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A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill. The crest of the secon hill is circular, with a radius of 36m. Neglect air resistance and friction. What must be the height of the first hill so that the skier just loses cintact with the snow at the crest of the second hill?
A single strand of wire of adjustable length is wound around the circumference of a round balloon that has a diameter of 25.0 cm, what is the magnitude of the average value of the emf induced in the loop
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71 meters per second per second. Find the net downward force on the tank's flat bottom
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 25.2 m, Neglect air resistance and determine the kinetic energy of the ball at its highest point
Each of two very long, straight, parallel lines carries a positivecharge of 44.00 μC/m. The distance d betweenboth lines is 3.30 m. What is the magnitude of the electric field at a point equidistant from the lines, with adistance 2d from both lines?
You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.437 × 10-3 m3/s, At what speed does the water exit the nozzle
A 1,800-kg pile driver is used to drive a steel I-beam into the ground. calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest
Each side of an equilateral triangular plate has a length of 1.192 m. Find the distance of the plate's center of mass from the center of one side of the plate.
What should the charge (sign and magnitude) of a particle of mass 1.44 be for it to remain stationary when placed in a downward-directed electric field of magnitude 630 ? Use 9.81 for the magnitude of the acceleration due to gravity.
A rock is dropped into a deep hole and 1.6 s later the sound of striking the bottom is heard. If the speed of sound is 340 m/s, what is the depth of the hole
A plane drops a package of food to stranded caribou on an ice flow in the Artic circle. How far short of the target should it drop the package
Two balls attached to strings have the same mass and volume, but are made of different materials. Which ball exerts a greater net force on the block
A proton is initially at rest at a point where the potential is 515V. Sometime later the proton is at a point where the potential is 190V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy.
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