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A 3.50 kg block on a smooth tabletop is attached by a string to ahanging block of mass 2.8 k. The blocks are released from rest and allowed to move freely. (a) Find the acceleration of the blocks, and (b) find the tension in the string.
when an object is placed 57.0 from a certain converging lens it forms a real image. when the object is moved to 38.0
A 346-, uniform, 1.04- bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 506.0 without breaking, and cable B can support up to 436.0. You want to place a small weight on this bar. What is the h..
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall. what is the magnitude of the horizontal component of force produced by the wall
Dan is gliding on his skateboard at 2.00m/s . He suddenly jumps backward off the skateboard, How fast is Dan going as his feet hit the ground
when a ball rolls down a incline plane it gains speedbecause of gravitywhen rolling up it losees speed because of
"A plane, diving with constant speed at an angle of 54.0 degrees with the vertical, releases a projectile at an altitude of 770m. what is the speed of a aircraft
An object glides on a horizontal tabletop with a coefficient of kinetic friction of 0.45. If its initial velocity is 5.5 m/s, how long does it take for the object to come to rest
A sine wave with amplitude 20V is connected to a 10K resistor. Calculate the peak, rms, and average currents through the resistor. What power rating should the resistor have
The combination of an applied force and a friction force produces a constant total torque of35.3N · m on a wheel rotating about a fixed axis. Find the magnitude of the torque due to friction
A skyscraper has 550 windows that each have length 2.50m and height 2.0m when the temperature is 25C. the windows are made of single-pane glas of thickness 1/2"(1.27com) mounted in an aluminum frame.
A box of mass 50 kg is at rest on a horizontal frictionless surface. A constant horizontal force F then acts on the box and accelerates it to the right. What is the magnitude of the force
An electromagnetic wave in vacuum has an electric field amplitude of 405 V/m. Calculate the amplitude of the corresponding magnetic field
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