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A student is trying to push a desk of mass m = 95kg and horizontal width w = 0.8m along the floor. The coefficient of friction between the desk and the floor is ms = 0.66. The center of mass of the desk is at the geometric center of the rectangle shown.
What is the minimum force necessary to move the desk?
If the force that is applied is just barely less than the answer to the previous problem, what is the maximum height h so that the desk won't tip over?
Oil is being loaded into a barge through a 150 mm diameter pipe whose exit is at an angle ? (alpha)= 60 degrees to the horizontal. Determine the force exerted by the barge on the rope
The x position of (a) is 8.6 m. The y position of (b) is 8.68 m. The wave travels at a speed of 3.2 m/s. What is the amplitude of the wave?
A magnetic field has a magnitude of 0.0014 T, and an electric field has a magnitude of 4.2 × 103 N/C. compute the magnitude of the net force that acts on the charge
A wind turbine with a rotor diameter of 50 m is rated at Y kW at a hub height wind speed of m/s. It has a cut-in wind speed of m/s and a cut-out speed of m/s.
The gravitational force between two masses M and m separated by a distance r is 40 N. What is the new force when this distance is halved?
Two narrow slits 50 micrometers apart are illuminated with light of wavelength 500 nm . What is an angle of the m=2 bright fringe in radians? in degrees.
A photon Compton scatters off of a stationary electron at an angle of 60 °. Determine the initial wavelength of the photon
The gun on a battleship is at the surface of the water, and fires a 500 kg projectile with a muzzle velocity of 400 m/sec, What is the maximum range
solve this problem using either tabulated values from the tables or constant specific heats. Calculate the temperature of the exit stream
An air-core solenoid is attached to a 6 V battery via a switch. The switch is closed, what is the resistance and inductance of the coil
What is the terminal speed at which the bar falls? Imagine the bar remains horizontal and in contact with the rods at all times.
A professor shipwrecked on Hooligan's Island decides to build a telescope from his eyeglasses and some coconut shells. Which lens should he use as the objective
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