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You toss a racquetball directly upward and then catch it at the same height you released it 2.24 s later. Suppose air resistance is negligible.
1. What is the initial velocity of the ball?
2. What is the maximum height of the ball?
Suppose the masses of stars are distributed according to f(M)dM == M^-2 dM. Assume you can use the luminostiy mass relation L == M^3. (Both a and b are constants.) What is teh corresponding distribution function for luminosities, g(L), such that g(L)..
A satellite is in a circular orbit 7900 km above the Earth's surface; i.e., it moves on a circular path under the influence of nothing but the Earth's gravity. Find the time it take to complete one orbit around the earth
A large capacitance of 1.40 mF is needed for a certain application. What is the maximum voltage that can be applied
A converging lens is located 10.0 cm to the left of a diverging lens. The focal length of the converging lens is +20.0 cm. where is the final image formed by the diverging lens
Two capacitors are connected in parallel across the terminals of a battery. What is the voltage of the battery
A vehicle of mass 1420 kilogram traveling at 20 m/s is at the foot of a hill that rises 120 meter in 2 kilometer. Calculate the average power delivered by the vehicle engine
A bar of length 2cm slides along metal rails at a speed of 1cm/s. The bar and rails are in a magnetic field of 2T, What is the induced emf in the bar and rails
Through what angle in degrees does a 33 rpm record turn in 0.25 s? If the diameter of the record is 12 inches, what is the speed of the outer rim of the record
A 10.0-g piece of Styrofoam carries a net charge of -0.700 ?C and suspended in equilibrium above the center of a large, What is the charge per unit area on the plastic sheet
Scientists have recently shown that a sample of cocaine can be traced to its country of origin by measuring the ration of carbon-13 to nitrogen-15 (both naturally occuring, stable nuclides) in the cocaine sample.
A capacitor is used as energy storge device. the material between the plates of the capacitor has a certain resistance leading to a gradual slef-discharge. What is the fraction of the initial energy lost in the first hour
Two particles rest at a distance d apart on the edge of a table. One of the particles of mass m, falls off the edge and falls vertically. Using the other particle (still at rest) as the origin, (a) calculate the torque ? on m as a function of time..
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