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A long thin uniform rod lies motionless in a friction freehorizontal plane along the y-axis. It is pinned to the ground witha friction free pivot. A force F is applied at 90 degrees to thebar and at its very end. If the mass is 1kg and the force is 10N:
a) what is the initial acceleration of the center mass?
b) what force does the pin apply to the rod iniitially?
c) where could this same force be applied so that the pinexerts no force initially?
A rocket is launched a t an angle of 53.0 degrees to the horizontal at 360 km/h and moves along a straight line with a total constant acceleration of 30.0 m/s^2 for 3.00 s. obtain the maximum height reached by the rocket
A spaceship of mass 2.30×106kg is cruising at a speed of 6.00×106m/s when the antimatter reactor fails, blowing the ship into three pieces. What is the speed of the third piece
The GPS network consists of 24 satellites, each of which makes two orbits around the earth per day. Each satellite transmits a 50.0 W ( or even less) sinusoidal electromagnetic signal at two frequencies, What average intensity does a GPS receiver o..
A spring hanging from the ceiling has an unstretched length of 80 cm. What is the amplitude of the resulting oscillation
a student measures the diameter of a small cylindrical object and gets the following readings 4.32, 4.35, 4.31, 4.36, 4.37, and 4.34cm. What is the average diameter of these readings
a stell ball of mass m suspended by a thread of lenght l. the ball is then released when the thread is horizontal. at the bottom of this path, find the speed of the block just after collision
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 621 m/s. What is the horizontal distance between the end of the rifle and the bull's-eye
What is the speed of an electron with a de Broglie wavelength of 0.140nm and 0.140nm
A rectangular trough, 1.9m long, 0.50m wide, and 0.30m deep, is completely full of water. at what speed does water emerge from the hole
Compute the rms speed of a nitrogen molecule at 12.0°C and At what temperature will the rms speed be half that value
A red light flashes at position xR=4.00 m and time tR=1.00x10-9 s and a blue light flashes at xB=5.00 m and tB=8.50x10-9 s. Find the location of the two flashes in frame S'
The sensor on the torso of a crash-test dummy records the magnitude and direction of the net force acting on dummy. If the dummy is thrown forward with a force of 130-N while simultaneously being hit from the side with a force of 4500N, what force..
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