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antoniya [11.8K]
3 years ago
13

A 20 N force is applied to a .170kg hockey puck. What is the acceleration of the puck?

Physics
1 answer:
shutvik [7]3 years ago
4 0
You want to use the equation F=ma, so
20N=(0.170kg)a, divide 0.170 from both sides
a=117.64705..., since .170 has 3 significant figures, round to 3 significant figures
a=118 m/s²





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A 50-gram sample of water is initially at a temperature of 22 °C. The sample is heated until the temperature is 32 °C The specif
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Answer:

500cal

Explanation:

Given parameters:

Mass of water  = 50g

Initial temperature  = 22°C

Final temperature  = 32°C

Specific heat of water  = 1cal/g

Unknown:

Amount of heat absorbed by the water in calories  = ?

Solution:

To solve this problem, we use the expression below:

       H  = m c Ф

H is the amount of heat absorbed

m is the mass

c is the specific heat capacity

Ф is the temperature change

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2 years ago
What controls how fast an object falls?
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Answer:

gravity

Explanation:

as the earth rotates on an axis, it causes an effect known as centripetal acceleration with is an acceleration that pulls objects towards the center of the object. in planets, we call this Gravity

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An electron in a vacuum is first accelerated by a voltage of 81700 V and then enters a region in which there is a uniform magnet
Vilka [71]

Answer:

Magnetic force is equal to 1.37\times 10^{-11}N

Explanation:

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Answer:

s=62.5m

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0²=25²+2(-5)s

10s=625

s=62.5m

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