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An alpha particle (the nucleus of a helium atom) has a mass of 6.64 multiplied by 10-27 kg and a charge of +2e. What are the magnitude and direction of the electric field that will balance the gravitational force on the particle? Please include any formulas needed and an explanation of all variables.
A garden plot must have a central planting area of length 13 m and width 8 m. There is to be a sidewalk around its edge of width w. If the total area, planting area plus sidewalk area, is 150 m^2, what is the sidewalk width w in meters.
a bartender slides a beer mug at 1.9 ms towards a customer at the end of a frictionless bar that is 1.1 m tall. the
An astronaut weighs 185 lb on earth. What is her weight on the moon, where the acceleration due to gravity is 5.28 ft/s2
A small monkey is traveling along a branch, What is the max speed of the monkey during this interval? Show all calculations
a heavy piece of machinery is raised by sliding it a distance d = 14.9 m along a plank oriented at angle ? = 25.7° to the horizontal. How high above its original position is it raised
Supporting his theory, since 2001, workers in the United States have enhancement their hours worked while tax rates have dropped. What theory or theories of motivation might describe such a change.
An egg rolls off a kitchen counter and breaks as it hits the floor. How large is the impulse that the floor exers on the egg, and how large is the force exerted on the egg by the floor when stopping it? The counter is 1.0mhigh, the mass of the egg is..
a ball is hurled straight up at a speed of 15.0m/s, leaving the hand of the thrower 3.00 m above ground. What is the total distance traveled by the ball just as it passes the window the second time
A golf ball with mass 45.90 g and diameter 42.60 mm is struck such that it moves and rotates with a frequency of 3081 rpm and has a kinetic energy of 69.58 J. What is the linear speed of the golf ball
A wheel is mounted on a stationary axle, which is nearly frictionless so that the wheel turns freely. The wheel has an inner ring with mass 5 kg, how much work do you do
A monatomic ideal gas at high temperature T in a discharge tube has a triply degenerate excited state at an energy e above the ground state, Find the ratio population of the excited state to that of the ground state
Calculate the frequency of an organ pipe with an effective length equal to 12.0 m that is closed on one side and open on the other
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