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A spring with spring constant k=30 is compressed a distance of0.2 meters and shoots a 0.1kg block across a frictionless surfaceand up a ramp. To what height does the block rise before it slidesback down the ramp?
A 100 W light bulb has a resistance of about 12 ohms when cold (20 degrees C) and 140 ohms when hot. Estimate the temperature of the filament
Two 9.0 cm--diameter metal plates are 1.2 cm apart are charged to 12.5 nC . They are suddenly connected together by a 0.218mm, What is the maximum current in the wire
A 110 pound person climbs the benches from the bottom to the top of Sun Angel Track Stadium. Calculate the minimum amount of glucose (in grams) that would need to be oxidized
Use work and energy to calculate the stopping force on an egg ( we will model it as an spherical object) that is dropped form a height of 2m
The classical picture of the hydrogen atom has a single electron in orbit a distance 0.0529nm from the proton. Calculate the electric potential associated with the proton's electric field at this distance.
A body is vibrating with the simple hormonic motion withamplitude of 15 cm and frequency of 4 Hz copute. maximium velocuty and maximium acceleration
A string is fixed at both ends and is vibrating at 119 Hz, which is its third harmonic frequency. Determine the length of the string
A 8000-kg car is traveling at 1.7 m/s along a horizontal road when the brakes are applied. How much kinetic energy does the car lose
The left end of a long glass rod is 8.00 cm in diameter, with an index of refraction of 1.60, is ground, Find the position of the image of the arrow formed by paraxial rays incident on the concave surface
You are trying to overhear a juicy conversation, but from your distance of 15m. It sounds like only an average whisper of 20 dB. So you decide to move closer to give the conversation a sound level of 60 dB instead. How close must you come.
A 1089-kg car and a 2210-kg pickup truck approach a curve on the expressway that has a radius of 229 m. find the normal force on the car to the highway surface
A train has a mass of 5.22 ? 106 kg and is moving at 79.0 km/h. The engineer applies the brakes, What is the final speed of the train
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