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A 5 kg rock is suspended by a mass less string from one end of a 6 m measuring stick. What is the mass of the measuring stick if it is balanced by a support force at the 1 m mark?Answer in units of kg.
If 52.0 cm of copper wire (diameter = 1.00mm) is formed into a circular loop and placed perpendicular to a uniform magnetic field that is increasing at a constant rate of 11.0 mT/s, at what rate is thermal energy generated in the loop?
A basketball player makes a jump shot. The 0.560-kg ball is released at a height of 1.80 m above the floor with a speed of 7.07 m/s. What is the work done on the ball by air resistance
Draw a force diagram for a baseball player who slows as he slides into the base - Write the net force equations which indicate the net force on your system in both the horizontal and vertical dimensions.
A man can clearly see an object that is 2.00 m away(or more) without using his eyeglasses. how close can an object be to the eyeglasses and still be clearly seen by the man
A child slides down a snowcovered slope that makes an angle of 20 degrees with thehorizontal. If the coefficient of kinetic friction is .085, what is the child's acceleration
A 650 kg elevator starts from rest. It moves upward for 3.50 s with stable acceleration until it reaches its cruising speed 1.75 m/s. Calculate average power of elevator motor during this period
A rigid iron cylinder contains propane gas. The cylinder and thegas are in thermal equilibrium. how many moles of propane are there in the cylinder
A simple pendulum consists of a small object of mass 3.0 kilogram hanging at the end of 2.0 meter long light string that is connected to a pivot point. Obtain the magnitude of the torque (due to the force of gravity) about this pivot point
Two steel guitar strings have the samelength. String A has a diameter of 0.50mm and is under 440.0 N oftension. Find the ratio of the wave speeds, Va/Vb, in these twostrings
On a frictionless horizontal air table, puck A (with mass 0.255 kilogram) is moving toward puck B (with mass 0.375 kilogram), Compute the change in the total kinetic energy of the system that occurs during the collision
In a very large closed tank, the absolute pressure of the air above the water is 5.22 x 105 Pascal. Compute the speed at which the water leaves the nozzle
Three equal point charges, each with charge 1.50 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.6m. What is the electric potential energy U of the system.
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