Physics, 27.01.2020 07:31, moneyyfletcher
Ball x of mass 1.0 kg and ball y of mass .5kg travel toward each other on a horizontal surface. both balls travel with a constant speed of 5m/s until they collide. during the collision, ball y exerts an average force with a magnitude of 40 n for 1/6 s on ball x. which of the following best predicts ball y's momentum after the collision?
a. ball y will travel at a speed less than 5m/s in the same direction of travel as before the collision.
b. ball y will travel at a speed less than 5m/s in the opposite direction of travel as before the collision.
c. ball y wil travel at a speed greater than 5m/s in the same direction of travel as before the collision.
d ball y's motion cannot be predicted because the impluse on it is not known.
Answers: 1
Physics, 22.06.2019 14:30, sross8799
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
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Physics, 22.06.2019 17:30, realoneree
This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.
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Physics, 23.06.2019 01:00, shubbs1038a
First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.
Answers: 2
Ball x of mass 1.0 kg and ball y of mass .5kg travel toward each other on a horizontal surface. both...
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