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An object is 22 centimeter in front of a diverging lens that has a focal length of -13 centimeter. Find how far in front of the lens should the object be located so that the size of its image is reduced by a factor of 2.5.
A 500-kg elevator is pulled upward with a constant force of 5500 N for a distance of 50.0 m. What is the net work done on the elevator? A 4.00-kg box of fruit slides 8.0 m down a ramp, inclined at 30.0 degrees from the horizontal. If the box slides a..
Four objects are situated along the y axis as follows: a 2.13 kg object is at +3.28 m, a 3.34 kg object is at +2.40 m, Where is the center of gravity of this system
The coefficient of kinetic friction between the 2.00KG and the 3.00KG blocks in 0.300. The horizontal surface and the pulleyes are frictionless, determine the acceleration of each block
A 54kg ice skater moving at 6.4m/s glides to a stop. Assuming the ice is at 0deg C and that 50% of the heat generated byfriction is absorbed by the ice, how much ice melts
q1. an audience of 2750 fills a concert hall of volume 35000 m3. if there were no ventilation by how much would
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. Find the magnitudes of the net force acting on the electron
A football is thrown with an initial upward velocity component of 12.5m/s and a horizontal velocity component of 17.0m/s. How high does it get above the ground
The speed of a transverse wave on a string is 450 m/s, as the wavelength is 0.18 m. The amplitude of the wave is 2.00 mm. How much time is required for a particle of the string to move during a total distance of 1.0 km?
Calculate how fast must a centrifuge rotate if a particle 6.0 centimeter from the axis of rotation is to experience a centripetal acceleration of 500000 m/s2
Think about Galileo's inclined plane experiments. If a metal marble rolls 15 cm in the first unit of time, how farwill it roll in the third unit of time?
A closed cylindrical tank has a height of 0.77m. The tank is at first filled with air at a pressure of 2.00 atm. Water is pumped into the tank until the air pressure reaches 6.1 atm. The temperature is constant. Find out the height of the compress..
a 3000 kg car passes over a bump in a road that follows an arc of circle of radius 40m. what force does the road exert
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