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borishaifa [10]
3 years ago
10

What would be a good example of kinetic energy?

Physics
1 answer:
Free_Kalibri [48]3 years ago
7 0

Answer:

3) a skier racing down a hill

Explanation:

Remember kinetic energy is energy which a body possess by virtue of being in motion. So anything that is in motion will gain kinetic energy and lose potential energy. Answer 3 was the only object in motion. Kinetic energy is also named energy of motion.

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vredina [299]

Answer:

f = 0.283

Explanation:

With the given values x=5m and t=2s, the acceleration a of the block must be:

(1) a=\frac{2x}{t^2}

The sum of all forces in the inclined plane must be:

(2) F=ma=sin(\theta) F_{gravity}-F_{friction}=sin(\theta) mg - f cos(\theta) mg

Solving equation2 for the acceleration a:

(3) a=sin(\theta) g - f cos(\theta) g

Using equations 1 and 3 to solve for f:

\frac{2x}{t^2}=sin(\theta) g - f cos(\theta) g\\f=tan(\theta)-\frac{2x}{t^2cos(\theta)g}

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3 years ago
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uysha [10]
Three parts that make up atoms?
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If the top circuit has an oscillation frequency of 1000 Hz, the frequency of the bottom circuit is:_______.
kiruha [24]

Answer:

1410 Hz

Explanation:

Capacitance is reduced by 2, so the angular frequency will increase by a factor of \sqrt{2}.

5 0
3 years ago
The theory of plate tectonics explains many geological events, including
OLga [1]

Answer:

D

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5 0
3 years ago
What is the acceleration of a car that goes from zero to 60m/s in 15s?
bonufazy [111]

Answer:What is the acceleration of a car that moves from rest to 15.0 m/s in 10.0 s? Vi=0, vf= 15.0 m/s,t=10.0s, a=? a= vf =vi/tA=15.0m/s-0m/s/10.0s = 15.0s/10.0s m/s*1/s =1.50 m/s^2 11.

Explanation:

3 0
3 years ago
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