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The 11-kg block A and the 5-kg block B are both at a height h= 2 m above the ground when the system is released from rest.Just before hitting the ground block A is moving at a speed of3m/s. Determine (a) the amount of energy dissipated infriction by the pulley (b) the tension in each portion of the cordduring the motion.
Mass of box is 1.5kg starts with an initial velocity of 3m/s in the direction opposite ot that of the force. What is the final kinetic energy of the box
A 71.6-kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 10.0 m, Calculate the maximum acceleration experienced by the jumper
A black wood stove with surface area 4.6 \rm{ m^2} is made from cast iron 4.0 \rm mm thick. The interior wall of the stove is at 650 \rm { ^\circ C}, find how much heat the stove loses by a combination of conduction and convection in the surroundin..
To start a mower, a person must pull on a string attached to a pulley with a force of 70N. The pulley is a disc of mass 0.1kg and radius 0.1m. Calculate the angular acceleration of the pulley
A rifle can fire a 4.20-gram bullet at a speed of 965 m/s. How much work is done on the bullet
an auditorium measures 40.0m X20.0 m X 12.0 m. The density of air is 1.20 kg/m^3. find the weight of air in the room
A ship sets out to sail to a point 141km due north. An unexpected storm blows the ship to a point 138 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive an..
A laser beam of power 4.60 W and diameter 2.6 mm is directed upward on the circular face ( diameter of the face
Catapult fires an 800-kg rock with an initial velocity of 100 m/sat a 40° angle from ground. What is the magnitude of the horizontal impulse
Regarding the Earth and a cloud layer 700 m above the Earth as the "plates" of a capacitor, calculate the capacitance of the Earth-cloud layer system. What is the maximum charge the cloud can hold
A rectangular container measuring 26 cm 47 cm 59 cm is filled with water. What is the mass of this volume of water in kilograms and grams.
An electromagnetic wave with frequency 56.0 Hz travels in an insulating magnetic material that has dielectric constant 3.72, What is the speed of propagation of the wave
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