A 2.0-kg object moving with a velocity of 5.0 m/s in the positive x direction strikes and sticks to a 3.0-kg object moving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?
a. 2.4 J
b. 9.6 J
c. 5.4 J
d. 0.6 J
e. 6.0 J
c
Physics & Space Science
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What will be an ideal response?
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Indicate whether the statement is true or false
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An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. If the ambulance is traveling at a velocity of 24.00 m/s away from the stationary observer, then what is the frequency of the siren perceived by the observer?
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Physics & Space Science