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A single pane window is 25mm thick. It measures 1.2 m by 2.5m One side of the window is 25 o C and the other side is -22 o C How much heat is lost through the window in 24 hours? Kglass = .84J/kgoC
in a velocity selector the uniform magnetic field of 1.5 t is produced by a large magnet. two parallel plates with a
A 100 ball of clay is thrown horizontally with a speed of 9m/s toward a 900 block resting on a frictionless surface. It hits the block and sticks. The clay exerts a constant force on the block during the 7 ms it takes the clay to come to a rest re..
A bottle has a mass of 28.60g when empty and 92.15gwhen filled with water. What is the specific gravity of this other fluid
A 190g ball is dropped from a height of 1.9m , bounces on a hard floor, and rebounds to a height of 1.4m. What maximum force does the floor exert on the ball
What is the velocity of the beam of electrons that go undeflected when passing during perpendicular electric and magnetic fields of magnitude 4700 V/m and 3.6×10-3 T, correspondingly.
two positive charges of 7.2 micro-coulombs are placed on a horizontal surface with a coefficient of static friction
A wooden raft has a mass of 69 kg. When empty it floats in water (density 1000 kg/m3) with 25% of its volume submerged. What mass of sand can be put on the raft
A 74 trampoline artist jumps vertically upward from the top of a platform with a speed of 5.0 m/s. How can I find how much he depresses it if there is a spring constant of 6.2*10^4.
q1. a thin horizontal copper rod is .989696 m long and has a mass of 43.3758 g.the acceleration of gravity is 9.8
Four point charges have the same magnitude of 7.60 *10^-12 C and are fixed to the corners of a square that is 2.0 cm on a side. Determine the magnitude of the net electric field that exists at the center of the square
A 2.80 \mu F capacitor is charged to 460 V and a3.75 \mu F capacitor is charged to 525 V. These capacitors are then disconnected from their batteries, andthe positive plates are now connected to each other and thenegative plates are connected to e..
A 1000kg ar accelerates from rest to 25.0m/s in 4.20 s.Ignoring frictional forces. what is the average power( inhorsepower) delivered by the engine
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