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The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.013 kg, and its velocity is +732 m/s. Her mass (including the gun) is 47 kg.
(a) What recoil velocity does she acquire in response to a single shot from a stationary position, assuming that no external force keeps her in place?
(b) Under the same assumption, what would be her recoil velocity if, instead, she shoots a blank cartridge that ejects a mass of 5.0 10-4 kg at a velocity of +732 m/s?
An ideal heat engine absorbs 98.6 kJ of heat and exhausts 81.6 kJ of heat in each cycle. How much work is done in a cycle
A rock is thrown horizontally from a tower at point A and hits the ground 3.5 s later at point B. find the magnitude of the initial velocity of the rock
An archer shoots an arrow toward a 300-g target that is sliding in her direction at a speed of 2.50 m/s on a smooth, slippery surface. The 22.5-g arrow is shot with a speed of 35.0 m/s and passes through the target, which is stopped by the impact. Wh..
A pole vaulter vaults over the bar and falls onto thick padding. He lands with a speed of 9.8m/s; the padding then brings him to a stop in a time of 0.40s. What is the average force on his body due to the padding during that time interval? Express..
a helicopter moves in such a way that its position at any time is described by the horizontal and vertical equations x
Calculate the blackbody temperatures (K) from the peak wavelengths given in a) through b), and the peakwavelengths (m) from the temperature given inc)
Two capacitors are connected in a parallel combination. C1=6.0 x 10^-6 farad and C2= 3.0 x 10^-6 farad.the voltage applied to the combination is 120 volts. determine the charge that is stored on capacitor C2.
you are outside tossing a football with your friends. you throw the football at an angle of 52.3deg above the
In an experiment, 210 g of aluminum(with a specific heat of 900 J/kgK) at 100°C ismixed with 56.0 g of water (4186J/kgK) at20°C, What is the entropy change of the aluminum-water system
A small postage stamp is placed in front of a concave mirror (radius = 1.1 m), such that the image distance equals the object distance. (a) What is the object distance
A 8.0mH inductor is connected in parallel with a variable capacitor. The capacitor can be varied from 180pF to 320pF. What is the minimum oscillation frequency for this circuit
two sources source a and source b are emitting the same frequency f with the same amplitude a but are out of phase from
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