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For a certain block on a spring, the block's displacementx = X sin() and its velocity v = X cos(), with X = 0.57 m. If the block has a mass of 0.19kg and the spring constant is 55 N/m, calculate the total energywhen = 44°.
A disk-shaped merry-go-round of radius 2.99 and mass 170 rotates freely with an angular speed of 0.623. Calculate the final kinetic energy for this system
Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 2.4 cm, and the radius of the nozzle is 0.56 cm. determine the absolute pressure of the water in the pipe
A pendulum consists of a mass m = 0.080 kg hanging from a flexible string of length L. The string is very thin, very light, and doesn't stretch much, Find the period of the same pendulum on the moon's surface
A 2500lb car collides with a 25,000 lb truck. What force is exerted on the car by the truck
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 7.96 mm. The nozzle shoots out water moving at 25.5 m/s. What is the volume flow rate
A 420-g ball is attached to one end of a horizontal cord of length L = 2 m and the other end is fixed, what will be its speed at the lowest point of its path
The temperature inside a house is 25 degree C while the temperature outside is 10 degree C. Approximately how much energy is radiated per second
A block of material has a mass of 80 kg and a volume of 4.1 10-2 m3. How much heat must be added to the block in order to increase its volume by 1.0 10-5 m3
A river of width L moves uniformly with speed v.A canoe is to be paddled at a constant speed c with respect to the river. what is the round trip time
A charge of -2.205%u03BCC is located at (2.630m , 4.253m ), and a charge of 1.765%u03BCC is located at (-2.793m , 0). Find the electric potential at the origin
A simple loop circuit contains an inductor with inductance 2.45×10?2 H and a capacitor. what is the maximum current through the circuit
suppose that a 70.0kg box is pulled by 400N firce at an angle of 30 degree to the horizontal. The coefficient of sliding friction is 0.500. find the acceleration of the box
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