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A diverging lens with f= -26.0 cm is placed 11.0 cm behind a converging lens with f= 20.0 cm. Where will an object at infinity be focused?
A particle attached to a spring with k 50 N/m is undergoing simple harmonic motion, and its position is described by the equation x (5.7 m)cos(7.5t), What is the maximum potential energy
A potter's wheel ( a solid uniform disk) of mass 6.1 kg and radius 0.65 m spins about its central axis. Calculate the moment of inertia of the system
frictionless surface and are pushed together with a compressed spring between them. The spring has a spring constant of 154 N/m and the spring is compressed a distance of 2.5 m.
You and the friend each drive 47.0 km. You travel at 87.0 km/h; your friend travels at 98 km/h. How long will your friend wait for you at the end of trip.
A boy is attempting to swim directly across a river; he is able to swim at a speed of 0.421 m/s relative to the water. The river is 2.48 m wide and the boy ends up at 4.77 m downstream from his starting point.
q1. 0.7 kg block of ice is sliding by you on a very slippery floor at 3 ms. as it goes by you give it a kick
Assume the following parameters: projectile speed = 20 m/s, air resistance, drag coefficient = 0.5, What is the maximum range of the projectile along the horizontal in the simulation in m
A 65 kg skateboarder comes over the top of a hill at 5.0 m/s and reaches 10 m/s at the bottom. Find the total work done on the skateboarder
The work from the engine goes into an ideal refrigerator which extracts 5900.0 J of heat from its cold reservoir. Find the coefficient of performance of the ideal refrigerator
A machine is driven by a series of gears. The first gear has 12 teeth and rotates 25.0 times per minute. How many teeth does it have
A projectile is fired with an initial speed of 68.8 at an angle of 37.8 above the horizontal on a long flat firing range. Find out the maximum height reached by the projectile.
Can you please help me? In reaching her destination a backpacker walks with an average velocity of 1.37m/s due west. how far did she walk
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