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The drawing shows a rectangular piece of wood. The forcesapplied to corners B and D have the same magnitude of 12 N and aredirected parallel to the long and short sides of the rectangle. Thelong side of the rectangle is twice as long as the short side. Anaxis of rotation is shown perpendicular to the plane of therectangle at its center. A third force (not shown in the drawing)is applied to corner A, directed along the short side of therectangle (either toward B or away from B), such that the piece ofwood is at equilibrium. Find the magnitude and direction of theforce applied to corner A.
A laser produces a cylindrical beam of light of wavelength 400nm. The average energy in a 2m length of the beam is 5*10^-8J. What is the average power output of the laser
You walk 100 m to the north, and then you turn 70degrees to your right and then walk another 50 m. What is the magnitude of your total displacement
A 9.0 V battery and three resistors are all connected in series. What is the potential difference across the third resistor
A block of mass m = 2.0 kg is dropped from height h = 90 cm onto a spring of spring constant k = 1960 N/m. Find the maximum distance the spring is compressed
Three resistors of resistance 2 ?, 3 ? and 4 ? are connected in series with a 10 V battery. In which resistor is the greatest power dissipated
Now the gymnast (not holding any additional mass) walks directly above the right support. What is the force the left support exerts on the beam
At a certain time an object's position was observed to be 10 meters due west. 4 seconds later the position was observed to be 5 meters due east
At the equilibrium position, the piston is situated at the hight l0 from the bottom of the cylinder. The pressure outside of the cylinder is P0, the cross section of the cylinder and the piston is S.
An ambulance with a siren emitting a whine at 1200 Hz overtakes and passes a cyclist pedaling a bike at 2.44 m/s, How fast is the ambulance moving
an automobile wheel and tire having a diameter of 93.7 cm and a mass of 43.9 kg is bolted to a test machine. the center
While driving north at 25 m/s during a rainstorm you notice that the rain makes an angle of 38 with the vertical. find the speed of the raindrops relative to the ground
q1. clarify how einsteins contribution to understanding the force between the earth and the moon differed from newtons.
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