3 years ago

Within a vacuum, the property to all electromagnetic waves is their

Physics

1 answer:

bezimeni [28]3 years ago

7 0

The answer is D) Velocity

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15.76N

Explanation:

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3 years ago

A runaway railroad car, with mass 30x10^4 kg, coasts across a level track at 2.0 m/s when it collides with a spring loaded bumpe

Natalija [7]

Answer:

0.775 m

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As the car collides with the bumper, all the kinetic energy of the car (K) is converted into elastic potential energy of the bumper (U):

$U=K\\frac{1}{2}kx^2 = \frac{1}{2}mv^2$

where we have

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$v=2.0 m/s$ is the speed of the car

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If an object has a mass of 10 kilograms, how much does it weigh in newtons?

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10 kilograms of mass weighs 98.1 newtons on Earth,
16.2 newtons on the Moon, 37.1 newtons on Mars,
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