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Find the magnitude of the total force of the traction apparatus applied to the leg, assuming ? = 20°, the weight of the leg is 19 N and the weight hanging from the traction apparatus, m, is also 19 N.
A spool of thin wire (with inner radius r = 0.50 m, outer radius R = 0.65 m, and moment of inertia I_cm = 1.1323 kg*m2) pivots on a shaft.
The electron in a hydrogen atom orbits the proton at a radius of 0.053 nm. What is the electric field due to the proton at the position of the electron
A swimmer, capable of swimming at a speed of 1.44 m/s in still water (i.e., the swimmer can swim with a speed of 1.44 m/s relative to the water), How long does it take the swimmer to cross the river
Assume that light of a single color, rather than white light, passes through two slits 0.50 mm apart, determine the light's wavelength
A 1.00-kg glider attached to a spring with a force constant 9.0 N/m oscillates on a frictionless, horizontal air track. Find the period of the glider's motion
A block of iron at 43.0°C has mass 2.30 kg. If 3.50×104 J of heat are transferred to the block, what is its resulting temperature
Three resistors {R1 = 12.0 ?, R2 = 18.0 ?, and R3 = 36.0 ?} are connected in parallel, and in turn connected to a 70.0 V source with an internal resistance of 1.00 ?. calculate the terminal potential of the source
A simple pendulum 2.0 m in length, is released at 25 degrees from the vertical. what is the speed at the bottom of the swing
q1. an object weighs 302 n in the air. when tied to a string connected to a balance and immersed in water it weighs 220
A toy train is pushed forward and released at = 2.0 with a speed of 1.5 . It rolls at a steady speed for 2.8 , then one wheel begins to stick. The train comes to a stop 5.6 from the point at which it was released. Elucidate the train's accelera..
A person with perfect pitch sits on the bus bench listening to the 442 Hz horn of an approaching car. If the person detects a frequency of 479 Hz, how fast is the car moving.
When light strikes the surface between two materials from above, the Brewster angle is 61.0°. What is the Brewster angle when the light encounters the same surface from below
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