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A block of wood is held in place against a rough wall by someone pushing on it with a force directed upward at 28 degree above the horizontal. The coefficients of kinetic and static friction between the wood and wall are 0.30 and 0.55, correspondingly. The wood slides down unless the applied force has magnitude 14 Newton. Compute the mass of the block of wood?
kg
A disk of mass M and radius R spins on a horizontal axis during its center. Particle, mass m, is on the rim at the top. When it now starts to spin what is disks (a) angular speed at m's lowest point (b) force exerted with disk on m
a 900-kg car is moving at 33.3 ms. a braking force of -7548 n is applied for 2.70 s. what is the velocity of the car
two balls of the same mass areaccelerated by the different net forces such that one ball gains avelocity twice that of
q1. a dockworker applies a constant horizontal force of 79.0 to a block of ice on a smooth horizontal floor. the
At the same instant that a 2.0-kg ball is dropped from 50 m above Earth, a second ball, What is the velocity of the center-of-mass of the two-ball system 0.5 seconds after the balls are released
A Light-weight potter's wheel, having a moment of inertia of 24 kg*m^2, is spinning freely at 40.0 rpm. what is the mass of the clay
what gauge pressure must a pump produce to pump water from the bottom of the grand canyon elevation 730m to indian
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. find the temperature of the inner surface of the bottom of the pot
an electrically neutral thin square metal slab measuring 5.00 cm on a side is placed in a uniform external field that
Two earth satellites are in parallel orbits with radii 6701 km and 6700 km. Find how long will it be until they are again 1 kilometer apart
A hydrogen atom in its first excited state absorbs a photon with an energy of 59.0 eV, What is the kinetic energy of the ejected electron
A steel ball with a mass of 50.0g is dropped from a height of 2.30m onto a horizontal steel slab. The ball rebounds to a height of 1.40, Calculate the impulse delivered to the ball during the impact
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