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balandron [24]
4 years ago
12

A 10.0 cm3 sample of copper has a mass of 89.6

Physics
1 answer:
Romashka-Z-Leto [24]4 years ago
4 0
Density is mass divides by volume, so
89.6g / 10cm^3 =8.96g /cm^3

*cm^3 is a standard unit of volume*
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A particle in circular motion performs 30 oscillation in 6 seconds. what is it angular velocity​
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Explanation:

ω = 30 rev × (2π rad/rev) / (6 sec)

ω = 10π rad/s

ω ≈ 31.4 rad/s

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3 years ago
Calculate the gravitational potential energy of the interacting pair of the Earth and a 11 kg block sitting on the surface of th
trasher [3.6K]

Answer:

Gravitational potential energy (GPE) = 107.8J

Explanation:

Gravitational potential energy (GPE) = mgh

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height = assumed to be 1m

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Jason has repressed the memories

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9. A motorcycle accelerates from 10. m/s to 55. m/s in 5.0 seconds. What is the average acceleration of the bike (provide reason
yuradex [85]

Answer:

9.0 m/s/s

Explanation:

Given the following data;

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In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.

Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.

Mathematically, acceleration is given by the equation;

Acceleration (a) = \frac{final \; velocity  -  initial \; velocity}{time}

Substituting into the equation;

a = \frac{55 - 10}{5}

a = \frac{45}{5}

Acceleration, a = 9.0 m/s²

Therefore, the average acceleration of the motorcycle is 9 meters per seconds square because it's experiencing a uniform velocity or motion.

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3 years ago
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The speed of sound in <u> Steel </u>is greater than the speed of sound in water.

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