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A ski gondola is connected to the top of a hill by a steel cable of length 620 and diameter 1.7 . 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 16 for the pulse to return.
A) What is the speed of the pulse?
B) What is the tension in the cable?
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.55 m and 1.04 m, respectively. Calculate the speeds of the tips of both rotors
An electron is confined in a one-dimensional box (an infinite well). Two adjacent allowed energies of the electron are 1.068 × 10-18 J and 1.352 × 10-18 J. What is the length of the box
The pulley in the illustration is a uniform disk of mass 2.8 kg and radius 0.24 m, which is free to rotate without friction. What is the acceleration of the falling block
When a train's velocity is 12{rm{ m/s}} eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0 ^circ to vertical on windows of the train.
The 3.10 kg, 34.0-cm-diameter disk is spinning at 350 rpm How much friction force should the brake apply to the rim to bring the disk to a halt in 2.20 s.
It is 150 cm from your eyes to your toes. You are standing 196 cm in front of a tall mirror. How far is it from your eyes to the image of your toes.
In the Biomedical and Physical Sciences building at MSU there are 132 steps from the ground floor to the sixth floor. Each step is 16.6 cm tall. It takes 6 minutes and 53 seconds for a person with a mass of 70.8 kg to walk all the way up.
A short, thin rod of length 2.5 cm has charge distributed uniformly along its length. What is the value of the linear charge density of the rod
A circuit has a 12 V source connected to a 5 Ohm resistor and 7 Ohm resistor in series. A current of 1 A flow through them. What is the power dissipated across the small resistor
A starship voyages to a distant planet 10 ly away. The explorers stay 1.0yr , return at the same speed, and arrive back on earth 26yr after they left. How much time has elapsed on the astronauts' chronometers
A log floats in a river with 1/5 of its volume above the water. Density of water is 1000 kg/m, how much of the volume is now above the water
Suppose a manufacturing plant has an average sound intensity level of 97.0 dB created by 25 identical machines. Find the total intensity created by all the machines
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