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A ski gondola is connected to the top of a hill by a steel cable of length 660 m and diameter 1.5 cm. As the gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along the cable. It is observed that it took 17 s for the pulse to return. What is the speed of the pulse and cable tension?
An object is dropped from rest into a pit, and accelerates due to gravity at roughly 10 m/s2. How much deeper is the second pit, compared to the first pit
A heat pump removes 2000 J ofheat from the outdoors and delivers 3160 J of heat to the inside of a house. How much work does the heat pump need
In a two-slit interference pattern, the intensity at the peak of the central maximum is I_zero. I/I_zero = 0.772 if this helps Part B What is the path difference for light with a wavelength of 477 nanometers from the two slits at a point where the ph..
If a violin string is tuned to a certain note, by how many times must the tension in the string be increased if it is to emit a note of 4 times the original frequency
a merry-go-round spins without friction. the merry-go-round is a circular disk of mass m and radius r and that it is
A parallel plate capacitor of capacitance 7.2 µF has the space between the plates filled with a slab of glass with ? = 3.5. Find the capacitance after the glass is removed
A room has dimensions of 4.2 m long, 3.5 m wide, and 2.4 m high. What is the weight of the air in the room
A husband and wife take turns pulling their child in a wagon along a horizontal sidewalk. Each exerts a constant force and pulls the wagon through the same displacement. find the magnitude of the pulling force exerted by his wife
A spelunker is surveying a cave. She follows a passage 150m straight west, then 230m in a direction 45, Use a scale drawing to determine the magnitude of the fourth displacement, Determine the direction of the fourth displacement
At the moment of release, two planes have the same speed of 152 m/s, and each is carrying a tank at the same height of 2.05 km above the ground. find direction of the velocity with which the fuel tank hits the ground if it is from plane A
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.8 cm-3, and their speed is 615 km/s. Find the current density of these protons
Suppose one gallon of gasoline produces 1.09×108 J of energy, and this energy is sufficient to operate a car for 21.7 miles. how many miles could the car go on a single tablet
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