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Studentka2010 [4]
2 years ago
5

1. The hockey puck is given an initial speed of 20.0m/s on a frozen pond. The

Physics
2 answers:
DerKrebs [107]2 years ago
6 0

Answer:

B.o.19

Explanation:

andreyandreev [35.5K]2 years ago
5 0
Yurooo iwhvrn u w. N f c
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Answer:

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Explanation:

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2 years ago
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Are there any exceptions to the rule that planets rotate with small axis tilts and in the same direction as they orbit the sun?
Alona [7]
<span>Venus, Uranus, and Pluto are exceptions</span>
4 0
3 years ago
A dog of mass 4 kg runs up a hill of height 8 m. How much gravitational potential energy does the dog gain?
Genrish500 [490]
A. 314 because when you use the formula for the GPE ; GPE=MGH or means mass times gravity time height (4x8x9.8) and thats equivalent to 313.6 which rounds up to 314. Hope it helps 
8 0
3 years ago
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one thing that stringed, wind, and percussion instruments have in common in regard to the sounds they produce is that a. the ins
mario62 [17]

The answer is:

d) the sound originates from a vibration.

The explanation:

The sound waves are generated by a sound source, such as the vibrating diaphragm of a stereo speaker. The sound source creates vibrations in the surrounding medium. As the source continues to vibrate the medium, the vibrations propagate away from the source at the speed of sound, thus forming the sound wave.

3 0
3 years ago
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During a race, a runner runs at a speed of 6 m/s. 2 seconds later, she is running at a speed of 10 m/s. What is the runner’s acc
Lapatulllka [165]
Let's calculate the average acceleration. It is the rate of changing speeds. Hence, we need to calculate the difference of speeds. 10-6=4 m/s. The rate is now \frac{4m/s}{2s} =2m/s^2.
In general, the formula for the mean acceleration between two times 1 and 2 is given by:
\frac{u_2-u_1}{T} where v1 and v2 are the speeds at the respective points and T is the time interval between them.
5 0
2 years ago
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