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Two skaters, one with mass 65 kg and the other with mass 50 kg, stand on an ice rink holding a pole oflength 10 m and negligible mass.Starting from the ends of the pole, the skaters pull themselvesalong the pole until they meet. How far does the 50 kg skater move?
m
An 8.54kg block of ice at 0 %u2218C is sliding on a rough horizontal icehouse floor (also at 0 %u2218C) at 15.2m/s, What is the maximum amount of ice that will melt
During an eclipse, the Sun, Earth, and Moon are arranged in roughly a straight line. Calculate the percentage change in your weight when going from one type of eclipse to the other
An electron accelerated from rest through the voltage of 500V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 17cm, what is the magnitude of magnetic field.
An alpha particle has twice the charge of a beta particle. Why does the former deflect less than the later when passing between electrically charged plates, What particles make up the nucleus of an atom
A geothermal power plant is supplied with water at a well bottom temperature of 225 degrees C and a pressure of 8 MPa. The fluid flows into a flash separator maintained at 40 KPa. The turbine exit pressure is 10KPa.
A rock is thrown vertically upward with a speed of 11.0 from the roof of a building that is 40.0 above the ground. Assume free fall. What is the speed of the rock just before it strikes the ground?
A positive point charge Q is on the y axis at y = D; a negative point charge -2Q is at the point x = D, y = D. Find the potential for points on the x axis
A box of unknown mass is sliding with an initial speed vi = 5.90 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.10 m long. The coefficient of kinetic friction between the rough section of ..
A toaster uses a Nichrome heating wire. When the toaster is turnedon at 20° C, the initial current is 1.50 A. A few secondslater, the toaster warms up and the current now has a value of 1.28A.
question1on vacation your 1350 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.90 ms2.a
A 45.5-g golf ball is driven from the tee with an initial speed of 47.3 m/s and rises to a height of 30.4 m. Neglect air resistance and determine the kinetic energy of the ball at its highest point
question1an elevator is being lifted up an elevator shaft at a constant speed by a steel cable. all frictional effects
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