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Part I: A rotten pumpkin of mass 2.44 kg is dropped from a height of 2-m above the ground. Ignore air friction. Let the positive y-axis point down. How much momentum will the pumpkin have just before it hits? Express the answer in kg*m/s including the correct sign.
Part II: The ground exerts an average force of 300 N on the pumpkin in stopping it (no bounce). How muhc time is involved in stopping the pumpkin during the collision (in seconds)?
Geothermal heat is having another "revival". Explain how it works in a home and how much it would cost to add this to your home (determine your square footage or use an average 2000 square foot home), How many panels (size?) would you need
Two satellites are in circular orbits around a planet that has radius 9.00*10^6 m. One satellite has mass 77.0kg , What is the orbital speed of this second satellite
A meat baster consists of a squeeze bulb attached to a plastic tube. While the bulb is squeezed and free, with the open end of the tube under the surface of the basting sauce.
A person jumps from the roof of a house 3.6-m high. When he strikes the ground below, Find his velocity just before his feet strike the ground
using planck's law, Evaluate the Stefan-Boltzmann constant and Evalute the constant in the wien displacement law
A defibrillator is used during a heart attack to restore the heart to its normal beating pattern, How many electrons pass through the wires connected to the patient
A submarine dives to a depth of 333 feet in the ocean. What is the force (in pounds) acting on a hatch that has an area of 4 square feet
A uniform plank of length 5.8 m and weight 217N rests horizontally on two supports, with 1.1m of the plank hanging over the right support. To what distance x can a person who weighs 460 N walk on the overhanging part of the plank before it just beg..
A small pistol fire a 1.5g bullet at 1000 m/s. The bullet strikes a 200g wooden block resting on a horizontal frictionlessl surface, What is the speed of the bullet &block system after the bullet had been embedded in the block
In an integrated circuit, the current density in a 2.9 ??m?thick× 71 ??m?wide gold film is 7.7×105A/m2, How much charge flows through the film in 15 min
You note that your prescription for new eyeglasses is -3.75 D. What will their focal length be
A 170g mass attached to a horizontal spring oscillates at a frequency of 3.70Hz, Determine Amplitude and Phase Constant
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