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A soft tennis ball is dropped onto a hard floor from a height of 1.60 M and rebounds to a height of 1.13 m. Assume that the positive direction is upward. Calculate its velocity just before it hits the floor.. calculate 3.50 meters per second. How much did the ball compress during its collision with the floor, assuming the floor is absolutely rigid?
A curved portion of a highway under construction has aradius of 520 m. The legal speed limit of this highway is 100 km/h. At what angle does this portion of the highway have to bebanked so that a car can safely travel at the speed limit when there ..
a burst of mesons travel down an evacuated beam tube at fermilab at beta .92 with respect to the laboratory.a compute y
A kangaroo jumps vertical into the air and returns to the ground 2.00s later. How high did the kangaroo jump
a ball is thrown upward from the ground with an initial speed of 25 ms at the same instant a ball is dropped from a
a girl kicks a ball from ground level. the initial velocity of the ball has an x-component of 17 m/s and a y-component of 10 m/s, what is the highest elevation reached by the ball
A 48 kg skier skis directly down a frictionless slope angled at 13° to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier.
1. the light of incidents under the angle 60deg from vacuum onto transparent medium. the anglr of refraction is 45deg.
If 30 V peak to peak is measured by oscilloscope, find what will a digital millimeter display as AC volt
a an ideal gas occupies a volume of 3.0-cm3 at 20degc and atmospheric pressure. determine the number of molecules of
You need to design a photodetector that can respond to the entire range of visible light. find the maximum possible work function of the cathode
two diffraction gratings a and b are located at the same distance from the observation screens. light with the same
A real ammerter has non-zero resistance, and so acts like aresistor in a circuit. One ammerter has resistance 0.5Ω. Whenit is placed across a battery (with emf ε and internalresistance r), the terminal voltage of the battery is 5.0V.
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