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A quarterback throws the football to a stationary receiver who is 21.3 meter down the field. The football is thrown at an initial angle of 41.6 degree to the ground. The acceleration of gravity is 9.81 m/s2.
a) Find at what initial speed must the quarterback throw the ball for it to reach the receiver?
A 220 ohm resistor, 0.400 H inductor, 6.00 microF capacitor, and voltage source of amplitude 30.0 V and angular frequency 230 rad/s are connected to form an L-R-C series circuit. What is the current amplitude
A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4 m down a q = 25° incline. The sphere has a mass M = 4 kg and a radius R = 0.28 m. Illustrate what is the translationg kinetic energy
a transverse wave travels on a string in the positive x-direction. the tension in the string is 200 n and the linear
An ideal gas is brought through an isothermal compression process, what are the temperature T of the gas and the final pressure, Pf
An Earth satellite moves in a circular orbit with an orbital speed of 5200 m/s. Find the radial acceleration of the satellite in its orbit
A 10.0 kg object oscillates at the end of a vertical spring that has a spring constant of 1.90 104 N/m. Calculate the frequency of the dampened oscillation
Suppose a tank contains 626 m3 of neon (Ne) at an absolute pressure of 1.01 105 Pa. The temperature is changed from 293.2 to 293.8 K. What is the increase in the internal energy of the neon
A man on a bridge throws a rock straight down toward the water. The rock has just been released. Describe a free body diagram for the object of interest
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
Before beginning a long trip on ahot day, a driver inflates an automobile tire to a gauge pressureof 2.60atm at 300 K. what is the temperature ofthe air inside the tire
A steel ball of mass M is released from rest at point P. It follows a smooth curved rail to point Q and finally reaches point R with K.E. of 7J. The speed of the ball at point Q is 2MS-1 and the height between point P and the ground is 3m. Then find ..
The temperature of human is normally 37.0 degree Celsius. (a) at what wavelength will a human radiate the maximum radiation? (b) estimate the total power radiated by a person of medium build(assume a cylindrical human of height 1.80 meters and rad..
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