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An 8-kg wooden panel is suspended from a pin support at A and is initially at rest. A 2-kg metal sphere is released from rest at B9 and falls into a hemispherical cup C9 attached to the panel at the same level as the mass center G. Assuming that the impact is perfectly plastic, determine the velocity of the mass center G of the panel immediately after the impact.
An 1865 kg airplane starts at rest on an airport runway at sea level. (a) What is the change in mechanical energy of the airplane if it climbs to a cruising altitude of 2420 m and maintains a constant speed of 96.5 m/s?
What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2? Express your answer using two significant figures.
An object is accelerated by a force. If the acceleration increases by a factor 2 and the mass increases by a factor 3, by what factor was the force increased? The answer must be exact.
A military helicopter on a training mission is flying horizontally at a speed of 75.0 when it accidentally drops a bomb (fortunately, not armed) at an elevation of 450 .How much time is required for the bomb to reach the earth? How far does it tra..
A goldfish bowl is spherical, 8 cm in radius. A goldfish is swimming 3.0 cm from the wall of the bowl. Where does the fish appear to be to an observer outside
Two identical 1.40 kg masses are pressed against opposite ends of a spring of force constant 1.70 N/cm, Find the maximum speed of each mass when it has moved free of the spring on a smooth
A series R-L-C circuit of R = 200 Ω, L = 0.900 H and C = 2.00 µF carries an rms current of 0.250 Amp with a frequency of 100 Hertz. Find what average power is delivered by source
When ultraviolent light with a wavelength of 262nm falls upon a clean metal surface, What is the photoelectic threshold wavelength for this metal
The spaceship Intergalactica lands on the surface of the uninhabited Pink Planet, which orbits a rather average star in the distant Garbanzo Galaxy. A scouting party sets out to explore. The party\'s leader–a physicist, naturally–immediately makes..
A 10720 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 35 mph, 33 degrees East of North. calculate the force of the wind on the boat
A 140 g ball moving at 0.35 m/s in the + x-direction is subject to a 0.20 N force in the - y-direction for 2.0 s, Find the magnitude of the ball's momentum change
A 22nF capacitor is in series with a 1.25 (M)(Ohm) resistor. The capacitor is initially uncharged when the series combination is connected across a 24.0V battery. obtain the maximum charge the capacitor will eventually attain
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