A 13 g bullet traveling 230 ms penetrates a 20 kg block of
A 13 g bullet traveling 230 m/s penetrates a 2.0 kg block of wood and emerges going 170 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
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some clocks that are powered by an ac voltage use the ac frequencyto keep time the power company makes this possible by
ionization energy is defined as the amount of energy input that is needed from an outside source to remove an electron
a rocket-powered hockey puck has a thrust of 100 n and a total mass of 210 kg it is released from rest on a
using the arrhenius concept of acids and bases identify the arrhenius acid and base in each of the following
a 13 g bullet traveling 230 ms penetrates a 20 kg block of wood and emerges going 170 ms if the block is stationary on
an lcr circuit contains a resistor with r 4200 omega a capacitor withc 6000 microf and aninductor with l 20 mh
a 110kg linebacker tackles an 85kg halfback immediately before the collision the linebacker is slipping with a velocity
a centrifuge in a medical laboratoryrotates at an angular speed of 3400revmin when switched off it rotates through 520
a what is the ratio of the intensity of an earthquake wave as itpasses a point 20 km from the source tothe intensity as
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