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Consider a simple pendulum with L = 2.4 m and m = 1.8 kg. Suppose the mass is initially at rest at the lowest point on its trajectory when it is given an impulse such that it then has a velocity of 0.17 m/s. What is the total mechanical energy of the oscillator?
A charge of -5.0 nC is uniformly distributed around a ring of radius 1.5 m that lies in the yz plane with its center at the origin, Calculate the work done in moving the point charge to the origin
A metal container, which has a mass of 8.8 kg contains 15.1 kg of water. A 2.4-kg piece of the same metal, initially at a temperature of 180.0°C, Calculate the specific heat of the metal
A boy is on a Ferris wheel, which takes him in a vertical circle of radius 7.6 m once every 15.0 s. What is the angular speed of the Ferris wheel
Fleas have remarkable jumping ability. A 0.55mgflea, jumping straight up, would reach a height of 40cm if there were no air resistance. What is the flea's kinetic energy as it leaves the ground
A vertical spring (spring constant =175 N/m) is mounted on the floor. A 0.470-kg block is placed on top of the spring and pushed down to start it oscillating in simple harmonic motion. Obtain the frequency (in Hz) of the motion
A 12cm tall robin sits in a tree 1.500 m above a shiny lawn sphere with a diameter of 48.00 cm. How tall does the image of the robin appear as he sees his reflection? Use a ray diagram and the equations to locate and completely describe the image.
You fly your not-so-trusty Scooty Puff Pro spaceship away from the Earth along a line that con- nects the center of the Earth to the center of the Moon. How far away are you from the center of the Moon
A clothes dryer runs on 4400 W. If the dryer draws 20 A of current, what is the resistance of the dryer
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.44 m radius and is 1.8 m high. The walls are 1.0 cm thick.
A 10 m platform diver during his diving can increase his rotation rate from an initial rate of 1.2 rev/s to a maximum of 3.1 rev/s. what is his moment of inertia at his maximum rotation rate
en boxes, each 21.0 cm high and weighing 235 N, initially are all side by side on the floor. Compute the power necessary to stack the boxes
For some applications, it is important that the value of a resistance not change with temperature. For example, suppose you made a 4.60 kresistor from a carbon resistor and a Nichrome wire-wound resistor connected together so the total resistance is ..
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