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A 12.0-g rifle bullet is fired by a speed of 380 m/s into a ballistic pendulum with mass 6.0 kg, suspended from a cord 70.0 cm long. Calculate (a) the velocity of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum, and (b) the vertical height during which the pendulum rises.
Two identical point charges are fixed to diagonally oppositecorners of a square that is 2.8 m on aside. Each charge is +3.5 µC. How much work is done by the electricforce as one of the charges moves to an empty corner?
q1. a ferris wheel is a vertical circular amusement ride with radius 6 m. riders sit on seats that swivel to remain
A river has a steady speed of 0.250m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. by how much would the trip be longer or shorter
An object moving with uniform acceleration has a velocity of 14.0cm/s in the positive x direction when its coordinate is 2.76cm. if its x coordinate 1.85s later is -5.00cm, what is its acceleration? in cm/s^2
A playground carousel is free to rotate about its center on frictionless bearings, and air resistance is negligible, What is the person's mass
A 93.0 kg bungee jumper jumps off a bridge and undergoes simple harmonic motion. If the period of oscillation is 11.2 s, what is the spring constant of the bungee cord
When the temperature of a coin is raised by 83.1 C°, the coin's diameter increases by 2.60 x 10-5 m. If the original diameter is 1.61 x 10-2 m, find the coefficient of linear expansion.
A 280-kg cylindrical piece of concrete pipe 1.0 m in diameter, 1.3 m long, and 3 cm thick is rolling toward you at a speed of 5 m/s. What is its approximate rotational angular momentum
A long, straight wire of length 1.5 mcarries a current of I = 6.0A. If a magnetic field of magnitude B = 1.3 T is directed perpendicular to the wire, what is the magnitude of the force on the wire?
Two friends are carrying a crate of mass 200 kg up a flight of stairs. The crate has length 1.25 m and height 0.500 m, What is the magnitude of the upper person's force
A cardboard box weighing 165 Newton is resting on a marble floor. If the coefficient of friction between cardboard and smooth marble is .20, find how much force would it take to keep the box sliding
how would you expect the voltage across a battery to compare to the voltage across the bulb with the switch open and
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