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Two small charged balls have a repulsive force of 0.12N when they are separated by a distance of 0.70m. The balls are moved closer together, until the repulsive force is 0.70N. How far apart are they now? Express your answer to two significant figures and include the appropriate units.
Velocity has a magnitude and a vector. consider a boat moving initally with velocity of 30 m/s directly west. What is the change in velocity
A ball thrown into the air lands on the same horizontal level, 31 m away, and 2.6 s later. Find the magnitude of the initial velocity
An airplane flies horizontally with speed 1000km/h(280m/s) an engine falls it takes 30s to gets to the ground. neglect air resistance elucidate the airplane is 4.5km high?.
A solid sphere is released from rest on an incline. When it reaches the bottom, what fraction of its total kinetic energy is rotational
An iron bar 40 cm long is braised to a copper bar 50 cm long and of the same diameter. What is the heat flow down the rod if its cross-sectional area is 2.50 cm2
your friend gets a at tire while driving up a road with a 35.0 slope. While changing the tire he lets go of the spare and it begins to roll down the hill. How fast (m/s) is the tire moving when it hits the ..
q1. earth takes about 365 days to orbit once around the sun. mercury the innermost planet takes less than a fourth of
An object with mass m1 = 3.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley, Find the acceleration of each object and the tension in the cable
A proton with the same kinetic energy encounters the same barrier. What is the probability that the proton will tunnel through the barrier
A helicopter of mass 3770 kg can create an upward lift forceF. When empty, it can accelerate straight upward at amaximum of 1.37 m/s2. What is the mass of the cargo
During the spin cycle of your clothes washer, Find the angular displacement of the tub during a spin of 82.9 s
Squeaky the balloon has been living large (diameter = 25 m) high above Santa ana college, where T= -20 Degree C, What is the air pressure at this point
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