Physics, 04.04.2020 03:22, montanolumpuy
A 5.0 kg mass with an initial velocity of 4.0 m/s in the +x direction collides with a 4.0 kg mass with an initial velocity of 3.0 m/s in the x direction. After the collision, the 5.0 kg mass has a velocity of 1.2 m/s in the +x direction. What is the magnitude of the velocity of the 4.0 kg mass after the collision? (Hint: momentum is conserved, but energy is not.)
Answers: 2
Physics, 22.06.2019 01:30, hardwick744
The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?
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Physics, 23.06.2019 00:00, hokamidat
You are a researcher for a golf club manufacturer. you are given two identical looking cubes of a metal alloy. you are informed that they are made of the exact same material, but one is crystalline, whereas the other is amorphous. it is your job to determine which one is amorphous this one is more stress-resistant and is useful in reinforcing golf clubs. which of the following is the best way to determine which is which? a. determine the density of each cube. the more dense one is the amorphous solid. b. melt both cubes and look for a broader range of melting temperatures. the one that melts over a broader range of temperatures is the amorphous solid. c. determine the density of each cube. the less dense cube is the amorphous solid. d. melt both cubes and measure the range of melting temperatures. the one that melts over a narrower range of temperatures is the amorphous solid.
Answers: 1
A 5.0 kg mass with an initial velocity of 4.0 m/s in the +x direction collides with a 4.0 kg mass wi...
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