Physics, 19.10.2019 05:30 jakebice5991
It is well known that bullets fired at superman simply bounce off his chest. suppose that a gangster sprays superman's chest with bullets of mass m = 1.7 g at a rate of r = 165 bullets/min. the speed of each bullet is v = 380 m/s. suppose the bullets rebound with no change in speed. what is the average force exerted by the stream of bullets on superman's chest?
Answers: 2
Physics, 22.06.2019 09:00
A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped
Answers: 3
Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 18:30
Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.
Answers: 1
Physics, 23.06.2019 00:00
Why should the wavelength scale of spectroscope be calibrated
Answers: 2
It is well known that bullets fired at superman simply bounce off his chest. suppose that a gangster...
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