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Two plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released. One sphere has a diameter of 55.0cm , a mass of m1= 50.0g , and contains -12.0?C of charge. The other sphere has a diameter of 38.0cm , a mass ofm2 = 150.0g and contains -34.0?C of charge. Assume that no other forces are acting on them
Find the maximum speed achieved by the sphere of mass 50.0g.
Find the maximum speed achieved by sphere of mass 150.0g.
Find the maximum acceleration achieved by the sphere of mass 50.0g.
Find the maximum acceleration achieved by the sphere of mass 150.0g.
Light of intensity 2.5W/m2 passes through the pupil of one of your eyes and eventually falls on your retina. The radius of the pupil is controlled by the iris.
The loaded cab of an elevator has a mass of 3.0 x 10^3 kg and moves 145 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab.
As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are (a) perpendicular to each other? (b) Parallel to each other?
Analyse the instantaneous velocity of the car
A two-ended "rocket" that is at first stationary on a frictionless floor, with its center an origin of an x axis.
What is the coefficient of kinetic friction between the crate and the floor. what height will the stream of water strike.
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 40 degree angle from the horizontal, what is the acceleration of the ball at its maximum height? The height of the basket is 3.05 m.
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 7.1 µC, and the lengths of the sides o..
A flight attendant pulls her 72.0 N flight bag a distance of 282 m along a level airport floor at a constant speed. The force she exerts is 33.0 N at an angle of 52.0° above the horizontal.
Find the magnitude and direction of the force on a proton at x = -3.2 m, y = 0.9 m.
The largest building in the world by volume is the Boeing 747 plant in Everett, Washington. It measures approximately 634 m long, 709 yards wide, and 108 ft high. a)What is its volume in cubic feet? b) Convert your result from part A to cubic mete..
A test rocket is launched, starting on the ground, from rest, by accelerating it along an incline with constant acceleration "a", what is the position vector when the rocket is at its highest point
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