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3 years ago

A 7.30-kg bowling ball is on a storage rack that is 1.12 m above

Physics

1 answer:

Marina CMI [18]3 years ago

6 0

Answer:

80.12J

Explanation:

Given parameters:

Mass of the bowling ball = 7.3kg

Height of the storage rack = 1.12m

Unknown:

Energy the ball would have exerted = ?

Solution:

To solve this problem, the potential energy is the best parameter to use.

Potential energy is the energy due to the position of a body. It is expressed as:

Potential energy = mass x gravity x height

So;

Potential energy = 7.3 x 9.8 x 1.12 = 80.12J

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Answer:

Option B is correct.

Explanation:

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4 years ago

This diagram shows the magnetic field lines near the ends of two magnets. There is an error in the diagram.

hoa [83]

I believe the answer is c

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An inattentive driver is traveling 18.0 m/s when he notices a red light ahead. his car is capable of decelerating at a rate of 3

ryzh [129]

Speed of the car given initially

v = 18 m/s

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Now after applying brakes the distance covered by the car before it stops is given by kinematics equation

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vi = 18 m/s

vf = 0

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$0^2 - 18^2 = 2*(-3.35)(s)$

$s = 48.35 m$

So total distance after which car will stop is

$d = d_1 + d_2$

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4 years ago

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Oxana [17]

The answer is 45 degrees

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3 years ago

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catapult’s lever holds a cannonball. The lever is attached to a tightly held rope. When the rope is released, the lever springs

Shalnov [3]

Answer:

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3 years ago