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A worker uses a pulley system to raise a 24.0kg carton 16.5 m. A force of 129 N is exerted and the rope is pulled 33.0m.
1. What is the MA of the pulley system?
2. What is the efficiency of the system?
A gratign spectrometer while in a vaccum on Earth sends 500nm light off at angle 20.0 degrees in first order spectrum, find the index of refration of the mongoian atmosphere
A car accelerates uniformly from rest and reaches a speed of22.9m/s in8.95s. Assume the diameter of a tire is58.3cm. What is the final angular speed of a tire in revolutions per second
a 9.0 kg hanging weight is connected by a string over a pulley to a 5.0 kg block sliding on a flat table. if the
q1. the flywheel of an engine has a moment of inertia 2.80 rm kg cdot rm m 2 about its rotation axis. what is its
the acceleration due to gravity on mars is 3.8 ms2.a if the curiosity rover on mars drops a tool from a height of 2.25
FM station KCOM transmits simultaneously, at a frequency of 99.9 MHz, from two broadcast towers placed precisely 31.5 m apart along a north-south line. What is the wavelength of KCOM's transmissions
An explosion breaks an object into two pieces,one of which has 1.5 times the mass of the other. how much kinetic energy did each piece acquire
The bowling ball has a diameter of 20.6 {rm cm}, and the angle the stick makes with the horizontal is 30.0 {rm ^circ}. You may suppose there is no friction between the stick and the bowling ball, though friction with the floor must be taken into acco..
Please help me solve this problem: The electric motor of a model train accelerates the train from rest to 0.600 m/s in 33.0 ms. Find the average power delivered to the train
A certain LCD projector contains a single thin lens. An object 24.0 mm high is to be projected so that its image fills a screen 1.86 m high. Determine the focal length of the projection lens
An explosion occurs at the end of a pier. The sound reaches the other end of the pier by traveling through three media: air, fresh water, how much later do the second and third sounds arrive
The position of a particle moving along an x axis is given by x = 17t2 - 6.0t3, What is the maximum positive coordinate reached by the particle
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