Block 1 is sliding toward identical block 2 on a surface of negligible friction. In situation 1, after the two blocks collide, the block 1 stops and block 2 moves off to the right. It situation 2, the two blocks collide and stick together. Which of the following claims correctly describes the motion of the center of mass of the two-block system and provides reasoning for that claim?


In situation 1, the center of mass never changes its speed, because block 1 is moving before the collision, and block 2 is moving after the collision.

Answer A: In situation 1, the center of mass never changes its speed, because block 1 is moving before the collision, and block 2 is moving after the collision.
A

In situation 1, the center of mass never changes its speed, because there are no net external forces on the system before, during, or after the collision.

Answer B: In situation 1, the center of mass never changes its speed, because there are no net external forces on the system before, during, or after the collision.,
B

In situation 2, the center of mass slows down after the collision but continues to the right, because the blocks are always moving to the right.

Answer C: In situation 2, the center of mass slows down after the collision but continues to the right, because the blocks are always moving to the right.
C

In situation 2, the center of mass slows down after the collision but continues to the right, because the direction of motion of the center of mass never changes direction in a collision.

Answer D: In situation 2, the center of mass slows down after the collision but continues to the right, because the direction of motion of the center of mass never changes direction in a collision.
D

In situation 2, the center of mass has a zero velocity, because the velocity of the center of mass of the system is always zero.

The answer is A.Yes

Explanation:

The amplitude of a wave is the height of a wave as measured from the highest point of the wave to the lowest on the wave.

Answer:

hold the plant in the ground

keep the plant upright

absorb water from the soil

take in nutrients from the soil

transport water and nutrients to the plant

provide a place for food storage

Explanation:

The plants are very complex organisms and can be classified into various types based on certain characteristics. The roots are very important structures which provide a lot of functions.

The roots are the important underground part of all the vascular plants. This part of the plant is generally responsible for anchoring it down into the ground and absorbing all the essential minerals, nutrients, and water from the soil.

The root of the plant also help us to store the food. The roots are not the reproductive part of the plants, they are called the vegetative parts. In certain plants, the roots are the means of reproduction. This type of reproduction is called the vegetative reproduction.

The roots also check the soil erosion, provide sustenance and also habitat for various organisms. The root absorb water and minerals from the soil and help in the process of photosynthesis.

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Answer:

12,000 grams = 12 kg

Explanation:

Volume V = 20 x 20 x 30 cm³ = 12,000 cm³

density of water d = 1 g/cm³

so the mass is 12,000 grams = 12 kg

Answer:

C

Explanation:

The longer an object, the slower it vibrates and since frequency is the number of oscillations an object makes per second, then you can say the longer the object, the lower the frequency, and the inverse is true.

Answer:

In fact, God already knows how your story will end. The thing is, it’s really his story and he created you to be a unique and significant part of it. That’s why you can have faith that he is working to take care of you and to give you a good future. God repeatedly says in Scripture that he will one day reward us for our faith.

Good luck

Explanation:

Answer:

I the moment of inertia is less if the other children sit in the center

Τ = I α   the angular acceleration will be greater for a given torque Τ

Answer:

The greater the amplitude of a wave, the ( less/more ) energy it is transferring.

The more energy; so that means less would be the incorrect word

As waves spread out from a source, the energy they transfer gets more ( concentrated/ spread out )

Spread out; so that means concentrated would the be the incorrect word

and so the amplitude of the waves gets ( larger/ smaller)​

Smaller; so that means larger is the incorrect word

Answer:

It's either B or D, I'm not positive which it is

Explanation:

Answer:

The answer is B.

Explanation:

The two resistors are in the same square space, while the others are not.

The law of conservation of energy supports climate change research because the energy we use is released into the atmosphere, creating loop of continual absorption and releasing of heat.

The law states that energy can neither be created nor destroyed but can always be converted from one form to another.

In light of this, any energy used by humans or natural processes is not destroyed. Instead, they are converted into another form or released into the atmosphere.

In the atmosphere, absorption and release of heat energy by greenhouse gases and irradiation create a loop. This loop causes a net heating or cooling of the planet, a phenomenon that affects the climate.

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Explanation:

The box will undergo an acceleration. Due to Newton's 3rd Law, any action causes an equal and opposite reaction. The equal and opposite force from the box will not cancel the force that you are applying.

Answer:

The box will not move as it is in a a stable condition

Explanation:

when an equal and opposite force acts on a body the effects of forces cancels out. provided the body can withstand the tensile and compressive actions of the forces. when both forces are coming together it leads to compression while tension refers to forces moving away fro, each other.

Answer:

F=k*x or

k is the spring constant, in Newtons per meter (N/m), and x is the displacement of the spring from its equilibrium position. The spring constant, k, is representative of how stiff the spring is. Stiffer (more difficult to stretch) springs have higher spring constant

Explanation:

Answer:

N/m

Explanation:

Spring force is defined as

F=kx

So,

the terms for spring constant can be rearranged to find

F/x =k

which simplifies to

N/m

since force F is in newtons, and displacement x is in meters.

Answer:

B

Explanation:

For every action,there is an equal but opposite reaction.

Answer:

move closer together, decreasing the volume

Explanation:

Answer:

I= 1/2 mr^2 solve for mass m.

radius given

angular momentum: I*w=I*2

KE= 1/2 I w^2= 1/2 I *2^2

Explanation:

The mass of the uniform disc at the given moment of inertia is determined as 16.67 kg.

The mass of the uniform disc is calculated from the moment of inertia of the disc.

I = ¹/₂mr²

2I = mr²

m = (2I)/r²

where;

m = (2 x 75)/(3²)

m = 16.67 kg

Thus, the mass of the uniform disc at the given moment of inertia is determined as 16.67 kg.

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Answer:

Explanation:

this is a wste of time and question people realy want to learn in this page.

Answer:

The sun's interior is similar to the Earth's; it has a core, mantle, and crust

h=vot-1/2gt²

h=30 x 3 - 1/2 x 9.8 x 3²

h = 45.9 m

t = 2to

t = 2 x 3 = 6s

Answer:

0.065 seconds

Explanation:

i) Change in momentum is equal to impulse so, m(v-u) = ft  (Where f is force and t is time)

ii) Since we know the mass of the ball, we change grams to the SI unit of kilograms, kg so 0.057kg

iii) We are also told that the ball CHANGES direction, so we know that the new velocity is the negative value of the initial one,

iv) Putting this all together we get 0.057(25--15) which is the same as 0.057(25 + 15)

v) We get an impulse of 2.28 Ns

vi) We take this value and divide it by 35 as we want the Force alone and not the time,

vii) To which we get 0.065 seconds,

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The statement that best explains this difference is "As the block is moving across the table, friction will affect the block’s motion and thus could account for the difference" (option A).

In physics, friction can be defined as a force of resistance that occurs when an objects moves above a surface or above another object. Friction can be classified in four types:

This force opposes the movement of the object and therefore it can affect the velocity of the object by decreasing it. Based on this, it is likely that the difference in the calculation is because of friction as this was not considered (option A).

Note: This question is incomplete; here is the missing section:

A. As the block is moving across the table, friction will affect the block’s motion and thus could account for the difference.

B. It is possible that a small amount of the original block was lost during the explosion.

C. When the student did the calculation, the student assumed that the explosion occurred just as the block reached the origin. The difference in velocity could be due to the explosion occurring either just before or just after the origin.

D. The explosion created a force that affected the experiment.

E. Conservation of momentum is not the correct equation to apply to the explosion, since the two pieces apply forces to each other.

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Answer:

The difference between the calculated and measured velocity of the piece of mass m2 can be attributed to several factors. Here are a few possible explanations:

1. Measurement error: It's possible that there were errors or inaccuracies in the measurements taken by the motion sensor. This could include issues with the sensor itself, calibration errors, or human error in recording the data.

2. Friction and air resistance: The experiment assumes an ideal scenario where there are no external forces acting on the block and the resulting fragments. However, in reality, there may be friction and air resistance present, which can reduce the velocity of the pieces after the explosion. These factors were not accounted for in the conservation of momentum calculations.

3. Internal forces: The explosion of the block into two pieces involves internal forces between the fragments. These forces may not be completely accounted for in the conservation of momentum analysis. If there are significant internal forces acting during the explosion, they could reduce the calculated velocity of the piece of mass m2 compared to the measured value.

4. Incomplete information: It's possible that there is additional information or factors that were not considered in the given description of the experiment. Without knowing all the details, it's challenging to pinpoint the exact reason for the discrepancy between the calculated and measured velocity.

In summary, the most likely explanation for the difference between the calculated and measured velocity of the piece of mass m2 is measurement error or the presence of external forces (such as friction and air resistance) and internal forces (during the explosion) that were not accounted for in the analysis.

Testing site provides real environment to the scientists.

This type of site might help scientists to solve a problem during a mission because the site provides real environment and similar problems comes to the scientist which can be solved so that the real experiment can't experience such type of difficulties so we can conclude that testing site provides real environment to the scientists.

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Answer:

9m/s

Explanation:

Average velovity= (Initial velocity+Final velocity)/2

or A.V=(0+18)/2

or A.V= 9m/s

A sprinter starting from rest reaches final velocity of 18.0 mi/h. The average velocity of the sprinter is 9.0 mi/h.

Given that the sprinter starts from rest and reaches a final velocity of 18.0 mi/h, we can assume that the sprinter accelerates uniformly. Therefore, her average velocity would be the average of her initial velocity (0 mi/h) and her final velocity (18.0 mi/h).

Average velocity = (Initial velocity + Final velocity) / 2

Average velocity = (0 mi/h + 18.0 mi/h) / 2

Average velocity = 18.0 mi/h / 2

Average velocity = 9.0 mi/h

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Answer:

C. 11.2 seconds

The mean value of three trials of 11, 11.4 and 11.2 seconds will be 11.2 seconds

The mean for any data is defined as the ratio of the sum of all the data to the number of the data.

It is given that

[tex]t_1=11\ \ \ \ \ \ \ \ t_2=11.4 \ \ \ \ \ \ \ \ t_3=11.2[/tex]

Now the mean is given as

[tex]\rm Mean=\dfrac{t_1+t_2+t_3}{N}[/tex]

[tex]\rm Mean=\dfrac{11+11.4+11.2}{3}=11.2 \ Sec[/tex]

Hence the mean value of three trials of 11, 11.4 and 11.2 seconds will be 11.2 seconds

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The ball will operate under the laws of parabolic projectile motion and possess features sure as

The acceleration of the basketball at the highest point in its trajectory is a=0

Question Parameters:

the basket and player are of the same height.

He shoots the ball at angle 45 o

The height covered through the trajectory is 2.05 m 0 = 45°

The ball will create a parabolic shape to make a basket

Generally, the equation for the projectile motion is mathematically given as

y = (tan θ0)x – gx2/2(v0cosθ0)2

Therefore

This formula will calculate the motion of the ball.

With the y as its vertical representation and x as its horizontal representation

In conclusion, characteristics of the throw

a=0

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Answer:

because the friction/movement of the bikes wheels, generates electricity and energy that the light can use to generate electricity and it also does not have a battery on it and relies on the wheels to generate the electricity for the light to work.

Explanation:

Answer:

Paper is an insulator.

Please mark as brainliest

Answer:

Paper is an insulator because it don't allow heat to pass or flow through them.

Conductor

•Are materials that can transfer heat easily.

•Allowing heat to transfer freely through them.

Ex: cooking pan

    silver

    metal spoon

    nail

Insulator

Are materials that do not allow heat to pass through them.

Ex: rubber

     wood

     leather

     plastic

     paper

Answer:

Cyberpunk has worst Physics

A low latitude, the energy transferred from the sun is high while at a high altitude the energy transferred from the sun is low.

Latitude is an angle which ranges from 0 degree at the Equator to 90 degrees at the poles of the Earth.

At higher latitudes, the sun's rays are less direct and a lower latitude the ray's of the sun are more direct. The farther an area is from the equator, the lower its temperature.

Thus, a low latitude, the energy transferred from the sun is high while at a high altitude the energy transferred from the sun is low.

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Answer:

D

Explanation:

If the distance is reduced by factor of 2, lets say the distance was 10cm

reducing by a factor of 2 will leave the distance at 5cm

so the electric force increases by a factor of 2