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A thermopane window consists of two glass panes, each 0.50 cm thick, with a 1.0 cm thick sealed layer of air in between. If the inside surface temperature is 23.0°C and the outside surface temperature is 0.0°C, determine the rate of energy transfer through 1.0 m2 of the window. Compare your answer with the rate of energy transfer through 1.0 m2 of a single 1.0 cm thick pane of glass. thermopane window J/s single pane window J/s
Compute the gravitational force between the sun (M = 1.99×1030 kg) and the planet Pluto (m = 2.50×10-3 times the mass of the earth, orbital radius r = 39.557 A.U.).
A person pulls a 26kg suitcase using a rope attached to the suitcase at an angle of 28 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.20.
A child's water pistol shoots water through a 1.0mm -diameter hole. What is the volume flow rate during the squirt
find out the magnitude of force exerted on the lower end of the boom by the hinge.
A 10.0 kg mass undergoes SHM with an amplitude of 8.0 cm, maximum acceleration of magnitude 3.16 m/s^2, What is the total mechanical energy of the system
A room with 3.0-m high ceilings has a metal plate on the floorwith V=0V and a separate metal plate on the ceiling. How high does the ball go if the ceiling voltage is 3.0*10^6 V
A worker on a scaffolding 65 ft above the ground needs to lift a 390 lb bucket of cement from the ground to a point 30 ft above the ground by pulling on the rope weighting 2 lb/ft . Set up the integral of how much work is required (just give the i..
A ball is thrown directly up from the ground with speed vsub0. At the same time, a second ball is dropped from rest from a height H, straight above the point where the first ball was thrown upward. There is no air resistance. A) Find out the time at ..
A system consists of 0.697 kg of water at 80 degrees C. A paddle wheel does 42 kJ of work stirring the water. The heat energy lost to the environment is 15 kJ. What is the final temperature of the system in degrees C?
A 36.0 g bullet moving at 478 m/s strikes a 3.7 kg bag of flour that is on ice, at rest. The bullet passes during the bag, leaving at 255 m/s. How fast is the bag moving when the bullet exits.
What is the speed of the two carts at the moment while their speeds are equal?
Two positive point charges are a fixed distance apart. the sume of their charges is Qt. what charge must each have in order to a) mazimize the electric force between them, and b) minimize it?
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