Which of the following observations represent conclusive evidence of an interaction? (select all that apply.)
a. change of temperature without change of velocity
b. change of identity without change of velocity
c. change of position without change of velocity
d. change of shape or configuration without change of velocity
e. change of direction without change of speed
Answers: 2
Physics, 22.06.2019 11:00, tdahna0403
Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg • what must the total momentum of the system be after the train cars collide? kg •
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Physics, 22.06.2019 11:00, SoccerHalo
If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c
Answers: 1
Physics, 22.06.2019 14:00, batmanmarie2004
Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
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