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Q. An underwater diver sees the sun 55 degrees above horizontal. How high is the sun above the horizon to a fisherman in a boat above the diver?
Q. A .100 kg meterstick is supported at its 40.0 cm mark by a string attached to the ceiling. A .700 kg mass hangs vertically from the 5.00 cm mark. A mass is attached at another mark to keep it horizontal and in rotational and translational equilibrium. If the tension is 19.6 N determine unknown mass and the point where the mass attaches to the stick.
A 0.525 kg ball starts from rest and rolls down the hill with uniform acceleration, travelling 150 m throughout the second 10.0 rm s of its motion.
A copper wire has a square cross section 2.7 on a side. The wire is 3.8 long and carries a current of 4.0 . The density of free electrons is 8.5*10^28 m^-3.
Consider N atoms confined on a surface of area A at temperature T. The atoms form a two-dimensional (2D) gas of classical, non interacting particles.
define the hazards for astronauts inside any spacecraft moving in the vicinity of a pulsar.
A 69 kg boy and a 40 kg girl use an elastic rope while engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find out the magnitude of the acceleration of the boy toward the girl.
A projectile of mass 7 kg is fired with an initial speed of 193 m/s at an angle of 16? with the horizontal. At the top of its trajectory, projectile explodes into two fragments of masses 4 kg and 3 kg.
Find out , the magnitude of the force each plate experiences due to the other plate as a function of , the potential drop across the capacitor.
The objects are then released from rest. Assuming that the particles never reach the pulley, and also that the particles do not rebound when they strike the ground.
Find out vertical and horizontal components
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.67 m above the bottom of the chute and with an initial speed of 1.97 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding a..
what the electrostatic force acts on the proton.
What is the maximum speed with which a 1350kg car can round a turn of radius 71m on a flat road if coefficient of static friction between tires and road is 0.40.
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