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A shell is fired with a horizontal velocity in the positive x direction from the top of an 80 m high cliff. The shell strikes ground 1330 m from the base of the cliff. What is the time of the shell as it hits the ground? What is the final VERTICAL velocity?
A stick is resting on a concrete step with 1/4 of its length hanging over the edge. what is the magnitude of the angular acceleration of the stick at the instant shown
A large parallel plate capacitor has plate separation of 0.85 cm and plate area of 391 cm2. How much work is done on the capacitor as the plate separation is increased to 1.70 cm
A gear train is to be designed to transmit power from shaft 1 to shaft 2 with the following condition: Shaft 1 (driven by an electric motor) rotates at 100 revs min%u20131. Determine the input power required at shaft 1
q1. an audience of 2750 fills a concert hall of volume 35000 m3. if there were no ventilation by how much would
what is the velocity of plane with respect to the ground. A nonconducting sphere has radius R = 2.53 cm and uniformly distributed charge q = +6.00 fC. Take an electric potential at the sphere's center to be V0 = 0.
You are playing golf with a friend on a scenic course in the Rocky Mountains near Denver. When your friend misses an easy putt, How big was the force
A 1.90 × 102-kg sculpture hangs from a horizontal rod that serves as a pivot about which the sculpture can oscillate. How far is the pivot from the sculpture\'s center of mass
In a head-on collision, a car stops in 0.17s from a speed of 30m/s . The driver has a mass of 78kg, What force is applied to the driver by his seat belt during that fraction of a second
Steam enters at 4 MPa and 400 degrees C enters a nozzle steadily with a velocity of 60 m/s, and it leaves at 2 MPa and 300 degrees C. The inlet area of the nozzle is 50 cm^2, and the heat is being lost at a rate of 75 kJ/s. Determine the mass flow ra..
Two objects (01 and 02) have equal ammounts of electric charge Q on each of them. each object is located in the same electric field, the electric , the electric field having a magnitude of e.
An amount of ideal gas is con?ned to a sealed box at one-half atmospheric pressure, i.e., 50.65 kPa. With clever control, the volume of the box is reduced to 1/8 of its original value (without any gas leaking in or out), while the temperture is ke..
A 90 uF capacitor and a 15m H inductor are in series with a 185 O resistor, What is the resonant frequency
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