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1. You throw a ball from the top of a 50 m high building at 12 m/s upward. The ball misses the building on the way down. The mass of the ball is 2 kg.
a. Using energy considerations, how high does the ball go?
b. Using energy considerations, what is the magnitude of the velocity just as it strikes the ground?
c. What is the work done by the force of gravity on the ball while the ball is travelling upward?
d. What is the total work done by the force of gravity on the ball?
A semicircle of radius a is in the first and second quadrants, What is the direction of the net electric field at the origin produced by this distribution of charge (+x,-x,+y,-y direction)
A sinusoidal voltage ?v = (85 V) sin (200t) is applied to a series RLC circuit with L = 40 mH, C = 145 ?F, and R = 30 ?. What is the impedance of the circuit
q1. a ball tied to the end of the string is swung in a vertical arc of radius r under the action of gravity. what would
Two slits with a separation of 8.5 x 10^(-5) m create an interference pattern on a screen 2.3 m away. find the wavelength of the light used in the experiment
An automobile transmission has 175 hp of power entering from the engine, 167 hp leaving to the wheels, while losing 5000 Btu/hr to the surroundings as heat.
a particle moving in a straight line with constant accelaration is having initial velocity of 10 ms. after some time
Two wires are identical, except that one is aluminium and one is gold. The aluminium wire has a resistance of 0.18. What is resistance of the gold wire.
What is the electric field at 9.4 cm from the central axis. What is the overall magnification of microscope.
A playground carousel is rotating counterclockwise about its center on frictionless bearings. Find the final angular speed of the carousel
A 56.6-g ice cube is initially at 0.0°C, Find the change in entropy of the cube after it melts completely at 0.0°C
the amusement park ride is going to rotate passengers around a vertical axis such that the supporting cables make a theta= 30 degree angle which vertical. Find the needed rate of rotation of the ride
If 100 gpm are flowing in the piping system below, and Gauge 1 reads 120psi and Gauge2 reads 94psi, how much pressure in psi is lost to friction
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