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Suppose you used an ideal pulley of the type shown in the figure to support a car engine of mass 125 kg.
The tension in this rope is 612.5 N
What force in newons must the ceiling supply, assuming you pull straight down on the rope? Neglect the pully system's mass.
Show transcribed image text Suppose you used an ideal pulley of the type shown in the figure to support a car engine of mass 125 kg. The tension in this rope is 612.5 N What force in newons must the ceiling supply, assuming you pull straight down on the rope? Neglect the pully system's mas.
Askater's body has rotational inertia 2.9kg·m2 by his fists held to his chest and 5.7 kg·m2 with arms outstretched. The skater is twirling at 3.0 rev/s while holding 2.3 kg weights in all outstretched hand; the weights are 76 cm from his rotation axi..
Consider an athlete who jumps a horizontal distance of 9m after reaching a maximum height of 1.5m. What was the takeoff speed v0 of the athlete
An 8m, 290 N uniform ladders rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.75, and the ladder makes a 50° angle with the ground. How far up the ladder can a 720 N person climb before the lad..
A bicyclist travels in a circle of radius 26.0 m at a constant speed of 9.00 m/s. The bicycle-rider mass is 84.0 kg. Calculate the magnitude of the net force on the bicycle from the road
50 g ball travelling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.51 ms, what is the average acceleration of the ball throughout this time inter..
1. two skaters each of mass m are standing a slight distance apart on a nearly frictionless horizontal surface of ice
How many square meters of PV would it take to provide 1KW(about 1/3 of the power needed per person for health and comfort)for a world population of 6 billion? If these cells werecrystalline silicon of 200 microns thick( 200x10-6),what is the minim..
question the acceleration due to gravity on the surface of earth is g. calling r the radius of earth at what distance
A transformer on a pole near a factory steps the voltage down from 3600 V (rms) to 120 V (rms). evaluate the current in the secondary
A 2.90-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.10 m down the incline in 1.20 s. Find the friction force acting on the block
A 45.0 g ball of copper has a net charge of 1.75 µC. What fraction of the copper's electrons have been removed
An ac generator with a frequency of 30.0 Hz and an rms voltage of 12.0 V is connected to a 45.5-µF capacitor, What is the maximum current in this circuit
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