 6.24lb. To find the weight of cylinder F, we can consider the forces acting on ring B. The sum of the vertical components of the forces acting on ring B will be equal to the weight of the cylinder E and cylinder F. Sum of vertical components of forces acting on ring B= T1+T2+ weight of cylinder E+ weight of cylinder F= (T1+T2) + 48=48 Therefore T1+T2=0 Weight of cylinder F = 0 Therefore the weight of cylinder F is zero.
Tension in cable CB = 6.24lb Weight of cylinder F = 0
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A plane is flying horizontally with speed 171 m/s at a height 6520 m above the ground, when a package is dropped from the plane. The acceleration of gravity is 9.8 m/s 2 . Neglecting air resistance, when the package hits the ground, the plane will be 1. directly above the package. 2. ahead of the package. 3. behind the package.
Answers
Answer:
2. Ahead of the package
Explanation:
The plane is going straight without stopping while the package is going straight down.
Question 2 (2 points)
Which of the following is a true statement about mass and weight? (2 points)
a
Mass is a measure of how much matter an object has, while weight is a measure of
how much space the object takes up.
Mass will not change based on location, while weight will change based on
gravitational pull
b
Mass is a measure of a gravitational pull on an object, while weight is a measure of
how much matter is an object has,
Mass is proportional to the force of gravity, while weight is proportional to the
amount of mass,
d
Answers
Answer:
B. Mass will not change based on location, while weight will change based on gravitational pull.
Answer:
B
Explanation:
took the test
which of the four treatments was the control for the experiment?
Answers
The experiment's control consisted of the four treatments. The wild kind of mouse
What is meant by experiment?A process used to confirm or deny a theory, as well as assess the effectiveness or possibility of something that has never been performed before, is called an experiment. By showing what happens when a particular element is modified, experiments shed light on cause-and-effect relationships. "A test under controlled conditions that is made to show a known truth, to assess the validity of a hypothesis, or to determine the efficacy of something hitherto untried," is how the American Heritage Dictionary of the English Language defines an experiment. A issue is recognized, relevant data is obtained, a hypothesis or question is created using the data, and the hypothesis is tested through an experiment to confirm or refute its viability.To learn more about experiment, refer to:
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Tech A states that the PCM has the ability to learn from its actions and to use that information to make better decisions in
the future. Tech B states that it can also perform basic self-diagnostics on virtually all of the components in the system. Who
is correct?
Select one:
a. Tech A
b. Tech B
c. Both A and B
d. Neither A nor B
Answers
The statements made by the two technicians with respect to a process control module (PCM) are both correct: c. Both A and B.
What is PCM?PCM is an abbreviattion for process control module and it can be defined as a system that comprises a group of sensors, actuators, and other artificially intelligent processing equipment, which is operated as a single entity in an industry while providing its users (technicians) a desired result or response.
This ultimately implies that, a process control module (PCM) is designed and developed to do the folloing:
Perform basic self-diagnostics on the components in the system.Learn from its actions.Make better decisions in the future based on prior information.In conclusion, we can deduce that the statements made by the two technicians with respect to a process control module (PCM) are both correct.
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How is the way that allows us to listen to an AM/FM Radio in our car is different from the wave that allows us to listen to music at a concert? explain by describing what types of waves are and how they differ
Answers
Answer:
Well AM/Fm is digitally using soundwaves for cars through signal, which we cant hear without one (radio). Concerts are in real life and use wavelegnths that we hear because it bounces off overytihing.
Explanation:
a man launches his boat from pt. a on a bank of a straight river, 3km wide, and wants to reach pt. b, 8km downstream on the opposite bank as quickly as possible. if he can row 6 km/hr and run 8 km/hr, where should he land to reach b as soon as possible?
Answers
Let x = the distance between C and D, or 0x1.
We wish to cut down on the amount of time, t, that is required to row to point D and then run the remaining distance to point B.
As a right triangle, ACD. Let s equal the distance between A and D.
s=√(x2+42)
The distance from point D to point B is 1-x.
time equals distance/rate
t = √(x2+42)/6 + (1-x)/8
Take dt/dx, set it to zero, then solve for x to reduce t.
dt/dx is equal to x/(6x2+42) - 1/8.
x/(6√(x2+42)) = 1/8
(6/8)√(x2+42)=x
both sides are square.
(9/16)(x2+42)=x2
(9/16)x2+9 = x2
(7/16)x2=9
x = ±√((9)(16)/7) = ±12/√7 Neither value falls within the range [0, 1].
Verify the endpoints x=0 and x=1.
t(1) = √17/6 - 1/8 = 0.562
t(0) = 4/6+1/8 = 0.792
Therefore, x=1 reduces the time. The ideal course of action is to row directly to point B.
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Write down any four points that should be considered during household wiring
Answers
2. Person attempting the task has some general knowledge about wiring
3. Not All Cable is Color-Coded
Cable-sheath color coding started in 2001 and is still voluntary. If you have older wiring, don’t assume it complies with the current color coding. However, most manufacturers now follow the standard color code.
4. Stranded wire is more flexible than solid. If you’re pulling wire through conduit, stranded wire makes it easier to get around corners and bends in the conduit. However, if the situation requires pushing wires through conduit, you’ll want to use solid wire.
Answer:
USE RUBBER CLOVES
USE A PLIER
USE CONDUCTIVE WIRES
SWITHC OFF THE MAIN SWITCH WHILE WIRRING
Explanation:
physics physics physics physics
Answers
Physics is the branch of science that deals with the structure of matter and how the fundamental constituents of the universe interact. It studies objects ranging from the very small using quantum mechanics to the entire universe using general relativity.
Answer:
please ask this question separately
Explanation: