10. ABC.Per=1200 NNet Force:Pit=600 NEngen-SONFrid=20 NPry=800 NPrax=800 NF50NWhich situation above would best describe free fall velocity?Which situation above would best describe a crane lifting an object?If situation C had a Fapp of 40N to the right, the net force on the object would beIf situation Chad Fapp of 20N to the right, the forces would be (balanced, unbalanced) and thehorizontal velocity would be (constant, + accelerating, - accelerating). Circle the correct terms

The heat loss from the object in 13 minutes is \(Q = -1.503684 * 10^{-3} Joules\)

Heat loss can be calculated using this formula:

\(\frac{Q}{t} = oeA(T^{4} _{2} - T^{4} _{1})\\\)

It can be found that:

Q = heat loss in joules

t = time in seconds, 13 minutes = 780seconds

σ = (5.67 x 10⁻8J/s . m² . K⁴)

e = emissivity, 1

A = surface area of 1m²

T₂ = temperature of a room,  296 K

T₁ = temperature of an object, 330 K

Find \(Q\), where \(Q\) = \(\frac{Q}{t} = oeA(T^{4} _{2} - T^{4} _{1})\\\) = \(Q = oeA(T^{4} _{2} - T^{4} _{1}) t\\\)

\(Q = (5.67 x 10^{-8} J/s . m^{2} . K^{4} ) (1) (1) (296 K^{4} - 330 K^{4} ) (780)\\\)

\(Q = -0.001503684J\)

\(Q = -1.503684 * 10^{-3} Joules\)

learn more on heat loss here: https://brainly.com/question/14702484

#SPJ1

Given:

Number of time the mass oscillates in 1 second = 8 times

Let's find the frequency.

In this case, the frequency can be said to be the number of oscillations in one second.

Here, the number of oscillations in one second is 8 and frequency is measured in hertz (Hz).

Number of oscillations in one second = Frequency of vibration

Therefore, the frequency is 8 Hz.

ANSWER:

8 Hz.

Answer:

the resultant wave is the algebraic sum of all the waves reaching that particular point at a given time.

Explanation:

imagine two or three waves reaching a particular particle x at the same time. The particle will vibrate those waves and give out or transmit a resultant wave which is the algebraic sum of the incoming two waves. If both the waves have the same amplitude and phase, the resultant wave will be amplified. However if the waves have the same amplitude and equal but opposite phase then the resultant wave will be a straight line

The earthquake would occur 13 minutes before 10:05 a.m. which will be at 9.52 am.

The p-waves travel with a constant velocity of 7 km/s

The time can be calculated by using the formula

t = d / v

where

T1 =  10:05 a.m

d is the distance they take to travel from the epicenter

v is the speed of the p-waves

On average, the speed of p-waves is

v = 7 km/s

d = 5600 km (given)

Substituting the values in the formula;

t = d / v

t = 5600 ÷ 7

t = 800 seconds

Converting into minutes,

t = 800 ÷ 60

t = 13.3

≈ 13 mins

T1 -  13 mins = T2

10:05 - 13 mins = 9.52 am

It means the earthquake occurred prior 13 minutes, that is at 9.52 am.

Therefore, the earthquake occurred at 9.52 am.

Learn more about earthquakes from the given link.

https://brainly.com/question/25843505

Answer:

A. Battery

B. Iron Core

C. Solenoid

Juan’s velocity between 0-5 seconds would be 2 m/s, the slope of the position time graph represents the velocity of the object and between the 0-5 seconds slope of the line is 2.

The total displacement covered by any object per unit of time is known as velocity. It depends on the magnitude as well as the direction of the moving object.

velocity= total displacement/Total time

As given in the problem we have to find the velocity of Juan between 0-5 seconds.

The displacement covered between 0-5 seconds is 10 meters.

the time taken to change position is 5 seconds,

the velocity of the Juan = 10/5

                                 =  2 meters/seconds

Thus, its velocity of Juan comes out to be 2 meters/second.

Learn more about Velocity from here,

brainly.com/question/18084516

#SPJ2

Answer:

Planks?

Explanation:

It's kinda resting

Answer:

weights

walking

stretching

etc.

From the question;

1) It takes 15.75 years to decrease to 1/8

2) It takes 8.36 years to decrease to 1/3

Half-life is the length of time it takes for a chemical to degrade or go through a particular process. It frequently refers to the length of time it takes for half of a radioactive substance to decay into a stable form in the context of radioactive decay.

We know that;

\(N/No = (1/2)^t/t1/2\)

No = initial amount

N = amount at time t

t = Time taken

t1/2 = half life

\(1/8 = (1/2)^t/5.252^-3 = 2^-t/5.25\)

t = 15.75 years

Again;

\(1/3 = (1/2)^t/5.25\)

ln0.33 = t/5.25ln0.5

t = ln0.33/ln0.5 * 5.25

t = 8.36 years

Learn more about half life:https://brainly.com/question/31666695

#SPJ1

Answer:

True

Explanation:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.

Answer:

the power in both cases is the same.

Explanation:

hope helps you

thanksss

Answer:

Increasing speed

Explanation:

Let's check net force

\(\\ \sf\longmapsto F_{net}=1500N-200N\)

\(\\ \sf\longmapsto F_{net}=1300N\)

So car is increasing its speed.

The motion of the car is increasing speed constantly. Thus, the correct option is C.

Motion of an object is a change in the position as compared to a place or an object which is not moving. The place or object which is not moving is called the frame of reference of the object. Motion of an object is a kind of puzzle because of every object in the universe is in motion.

The net force due to the engine is 1500N and the total drag force is 200N.

Net Force = Difference in the forces

Net Force = 1500N - 200N

Net Force = 1300N

The force due to engine is greater than 200N (total drag force). So, the car is in motion with increasing speed.

Therefore, the correct option is C.

Learn more about Motion here:

https://brainly.com/question/22810476

#SPJ2

There is more to the Earth than what we can see on the surface. In fact, if you were able to hold the Earth in your hand and slice it in half, you'd see that it has multiple layers. But of course, the interior of our world continues to hold some mysteries for us. Even as we intrepidly explore other worlds and deploy satellites into orbit, the inner recesses of our planet remains off limit from us.

However, advances in seismology have allowed us to learn a great deal about the Earth and the many layers that make it up. Each layer has its own properties, composition, and characteristics that affects many of the key processes of our planet. They are, in order from the exterior to the interior – the crust, the mantle, the outer core, and the inner core. Let's take a look at them and see what they have going on.

Like all terrestrial planets, the Earth's interior is differentiated. This means that its internal structure consists of layers, arranged like the skin of an onion. Peel back one, and you find another, distinguished from the last by its chemical and geological properties, as well as vast differences in temperature and pressure.

Explanation:

Answer:

the answer is the first letter in the alphabet

As the height from the ground was doubled the horizontal range increases.

As we increases the height from the ground, then the time ball will remain in air, means time of flight will increase which will ultimately increase the horizontal range.

To know more about  horizontal range visit : https://brainly.com/question/23827445

#SPJ1

Therefore, the charge on the ball is \(2.35 x 10^-8\)coulombs.

To determine the charge on the ball, we can use Coulomb's law, which states that the force between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.

\(F = k * (q1 * q2) / r^2\)

where:

F = force between the charges

k = Coulomb's constant \((9 x 10^9 N m^2 / C^2)\)

q1, q2 = charges on the two objects

r = distance between the objects

In this case, the ball and the pipe have the same charge, so we can let q1 = q2 = q, and the force between them is simply the weight of the ball:

F = m  g

where:

m = mass of the ball (0.75 grams = 0.00075 kg)

g = acceleration due to gravity \((9.8 m/s^2)\)

\(F = 0.00075 kg * 9.8 m/s^2 = 0.00735 N\)

We also know that the ball is 55 cm = 0.55 m away from the pipe. So we can use Coulomb's law to find the charge on the ball:

\(0.00735 N = k * (q^2) / (0.55 m)^2\)

Solving for q, we get:

\(q = \sqrt((0.00735 N * (0.55 m)^2) / k)\\q =\sqrt((0.00735 N * (0.55 m)^2) / (9 x 10^9 N m^2 / C^2))\\q = 2.35 x 10^-^8 C\)

To know more about charge visit:-

brainly.com/question/29829527

#SPJ1

If one ball is dropped at rest from a height of h = 65 m.  The acceleration of the two balls is: -9.8 m/s^2 for both balls.

Let's start by finding the time it takes for the two balls to meet. We know that the ball thrown upward starts from rest, so its initial velocity is 0 m/s. We can use the following kinematic equation:

y = v_i*t + (1/2)at^2

where y is the displacement (in this case, it is the distance between the two balls), v_i is the initial velocity, a is the acceleration, and t is the time. We can set y equal to the initial height of the dropped ball, which is h = 65 m. For the ball thrown upward, the initial position is y = 0.

For the dropped ball:

y = h = 65 m

v_i = 0 m/s

For the ball thrown upward:

y = 0

v_i = 0 m/s

Using the given information, we can solve for t:

h = (1/2)at^2

65 m = (1/2)*(-9.8 m/s^2)t^2

t = sqrt(65 m / (1/2(-9.8 m/s^2))) ≈ 3.64 s

So it takes about 3.64 seconds for the two balls to meet.

Now, we can find the acceleration of the two balls. For the dropped ball, the acceleration is simply the acceleration due to gravity, which is -9.8 m/s^2. For the ball thrown upward, the acceleration is also the acceleration due to gravity, but with a negative sign since it is moving in the opposite direction of gravity. Therefore, the acceleration of the two balls is:

a = -9.8 m/s^2 for both balls

This means that both balls experience the same acceleration due to gravity, regardless of their initial velocities.

Learn more about acceleration here:https://brainly.com/question/605631

#SPJ1

Answer:

Sound and power are related through intensity, which is the amount of power per unit area. The intensity of a sound wave is proportional to the square of its amplitude, which is a measure of how far the wave oscillates from its equilibrium position.

To solve this problem, you can use the formula for sound intensity:

I = P/A

where I is the intensity of the sound wave in watts per square meter (W/m^2), P is the power of the sound wave in watts (W), and A is the area of the eardrum in square meters (m^2).

You are given that the softest sound a human ear can hear is 0 dB, which corresponds to an intensity of 10^-12 W/m^2. You are also given that sounds above 130 dB cause pain. To find the maximum power the ear can receive before the listener feels pain, you can rearrange the formula for intensity to solve for power:

P = AI

where A is the area of the eardrum in square meters.

Substituting the given values, you get:

P = (51 x 10^-6 m^2)(10^-12 W/m^2 x 10^(130/10))

Simplifying this expression, you get:

P = 1.8 x 10^-3 W

Therefore, the most power the ear can receive before the listener feels pain is 1.8 x 10^-3 watts.

Answer:

The period of motion is 0.5 second.

Explanation:

Given;

extension of the spring, x = 3.8 cm = 0.038 m

mass of the object, m = 13 g = 0.013 kg

Determine the force constant of the spring, k;

F = kx

k = F / x

k = mg / x

k = (0.013 x 9.8) / 0.038

k = 3.353 N/m

When the object is replaced with a block of mass 20 g, the period of motion is calculated as;

\(T = 2\pi\sqrt{\frac{m}{k} } \\\\T = 2\pi\sqrt{\frac{0.02}{3.353} } \\\\T = 0.5 \ second\)

Therefore, the period of motion is 0.5 second.

Answer:

Explanation:

angular acceleration ω = 8 rad /s²

tangential acceleration a = angular acceleration x radius of circle of rotation

For a point on the end of the rod , radius of circle = L .

tangential acceleration = 8 L .

For  a point a distance L/2 from the end of the rod, radius of circle = L /2 .

tangential acceleration = 8 L/2 = 4 L  .

It is so because angular acceleration will be same for this point , only radius changes .

required ratio = 8L / 4L

= 2.

Answer:

Soap breaks up the oil into smaller drops, which can mix with the water. It works because soap is made up of molecules with two very different ends (one end of molecules are hydrophilic, so they love water; the other end of molecules is hydrophobic, so they hate water).

Answer:

The combination of the two, water and soap, form bubbles that make a compound capable of removing the oil. The soap lifts the oil and dirt and becomes suspended in the water then we rinse off the soapy water and down goes the oil with it.

Explanation:

A stone is hurled upward from a 100 meter high cliff. It is launched with a 15.0 m/s initial velocity straight up into the air. A stone takes 6.22 seconds to fall to the earth.

The velocity of something like a body or substance determines its direction of motion. Speed seems to be a scalar value in its most basic form. Velocity is essentially a vector quantity.

A matter must either stay put or advance forward at an constant pace when the first law of motion is followed, with the exception of when a force is applied. Velocity is practically constant in this law. Velocity is zero when anything is at rest.

h = 100 m

Initial velocity is u = 15 m/s

v = u + gt₁

0 = 15 m/s + (-9.8 m/s²) t₁

t₁ = 1.53 sec

h₁ = (15*1.53) + 0.5(-9.81) (1.53)²

h₁ = 11.47m

h₂ = h₁ + 100m

h₂ = 111.47 m

u = 0 m/s

111.47 = 0 +0.5 * 9.81m/s² * t²

t² = 4.77 sec

t = t₁ + t₂

= 1.53 +4.77

= 6.3 sec

= 6.22 sec.

To know more about velocity visit:

https://brainly.com/question/28738284

#SPJ4

Answer:

where u put it last time or retrace ur steps to where u last put it

Answer:

it is a i

Explanation:

i took the quiz on edge 2020

Palace word best provides a context clue to the meaning of mead-hall. So, the correct option is A.

The royal residence, as well as occasionally a place of government or worship, is referred to as a palace. The Pontifical Hill in Rome, where the Ancient romans built their palaces, is whence the word was from.

A palace should be distinguished from a fortress, which was formerly any fortified residence, as a construction. A palace is a location with a regal and imposing structure that serves as a stately home such as a president, ruler, or leader's official residence.

Many old palaces have been turned into museums that depict what life was like for the king and aristocracy at the time they were erected. The context information provided by Palace term in the aforementioned example sheds light on the definition of mead-hall.

Therefore, the correct option is A.

Learn more about Palace, here:

https://brainly.com/question/14559573

#SPJ7

Answer:

0 J

Explanation:

Work equals force times distance, but the force is zero because the crate being dragged will have zero acceleration. Force equals mass times acceleration and since acceleration is zero, force has to equal zero as well. Since the force is zero, the work required also has to be zero.

The potential energy of the skateboarder at the top of the ramp is

489.1 J.

The amount of kinetic energy change and the amount of potential energy change are equal in all physical processes that take place in closed systems. When the kinetic energy rises, the potential energy falls, and vice versa.

Potential energy is the stored energy in any object or system as a result of its position or component arrangement. However, external factors like air or height have no effect on it. The energy of a moving object or system is referred to as kinetic energy.

Potential energy = kinetic energy

Potential energy = 1/2mv²

Potential energy = 1/2 × 67×7.3

Potential energy = 489.1 J.

To know more about kinetic energy visit:

https://brainly.com/question/26472013

#SPJ1

The specific heat capacity of silver is 0.235 J/g°C.

The theory used in this question is the specific heat capacity equation, which states that the amount of energy required to raise the temperature of an object is proportional to the mass, specific heat capacity, and change in temperature.

The equation is Q = mcΔT, where Q is the amount of energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

Explanations given below

Calculate the specific heat capacity of silver by dividing the energy absorbed (197.9 J) by the mass of the silver (55.0 g) and the temperature rise (15°C).

Divide 197.9 J by 825 g°C (55.0 g * 15°C).

             (197.9 J) / (55.0 g * 15°C) = 0.235 J/g°C

The result is 0.235 J/g°C, which is the specific heat capacity of silver.

To learn more about specific heat capacity refer :

brainly.com/question/30487784

#SPJ1

Answer:

prototype - a first model of something

obsolete - out of date

Unintended Consequence - outcomes of actions that weren't predicted and intended

Feedback - reactions to something from someone like a customer

Answer:

The atomic and molecular interactions unveil the bulk properties of matter in our environment by ways of the fact that everything in the whole universe is made of either atoms, molecules or even ions

How matter is made up of atoms and molecules?

It has been proven practically everything in the whole universe is matter and everything which interact with matter is also matter. This explains to us the reasons why matter could be atoms, molecules or ions.

That being said, some substances (matter) is made up of atoms of elements, some made up of molecules or atoms and molecules and others ions or both. However, matter is anything which has mass and occupies space.

In conclusion, we can now conclude from the explanation above that the properties of matter are as a result of the interaction which exists between matter at the atomic and molecular level.

Answer:

v = 1.6 m/s

Explanation:

Given that,

Distance, d = 72 m

Time taken, t = 45 s

We need to find their average velocity. Average velocity of an object is given by total distance divided by total time taken.

\(v=\dfrac{d}{t}\\\\v=\dfrac{72\ m}{45\ s}\\\\v=1.6\ m/s\)

So, their average velocity is 1.6 m/s.