Which graph best represents the greatest amount of work

Answer:

smoking factories cars buildings

Explanation:

Volume of rectangular block is 75.4 cm^3

Density of the rectangular block is 8.02 g/cm^3

Volume is simply defined as the space occupied within the boundaries of an object in three-dimensional space.

It is also known as the capacity of the object.

Volume of rectangular block = length× breadth× height

=2.9 cm × 2.6 cm × 10.0 cm

=75.4 cm^3

Density is defined as the substance's mass per unit of volume.

Mathematically ,density is defined as mass divided by volume.

Density of the block = Mass of block / volume of block

=605.0 g / 75.4 cm^3

=8.02 g/cm^3

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Answer:

T=273+25=298 K

n= m/M = 10/ 4 = 2.5

R=0.08206 L.atm /mol/k

760mmHg = 1 atm therefore

600mmHg = X atm

760 X = 600mmHg

X = 600/760 = 0.789 atm

P = 0.789 atm

V= ?

PV= nRT

0.789 V = 2.5 × 0.08206 × 298

V= 2.5 × 0.08206 ×298 / 0.789

V= 77.48 L

I hope I helped you ^_^

Answer:

The technician will need to prepare 48 syringes for a 24 hour supply since the patient needs double the available dose.

Explanation:

brainliest plz . . .

Answer:

B

Explanation:

Answer:

B

Explanation:

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.

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Answer:

looh. If you have ever heard an echo, you'll be familiar with the basic principle behind three similar technologies: radar, sonar and lidar. An echo is the reflection of sound waves off of some distant object.

Explanation:

From Goog|e

Answer:

Sonar and Ultrasound are reflected sound wave technologies.

Explanation:

Sonar- is a technology that was developed by the U.S. Navy to navigate and detect underwater objects. A ship emits a sound wave in the direction of a certain object. It then measures the amount of time it takes the sound wave to return. Knowing how fast a sound wave travels lets you calculate how far away the object is. This technique is used to create maps of the ocean floor. It is also used to detect submarines and other submerged objects.

Ultrasound- Ultrasound devices work in a way very similar to sonar. They emit sound waves that are reflected by tissues in the body. The amount of time it takes for the reflected sound waves to return to the machine allows the machine to produce an image of a part of the body.

The reason the answer is not also radar (Although radar is a reflected sound wave), is because Radar is a radio wave. The question is asking to name reflected sound wave technologies not radio wave.

hope this helps

Given :

Initial speed of car A is 15 m/s and initial speed of car B is zero.

Final speed of car A is zero and final speed of car B is 10 m/s.

To Find :

What fraction of the initial kinetic energy is lost in the collision.

Solution :

Initial kinetic energy is :

\(K.E_i = \dfrac{15^2m}{2} + 0\\\\K.E_i = \dfrac{225 m}{2}\)

Final kinetic energy is :

\(K.E_f = \dfrac{10^2m}{2} + 0\\\\K.E_f = \dfrac{100m}{2}\)

Now, fraction of initial kinetic energy loss is :

\(Loss = \dfrac{\dfrac{225m}{2}-\dfrac{100m}{2}}{\dfrac{100m}{2}}\\\\Loss = \dfrac{125}{100}\\\\Loss = 1.25\)

Therefore, fraction of initial kinetic energy loss in the collision is 1.25 .

Answer:

The force is  \(F = 784 \ N\)

Explanation:

From the question we are told that

      The mass of the man is  \(m = 70 \ kg\)

      The mass of the beam is \(m_b = 10 \ kg\)

Now from the question we can deduce that when this beam start to tip that both the force exerted by the weight of the man and that of the beam is been supported by the  right support so

 The force exerted on the right support is mathematically evaluated as

           \(F = (m + m_b) * g\)

substituting values

         \(F = (70 + 10 ) * 9.8\)

         \(F = 784 \ N\)

The force exerted on the beam by the right support is 784 Newton.

Given the data in the question;

Force exerted on the beam by the right support; \(F = W = \ ?\)

When the beam just starts to tip, the right support holds up the combined mass of the man and the beam.

Hence;

\(M_{net} = m_m + m_b\\\\M_{net} = 70kg + 10kg\\\\M_{net} = 80kg\)

Now, To determine the force exerted on the beam by the right support, we use the general formula for weight or equation of force of gravity which is expressed as:

\(F = W = m * g\)

Where m is mass and g represents the acceleration due to gravity( \(9.8m/s^2\) )

We substitute our values into the equation

\(F = 80kg * 9.8m/s^2\\\\F = 784kg.m/s^2\\\\F = 784N\)

Therefore, the force exerted on the beam by the right support is 784 Newton.

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Answer: low = 1.73 m and high = 0.129 m

Explanation: All you have to do is use the formula (Wavelength = Velocity/Frequency. Which would be 340m/s divided by 196 Hz and then 340m/s divided by 2637Hz.

The wavelength of a wave is its speed divided by frequency. The wavelength corresponds to the lower frequency of 196 Hz is 1.73 m and that for 2637 Hz is 0.12 m. Hence the wavelength range is 1.73 m to 0.12 m.

Frequency of a wave is the number of wave cycles per unit time. It is the inverse of the time period. Thus, its unit is s⁻¹ which is equal to Hz. Frequency of a wave is inversely proportional to the wavelength.

The relation between speed and frequency with wavelength of the wave is given by,

c = νλ

Given frequency  ν1 = 196 Hz.

speed of sound wave c = 340 m/s

then, wavelength at this frequency λ1 = 340 m/s / 196 Hz = 1.73 m.

For a frequency ν2 = 2637 Hz.

λ2 = 340 m/s/ 2637 Hz = 0.12 m.

Therefore, the range of wavelength of the notes from the violin will be in between 1.73 m to 0.12 m.

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When we see x-rays from an accretion disk in a binary system, we can't immediately tell whether the accretion disk surrounds a neutron star or a black hole. suppose we then observe each of the following phenomena in this system. Intense X-rays bursts would rule out the possibility of a black hole.

This is rotating gas that forms around objects that have a large gravitational force. It can be found around black holes or stars where matter collapses due to gravity to a central object. Accretion disks are structures formed by matter orbiting very large objects. The object is usually a star.

Gravity pulls matter on the disk toward the object it is orbiting. The force of gravity and friction suppresses and raises the temperature of the material to form electromagnetic radiation. The frequency of the radiation depends on the mass of the object being surrounded.

The accretion disks of young stars and protostars form the infrared; The disk surrounding the neutron star and black hole forms X-rays. Research on accretion disks is called discoseismology.

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Answer:

a

   \(a =  12.32 \  m/s^2\)

b

 \(F = 1017.52 \  N\)

Explanation:

From the question we are told that

  The  length of the Chinook salmon is  \(l =  1.50 \  m\)

   The mass of the Chinook salmon is \(m  =  46.0 \ kg\)

   The  upward velocity in water is  \(u =  3.00 \ m/s\)

    The  upward velocity in air is \(v =  5.80 \ m/s\)

Generally from kinematic equations

     \(v^2  =  u^2 +  2as\)

=>    \( 5.80^2  =  3.00^2 +  2  *  a *  [ [\frac{2}{3} * l ]\)

=>   \( 5.80^2  =  3.00^2 +  2  *  a *  [ [\frac{2}{3} * 1.5 ]\)

=>   \( 5.80^2  =  3.00^2 +  2  *  a *  [1 ]\)      

=>    \(a =  12.32 \  m/s^2\)

Generally magnitude of the force F during this interval in N  is mathematically represented as

      \(F  =  m (a + g )\)

=>    \(F  =  46.0 (12.32 + 9.8 )\)

=>    \(F = 1017.52 \  N\)

The nucleons have less mass, because matter is converted into binding energy. Option D is correct.

During the process of combining a neutron and a proton to form a nucleus, a small amount of mass is converted into binding energy. This is due to the strong nuclear force that holds the nucleus together. The mass of the nucleus is slightly less than the sum of the masses of the individual nucleons, and the difference in mass is referred to as the mass defect.

This mass defect is related to the binding energy of the nucleus through Einstein's famous equation E=mc², where E is energy, m is mass, and c is the speed of light. The mass defect represents the amount of mass that is converted into binding energy to hold the nucleus together. Option D is correct.

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The velocity in which this second particle finds itself at a distance r2 = 25,0 cm from point P is 17.22 m/s.

The electric force between the two particles is calculated from Coulomb's law of electrostatic force.

F = kq₁q₂/r²

where;

F = (9 x 10⁹ x 3.10 x 10⁻⁶ x 3.10 x 10⁻⁶) / (0.09 m)²

F = 10.68 N

The velocity in which this second particle finds itself at a distance r2 = 25,0 cm from point P is calculated by applying the principle of conservation of energy.

W = ΔK.E

where;

Fr = ¹/₂mv²

2Fr = mv²

v² = 2Fr/m

v = √(2Fr/m)

v = √(2 x 10.68 x 0.25 / 1.8 x 10⁻²)

v = 17.22 m/s

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Answer:

It is directly proportional to the source charge.

Explanation:

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Answer:

Explanation:

First, let's find A x (B+C):

A x (B+C) = A x B + A x C (distributive property of cross product over vector addition)

Now, we need to find A x B and A x C separately:

A x B = (3i + 3j - 2k) x (i - 4j + 2k) (using the cross product formula)

= (31 + 32) i - (34 - 21) j + (3*(-2) - 3*1) k

= 9i + 10j - 9k

Similarly,

A x C = (3i + 3j - 2k) x (4i - j + 2k)

= (34 - 2(-1)) i - (32 + 31) j + (31 - 34) k

= 14i - 9j - 9k

Now, we can substitute these values into the original equation:

A x (B+C) = A x B + A x C

(3i + 3j - 2k) x [(i - 4j + 2k) + (4i - j + 2k)] = (9i + 10j - 9k) + (14i - 9j - 9k)

Simplifying the right side:

(9i + 10j - 9k) + (14i - 9j - 9k) = 23i + 1j - 18k

Now, let's calculate the left side:

(3i + 3j - 2k) x [(i - 4j + 2k) + (4i - j + 2k)]

= (3i + 3j - 2k) x (5i - 5j + 4k)

= (35 + 24) i - (3*(-5) + 34) j + (35 - 2*(-5)) k

= 23i + 1j + 15k

Therefore, we have:

23i + 1j - 18k = 23i + 1j + 15k

Since the left and right sides are equal, we have shown that:

A x (B+C) = A x B + A x C.

Each of the five friends needs to pay £12 to cover the cost of their own meals and contribute towards the birthday person's meal. Using mean allows us to distribute the cost equally among the friends, ensuring a fair division of expenses for the meal.

To determine how much each of the five friends needs to pay, we can use the concept of averages (mean) and divide the total cost by the number of people paying.

In this scenario, the total cost of the meal for 6 people is £12 per person. Since the other 5 friends have decided to pay for the birthday person's meal, they will collectively cover the cost of their own meals plus the birthday person's meal.

To calculate the total cost covered by the five friends, we can subtract the cost of one person's meal (since the birthday person's meal is being paid by the group) from the total cost. The cost of one person's meal is £12.

Total cost covered by the five friends = Total cost - Cost of one person's meal

= (£12 x 6) - £12

= £72 - £12

= £60

Now, to find out how much each of the five friends needs to pay, we divide the total cost covered by the five friends (£60) by the number of friends (5).

Amount each friend needs to pay = Total cost covered by the five friends / Number of friends

= £60 / 5

= £12

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Using second equation of kinematics

\(\boxed{\sf s=ut+\dfrac{1}{2}at^2}\)

\(\\ \qquad\quad\sf{:}\dashrightarrow s=0(5)+\dfrac{1}{2}(8)(5)^2\)

\(\\ \qquad\quad\sf{:}\dashrightarrow s=4(25)\)

\(\\ \qquad\quad\sf{:}\dashrightarrow s=100m\)

Answer:

Summary. J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup."

Explanation:

A frame of reference that is inertial is not the elevator.

The elevator must be accelerating.

What is Acceleration?

It is a vector quantity, which means that it has both magnitude and direction. Acceleration is defined as the change in velocity divided by the time it takes for that change to occur. Mathematically, acceleration can be expressed as:

a = (v_f - v_i) / t

where "a" is acceleration, "v_f" is the final velocity, "v_i" is the initial velocity, and "t" is the time taken for the change in velocity.

According to the problem statement, the tension in the string is measured to be 10% less than the force due to gravity on the load. This means that the net force on the load is not zero, and it is accelerating in the direction of the net force, which is downwards.

Since the load is stationary with respect to the observer inside the elevator, the elevator must also be accelerating downwards with an acceleration equal to that of the load. This implies that the elevator is not an inertial frame of reference, as an inertial frame of reference is a frame in which an object at rest remains at rest, or an object in motion moves with a constant velocity in a straight line, in the absence of any external forces.

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A skater pulls her arms inward causing her rotation rate to speed up. The kinetic energy is definitely conserved. So the correct option is Option A.

When the skater pulls her arm inwards, then the angular momentum is conserved. The kinetic energy is also conserved in these cases. Angular momentum is the linear analog of linear momentum and is measured in rotational dynamics. Kinetic energy is the energy an object has because of its motion. If we want to accelerate an object, then we must apply a force. Applying a force requires us to do work. After work has been done, energy has been transferred to the object, and the object will be moving with a new constant speed.

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For a rectangular storage tank filled with paraffin to a depth of 2 m, the volume, weight, mass of paraffin, and pressure at the bottom of the tank are:

a. The volume is 24 m³.

b. weight is 240,000 N,

c. mass is 24,490 kg, and

d. pressure is 23,530 Pa.

a) The volume of paraffin in the rectangular storage tank can be calculated using the formula:

Volume = Length x Width x Depth

Given:

Length = 4 m

Width = 3 m

Depth = 2 m

Substituting the values into the formula, we have:

Volume = 4 m x 3 m x 2 m

Volume = 24 m³

Therefore, the volume of paraffin in the tank is 24 cubic meters.

b) The weight of the paraffin can be calculated using the formula:

Weight = Volume x Density x Acceleration due to gravity

The density of paraffin varies, but we can assume a typical value of 10,000 kg/m³. The acceleration due to gravity is approximately 9.8 m/s². Substituting these values into the formula:

Weight = 24 m³ x 10,000 kg/m³ x 9.8 m/s²

Weight = 240,000 N

Therefore, the weight of the paraffin in the tank is 240,000 Newtons.

c) The mass of the paraffin can be calculated using the formula:

Mass = Density x Volume

Substituting the given values:

Mass = 10,000 kg/m³ x 24 m³

Mass = 24,490 kg

Therefore, the mass of the paraffin in the tank is 24,490 kilograms.

d) The pressure at the bottom of the tank due to the paraffin can be calculated using the formula:

Pressure = Weight / Area

The area of the bottom of the tank is equal to the length multiplied by the width. Substituting the values:

Area = 4 m x 3 m

Area = 12 m²

Pressure = 240,000 N / 12 m²

Pressure = 20,000 Pa

Therefore, the pressure at the bottom of the tank due to the paraffin is 20,000 Pascals (Pa).

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This question is incomplete, the complete question is;

A driver takes 3.5 s to react to a complex situation while driving at a speed of 60 mi/h.

How far does the vehicle travel before the driver initiates a physical response to the situation (i.e., putting his or her foot on the brake)

Answer:

the distance travelled by the vehicle, before the driver initiates a physical response is 308 ft

Explanation:    

Given that;

Reaction time t = 3.5 sec

Speed S = 60 mi/h

we convert mile to foot and hour to seconds

so

Speed S = 60 mi/h =  (60×5280)/(60×60) = 316800/3600 = 88 ft/sec

Now, The distance travelled by vehicle before the driver  initiates physical response is equal to Lag distance. i.e

Lag distance = V × t

we substitute

Lag distance = 88 ft/sec  3.5 sec

Lag distance = 308 ft

Therefore, the distance travelled by the vehicle, before the driver initiates a physical response is 308 ft

Answer:

Choice 2: 6/17

Explanation:

4+7=11. 6+11= 17. so it's 6/17

The period of the pendulum, given that the pendulum has an angular velocity about the pivot point of 0.66 radians/sec is 9.52 seconds

First, we shall list out the given parameters from the question. This is shown below:

The period and angular velocity are related according to the following formula:

ω = 2π/ T

Inputting the given parameters, we can obtain the period of the pendulum as follow:

0.66 = (2 × 3.14) / T

0.66 = 6.28 / T

Cross multiply

0.66 × T = 6.28

Divide both sides by 0.66

T = 6.28 / 0.66

T = 9.52 seconds

Thus, we can conclude that the period of the pendulum is 9.52 seconds

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A subsurface is something that is below the layer that is on the surface, whereas a surface is the topside or upward side of a flat item like a table or a liquid.

Surface mining takes place on the Earth's surface and involves moving unused materials out of the way. Subsurface mining, on the other hand, does not involve moving unused sediments or rocks out of the way.

processes on the surface that convert rock to sediment. deposition. sediment settles on the surface away from the breeze or water that is carrying it. melting. happens as rock sinks towards the mantle of the Earth.

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D. The angle between the force and displacement is 0 degrees.

An object's push or pull is seen as exerting a force. The interaction of the objects produces push and pull.

An external force is an agent that can alter a body's resting or moving condition. It has a direction and a magnitude. The application of force is the location at which pressure is applied, and the direction in which the force is applied is known as the direction of the force.

A spring balance can be used to calculate the Force. Newton is the SI unit of force (N).

The equation for work is :

W =F.dcos\(\theta\)

Work done is maximum when :

cos\(\theta\) = 1 ⇒ \(\theta\) = 0°

This means that force and displacement vectors are parallel to each other and both are acting in the same direction.

Therefore the correct answer is D: The angle between the force and displacement is 0 degrees.

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The value of the elementary charge is

We have to find a charge equivalent to 3e.

The charge equivalent to 3e will be

Thus, the correct option is c.