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To make a bounce pass, a player throws a 0.60-kg basketball towardthe floor. The ball hits the floor with a speed of 5.4m/s atan angle 65o to the vertical. If the ball rebounds withthe same speed and angle, what was the impulse delivered toit by the floor?
A ray of light is incident on the outer glass wall of an aquarium which have a refractive index of 1.51. If the reflected portion of the light is completely polarized at what angle to the normal does the ray enter the water
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=59600 N. What is the magnitude of the lift force
The wheel of a racing car is rotating at 200 rpm at a given instant of time. In the next minute it makes 100 revolutions. The angular acceleration of the wheel is
If you were to walk briefly in space without aspacesuit while far from the Sun (as an astronaut does in the movie2001), At what rate would you lose energy
The air inside a bicycle tire pump has 193 joules of work done on it as 77.3 joules of heat is conducted away from it. What is the change in internal energy of the air
In the circuit of a radio receiver a 540 ?F capacitor is connected in series with a 12.0 mH inductor and a resistance of 2.60 ?. Does the voltage lead or lag the current
A volltage drop of 0.00039 V is measured across a 1.2 m long piece of copper wire when 10 mA of current passes through it. What is the resistivity of copper
q1. sound waves of frequency 502 hz enter a window 1.18 m wide. the window is in the exact center of one wall of a
The nucleus 124 55 Cs has a half-life of 30.8 s and a molar mass of 124 g. What is the initial activity (decay rate) of the sample
Illustrate what are some pros and cons of the kitchen-sink reporting model? Illustrate what are some pros and cons of the minimalist reporting model? Explain and give examples for both.
a person moves 25.0 m along 30 degrees north of east and then he moves 50.0 m due west. how far and in what direction
a television channel is assigned the frequency range from 54 mhz to 60 mhz. a series rlc tuning circuit in a tv
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