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A 75.0 kg stunt man jumps from a balcony and falls 24.0 mbefore colliding with a pile of mattresses. If the mattresses arecompressed 1.15 m before he is brought to rest, what is the averageforce exerted by the mattresses on thestuntman?
If we want to have successive fringes on a screen 5.9 cm apart near the center of the pattern, where should we place the screen
You hold a 23.5-kg car tire in your hand and, standing in place, rotate the tire in a horizontal circle of radius r = 1.10 m starting from rest. What is the time required to complete three full revolutions
What is the ratio of the amplitude of the damped oscillation
An undersea research chamber is spherical with an external diameter of 5.40 m. The mass of the chamber, when occupied, is 70400 kg. It is anchored to the sea bottom by a cable.
A wire of length L is wound into a square coil with 127 turns and used in a generator that operates at 60.0 Hz, What is the length Lof the wire used to construct the coil
A 3.00 kg steel ball strikes a massive wall at 10.0 m/s at an angle of ? = 60.00 with the plane of the wall. what is the average force exerted by the wall on the ball
Ships A and B leave port together. For the next two hours, ship A travels at 40.0mph in a direction 55.0, What is the distance between the two ships two hours after they depart
The inside temperature of a house is 65 degrees F. When the temperature outside is 35 degrees F, what is the fuel consumption of the furnace
A 480HZ sound wave in 20 centigrade air propagates into the water of a swimming pool. Assume that the wave's speed in the water is 1480m/s. What is the wave's frequency in the water? What is the wave's wavelength in the water?
A block of mass is pushed up against a spring with spring constant until the spring has been compressed a distance from equilibrium. What is the work done on the block by the spring?
Each shot of the laser gun most favored by Rosa the Closer, the intrepid vigilante of the lawless 22nd century, Find the electric potential energy of the original capacitor when it is charged
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +22.2 km/s to -20.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) du..
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