A pitcher claims he can throw a baseball with as much momentum as a 3.00-g bullet moving with a speed of 1500 m/s. A baseball has a mass of 0.145 kg. What must be its speed if the pitcher's claim is valid?
31.0 m/s
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Mars has almost no water.
Answer the following statement true (T) or false (F)
A thin 2.00-m string of mass 50.0 g is fixed at both ends and under a tension of 70.0 N. If it is set into small-amplitude oscillation, what is the frequency of the first harmonic mode?
A) 6.61 Hz B) 13.2 Hz C) 26.5 Hz D) 52.9 Hz
Standing Sound Waves: Consider two pipes of the same length: one pipe is open at both ends and the other pipe is closed on one end but open at the other end. If the fundamental frequency of the totally open pipe is 300 Hz, what is the fundamental frequency of the other pipe?
A. 150 Hz B. 300 Hz C. 450 Hz D. 600 Hz
Many astronomers now regard Pluto as just one of the largest of the thousands of Kuiper Belt bodies found beyond Neptune
Indicate whether the statement is true or false