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The altitude of a hang glider is increasing at a rate of 6.80m/s. At the same time, the shadow of the glider moves along the ground at a speed of 15.5 m/s when the sun is directly overhead. Find the magnitude of the glider's velocity.
A 0.157kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. What is the total work done by the force of gravity during that time.
What is the distance between an object and its real image formed by a thin converging lens with focal length f, if the object distance is p? What is this minimum object-image distance
Jack and a friend skiing in the colorado mountain. they first see an avalanche on mountain side 1.5 miles away from them. what is the power the avalanche is producing the sound
An inflated rubber balloon is rubbed with a wool cloth till an excess of a billion electrons is on the balloon. What is the magnitude of the charge on the balloon.
A 0.170-kg piece of aluminum that has a temperature of -155° C is added to 1.5 kg of water that has a temperature of 2.5° C. determine the mass of water that has been frozen into ice
10 g of dry ice solid co2 is placed in a 10000 cm3 container and the air is quickly pumped out and the container
to determine the diameter of the sun an astronomer might sight with a transit first to one edge of the sun and then to
A pendulum has a period of 0.80s on Earth. What is its period on Mars, where an acceleration of gravity is about 0.37 that on Earth.
Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m long and 75 cm in diameter. It is tightly wound with a single layer of 1.70-mm-diameter superconducting wire.
A solenoid is constructed with a total of 1500 turns wound around a length of 25 cm. A constant current of 1.7 A flows through the solenoid. Calculate the magnetic force on the proton
A series RLC circuit with a resistance of 280? has capacitive and inductive reactances of 320? and 460? , respectively. What is the power factor of the circuit
A small metal cylinder rests on a circular turntable that is rotating at a constant speed as illustrated in the diagram (Figure 1) . The small metal cylinder has a mass of 0.20kg , the coefficient of static friction between the cylinder and the tu..
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