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You have a ball on a wire that is twirled in a circular orbit with a radius of 3.7 m, and the centripetal force acting on the ball, that has a mass of 50 kg, is 419 N. What is the speed of the ball in orbit? Hint: this is a problem in which you must solve the force equation for the velocity.
An aluminum rod is 17.0 cm long at 20°C and has a mass of 350 g. what is the change in length of the rod
When blue light of wavelength 440 nm falls on a single slit, the first dark bands on either side of center are separated by 49.0 degrees. Determine the width of the slit
A 100g ball is thrown straight up in the air from a height of 1.5 m above the floor. what was the initial speed of the ball
In exercising, a weight lifter loses 0.152 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. find the change in the internal energy of the weight lifter
four resistors and a capacitor are connected to an 18 v battery with negligible internal resistance, calculate the net resistance of the circuit
X-rays having an energy of 250 keV undergo Compton scattering from a target. Find the Compton shift at this angle
At one point in a pipeline, the water's speed is 3 m/s and the gauge pressure is 4.00×10^4 Pa. Find the gauge pressure at a second point in the line 11 m lower than the first if the pipe diameter at the second point is twice that at the first.
Illustrate what are these accounting shenanigans? Briefly explain each. Do internet research to answer the question.
At what coordinate on the axis is the net electric field produced by particles equal to zero.
The radius of the tires on your car is 0.33m. You drive 1400 m in a straight line. What is the angular displacement of a point on the outer rim of a tire, around the center of tire, during this trip? Suppose the tire rotates in the counter clockwise ..
A portable electric heater uses 22 A of current. The manufacturer recommends that an extension cord attached to the heater, What is the smallest radius of copper wire that can be used in the extension cord
A university physics department buys 100m of string and determines its total mass to be 0.150kg. what is the required string tension
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