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4vir4ik [10]
3 years ago
15

A yellow ball with a mass of 2 kg is rolling across the floor at 3 m/s. A red ball with a mass of 3 kg is rolling across the sam

e floor at 3 m/s. Which ball has greater kinetic energy, and why? The yellow ball has greater kinetic energy, because it is rolling at a higher position above the ground. The red ball has greater kinetic energy, because it has a greater mass. The yellow ball has greater kinetic energy, because it is rolling at a greater speed. The red ball has greater kinetic energy, because it is releasing more thermal energy.
2
SEE ANSWERS
Physics
2 answers:
valentinak56 [21]3 years ago
4 0

Answer: B.)The red ball has greater kinetic energy, because it has a greater mass.

Explanation: i hope this helps!

Amiraneli [1.4K]3 years ago
3 0

Answer:B The red ball has greater kinetic energy because it has greater mass

Explanation:

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Answer:

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Answer:

 W = 9.93 10² N

Explanation:

To solve this exercise we must use the concept of density

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the tabulated density of copper is rho = 8966 kg / m³

let's find the volume of the cylindrical tube

           V = A L

           V = π (R_ext  ² - R_int ²) L

let's calculate

          V = π (4² - 2²) 10⁻⁴  3

          V = 1.13 10⁻²  m³

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the weight of the tube

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4 0
2 years ago
Can someone answer these questions
Aleks04 [339]

Answer:

1. Following the recoil principle, rockets use combustion (a controlled explosion) to work against earth's gravitational attraction.

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(via physicsclassroom.com)

3. The combustion throws out material with very high momentum and is, physically speaking, the action. In reaction to that that, the rocket moves away from it (upward when in starts and has the action underneath it)

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5. Robert Behnken and Douglas Hurley

6. The international space station (ISS)

7. Yes, Stage 1 of the rocket landed on the drone ship. The crew opened the hatch to enter the space station after 21 hours and 39 minutes after the launch from Cape Canaveral.

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Also, due to Musks dream and efforts of SpaceX, space travel seems to get a lot cheaper.

That might indeed open the way back to the moon and further to the Mars for human space flight.

Governments such as the US planned on such things for decades, but changed plans ever since, and routinely changed leadership and the opinion on what's important.

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(wrote most of it for you myself, even tough I'm not a native English speaker. would really appreciate the brainliest if you appreciate the work)

5 0
3 years ago
Read 2 more answers
A person hits a 45-g golf ball. The ball comes down on a tree root and bounces
Verizon [17]

Answer:

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Explanation:

It is given that,

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Mrac [35]

Answer:

\boxed{q = 1.2 \times  {10}^{ - 6} C}

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