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A 75 kg rock climber is attached to a rope that is allowing her to hang horizontally with her feet against the wall. The tension in the rope is 825 N and the rope makes a 35 degree angle with the vertical. Determine the force exerted by the wall on the climbers feet.
A violin is tuned by adjusting the tension in the strings. OnBrian’s violin, the “A” string is tuned to aslightly lower frequency than Andrew’s, which is correctlytuned to 440.0 Hz.
The inductance of a closely wound coil is such that an emf of3.0 mV is induced when the current changes at the rate of4.6 A/s. Calculate the inductance of the coil
An airplane flies from city A and arrives at city B which is located 600 km North of city A it flies the first 300km/h, find the Average velocity of the plane
Hanging from threads are two charged balls made of pith (a very light, spongy material that comes from inside the stems of certain plants). The balls each have a mass of 0.100 g and a charge of the same magnitude q and are attracted toward each ot..
What are typical densities ?c, pressures Pc, and temperatures Tc in cores of stars and how does this depend on mass? And what processes dominate the pressure?
Two ice skaters, Daniel (mass 70.8 kilogram) and Rebecca (mass 50.3 kilogram) are practicing. Determine the change in total kinetic energy of the two skaters as a result of the collision
A 4.8-m-diameter merry-go-round is initially turning with a 4.3 s period. It slows down and stops in 16 s. Before slowing, what is the speed of a child on the rim
Consider a particle of mass m moving freely in a two dimensional rectangular box with impenetrable walls. The dimensions of the box are ax and ay. Derive the wavefunction for the particle
an astronauts pack weighs 12.1n when she is on earth but only 3.60n when she is at the surface of an asteroid.what is
A diver releases an air bubble of volume 2.0cm3from a depth of 16m below the surface of a lake, What is the volume of the bubble when it reaches just below the surface of the lake
find the magnitude and direction of the electric field that the 6.0 nc and the -3.0 nc charges together create at the
A silver wire has resistivity ? = 1.96 × 10-8 ?·m and a cross-sectional area of 5.00 mm2. What is the displacement current in the wire at that time
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