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A frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal. It is 1.8 meters long and 0.9 meters high. A 4 kg block is released at the top of the ramp and slides down onto a frictionless horizontal surface where it hits and sticks to another block that has a mass of 5 kg. After the blocks travel some distance, the blocks come to a rough patch that has a coefficient of friction of 0.20 between the blocks and the rough surface. How far along the rough patch do the blocks go before stopping?
A beam of unpolarized light shines on a stack of five ideal polarizers, Find the angle between the axes of each pair of adjacent polarizers
One radiator has a volume of 0.09mt³. It contains saturated vapor at a temperature of 100°C. find The total mass of vapor in the radiator
A hydraulic lift is lifting a car that weighs 13 kN. The area of the piston supporting the car is A, How far must the small piston be pushed down to raise the car a distance of 1.3 cm
The fastest land animal is the cheetah, which runs at a constant speed of 101 km/hr. The second fastest is the antelope, How far will the cheetah have travelled by this time
Two water waves meet at the same point, one having a displacement above equilibrium of 60 cm, what is the resulting displacement above equilibrium
A small but measurable current of 8.4 x 10-10 A exists in a copper wire whose diameter is 2.9 mm. calculate the current density and electron drift speed
Find the thermal conductivity of the material from which the box is made.
A dipole is located at the origin, and is composed of charged particles with charge +e and -e, separated by a distance 4 10-10 m along the y axis. The +e charge is on the -y axis. Calculate the force on a proton due to this dipole at a location ..
A circular pan of radius b = 10.10 cm has a plastic bottom and metallic side wall of height h = 2.20 cm . It is filled with solution of resistivity 2.20 ?·m. find the resistance of the conducting solution in this geometry
Consider three containers of the same volume that are thermally insulated (no heat is transferred) from each other, but are connected by thin pipes that allow gas to pass freely from one to another.
An air-filled toroidal solenoid has a mean radius of 15.1cm and a cross-sectional area of 4.95cm2, find the least number of turns that the winding must have
You have a 1200W microwave. When you put a cup of water in for 8 minutes only half evaporates. How eficient is your microwave
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