According to the saving of the momentum, the total momentum before collision is equal to the total momentum after collision
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thus
then, the initial momentum of the second cart
Answer:
for a mass m = 10kg on Earth it`s weight is W = mg = 10 x 10 = 100N.
Explanation:
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Answer: Light is a form of electromagnetic radiation because it has the ability to travel from one type of medium to another and can also carry some energy along with it. A light wave has two components, namely the electric field component as well as the magnetic field component that are both perpendicular to the propagating direction.
The visible light lies between the ultraviolet and the infrared lights, with wavelength from 400 nm to 700 nm respectively. This is collectively known as the visible spectrum of light.
Running on sand requires 1.6 times more energy spent than running on hard surface, so the force applied by our foot on sand is less.
