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LenaWriter [7]
3 years ago
8

What is the kinetic energy of a 4 kg toy car moving at 5 m/s?

Physics
1 answer:
Mamont248 [21]3 years ago
4 0

Answer:

50 J

Explanation:

<3

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A simple pendulum consists of a mass m (the "bob") hanging on the end of a thin string of length l and negligible mass. The bob
svetlana [45]

Answer:

The pendulum frequency  is (c) the same, or very close to it

Explanation:

The simple pendulum corresponds to a simple harmonic movement, to reach this approximation in the expression of the force the sine of the angle (θ) approaches an angle value, this is only true for small angles, generally less than 15º

Sine (15th) = 0.2588

The angle in radians is 15º π / 180º = 0.26180.2588 / 0.2618

The difference between these two values ​​is less than 1.2%

for smaller angle the difference is reduced more

Therefore, the period for both the 5º and 10º angles is almost the same

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3 years ago
A student uses the right-hand rule as shown.
m_a_m_a [10]

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A passenger on a Ferris wheel moves in a vertical circle at a constant speed. Are the forces on her balanced?
vovikov84 [41]

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When a warm air mass is trapped between two cooler air masses, it is called a/an
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The answer is C. An occluded front.
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One terminal of a car battery is said to be connected to “ground.” since it is not really connected to the ground, what is meant
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