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The potential energy stored in the compressed springof a dart gun, with a spring constant of 66.50 N/m, is 1.040 J.Find by how much is the spring is compressed.
A 0.130 kg dart is fired straight up. Find thevertical distance the dart travels from its position when thespring is compressed to its highest position.
The same dart is now fired horizontally from aheight of 2.30 m. The dart remains in contact until the springreaches its equilibrium position. Find the horizontal velocity ofthe dart at that time.
Find the horizontal distance from the equilibriumposition at which the dart hits the ground.
a fisherman notices that wave crests pass the bow of his anchored boat every 4.0 seconds. he measures the distance
A certain type of laser emits light that has a frequency of 5.4 x10^14 Hz. The light, so, occurs as a series of short pulses, each lasting for a time of 2.7 x10-11 s.
If you were to build a pipe organ with open-tube pipes spanning the range of human hearing (20 Hz to 20 kHz), what would be the range of the lengths of pipes required
A small airplane has a mass of 2500 kg and is flying at a speed of 100. m/s at a height of 340 m above the ground. Determine the kinematic energy of the airplane while it is flying
A 105-kg water skier floating in a lake is pulled from rest to a speed of 14 m/s in a distance of 25m. What is the net force exerted on the skier, assuming his acceleration is steady.
One of the instruments on the probe has a spring (with a weight of 1.0 kg at one end) that measures the intensity of the gravitational force of the asteroid. What would be its maximum "bobbing" velocity if it were on Earth
X rays with a wavelength of 0.14nm undergo first-order diffraction from a crystal at a 73 degree angle of incidence. What is the angle of second-order diffraction
a stone is dropped into a river from a bridge 43.7 m above the water. another stone is thrown vertically down 1.57 s
two loudspeakers a and b are separated by a distance of 2.0 m. the speakers emit sound waves at a frequency of 680 hz
A 100 kg crate is being pushed across the horizontal floor by a force that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.230. What must be the magnitude of, so that the net work completed by it and the kinetic..
Two capacitors of capacitance 6.00 microFarad and 8 microfarad are connected in parallel, What is the potential difference across the 6.00-uF capacitor
An aluminum ring needs to be placed over a cylinder steel bar. At 10.00 degrees C, Find the temperature of the ring at which it fits over the bar
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