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Ray decides to paint the outside of his uncle's house. He uses a 4.0-m-long board supported by cables at each end to paint the second floor. The board has a mass of 21 kg. Ray (70 kg) stands 1.0 m from the left cable.
What is the force that the left cable exerts on the board?
What is the force that the right cable exerts on the board?
A stationary block of mass M - m is struck by a bullet of mass m traveling at speed v0. During the impact, obtain the speed of the block
A uniform door weighs 46-N and is 0.9 m wide and 2.5 m high. What is the magnitude of the torque because of the door's own weight about a horizontal axis perpendicular to the door and passing through a corner.
What is the beat frequency in Hz. A force of magnitude P pushes the block forward and downward as shown in the figure below. suppose the force is applied at an angle of 24.0° below the horizontal.
A rubber balloon filled with air is rubbed against a wool sweater and acquires a negative charge. The balloon is placed up against a flat wall and released. The balloon stays stuck to the wall. How is this possible if the wall is not charged in an..
A shopper pushes a cart 39 m south down one aisle and then turns 90.0° west and moves 22 m. He then makes another 90.0° turn and moves 14 m.
A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, compute the magnitude of the average force exerted on the ball?
The pressure exerted by a phonograph needle on a record is surprisingly large. what pressure is exerted on the record in N/m2
Two uniform infinite sheets of electric charge densities 41.0 C/m2 and -41.0 C/m2 intersect at a right angle
Calculate the size of the average force. plan the force vectors with their tails at the left sphere
There are two horizontal forces on the 2.0 kg box in the overhead view of the figure below but only one is shown. find the second force.
On Apollo Moon missions, the lunar module would blast off from the Moon's surface and dock with the command module in lunar orbit. Find the impact speed of the lunar module
A photon with a wavelength 4.40 scatters from an electron initially at rest. Find out the wavelength of the scattered photon when the scattered electron has its utmost kinetic energy. Kmax = 2.37*20^-14.
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