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A game booth at a carnival invites contestants to strike a softball affixed to the bottom end of a lightweight stick 1.25 m long whose opposite end is attached to a frictionless, horizontal axle in such a way that the ball and stick are able to swing around in a full circle. If the ball and stick are initially at rest and hanging straight down, what is the minimum speed the softball must have after it is struck for the contestant to win?
A heat engine utilizes a heat source at 580 degrees Celsius and has an ideal (Carnot) efficiency of 28%, what must be the temperature of the heat source
A 7.4- g piece of silver undergoes isochoric heating, By how many joules does the internal energy change
A 1.50 x 103-kg car starts from rest and accelerates uniformly to 19.5 m/s in 12.6 s. Find the average power developed by the engine
A 15.0g bullet with a speed of v=235m/s is fired into a block of wood that is initially at rest on a frictionless surface. Determine the mass of the wooden block
a assume the equation xat3bt describes the motion of a particular object with x having the dimension of length and t
A plastic straw 20.0 cm long and 3.00 mm in diameter is filled with honey. What mass of honey flows out of the straw in 1.0 s
one mole of an ideal monatomic gas is expanded adiabatically and quasi-statically from a pressure of 1172 kpa and a
What is the Right Ascension, Declination, Hour Angle, and Zenith Angle of the Sun at noon on the vernal equinox, summer solstice, autumnal equinox, and winter solstice as measured at a latitude of 40
if a car traveled at an average speed of 80 km per hour for 20 minutes and then slowed to an average speed of 50 lm per
A heat pump keeps a house warm at 72.0 degrees Fahrenheit when the outside temperature is 0 degrees Fahrenheit. How much heat is drawn in from the outside
The solid shaft in is made from brass that has an allowable shear stress = 100 MPa and a shear modulus of elasticity G = 39 GPa. what is the required diameter of the shaft
Assume that the net horizontal force is due to rolling friction only and take free-fall acceleration to be = 9.80 .What is the coefficient of rolling friction for the tire under low pressure.
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