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A ladder of negligible mass and length 5.00 m rests against a vertical wall. The ladder makes an angle of 53.1 with the ground. The wall is frictionless; the floor exerts a static friction force on the ladder. Three quarters of the way up the ladder is a handyman of weight 721 N. Find the forces of the ground and the wall on the ladder.
A 150 g ball and a 250g ball are connected by a 35{rm cm}-long, massless, rigid rod. The balls rotate about their center of mass at 150 rpm.
An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project. how big should she try to make the nucleus
While eating lunch with friends Diana spots her boyfriend having lunch, and having a good time with, How fast must Diana through the apple so that it hits her boyfriend
A ring of charge is centered at the origin in the vertical direction, Find the total electric field, E, of the ring at the point P = (2.25 m, 0.00 m)
A goose flying toward you at 11.4m/s emits a squawk, which you hear at 262Hz, Find the wavelength of the sound you hear
A 220, 45.0-cm-diameter turntable rotates on frictionless bearings at 55. A 21.0 block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
Question on a planet similar to Earth
What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 375nm
A soccer ball is kicked from the ground at an angle of ? = 60 degrees with respect to the horizontal, What is the total horizontal distance, (dm), in meters, traveled by the ball in the time, tm
A stable and highly soluble pollutant is dumped into a lake at the rate of 0.19 tonnes per day. The lake volume is 2E7 m3 and the average water flow-through rate is 8E4 m3 per day
What is a stopping distance
why is it advisable to make use of a proper restraining seat rather than hold a child on your lap.
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