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A negative charge of -2.0 10-4 C and a positive charge of 9.5 10-4 C are separated by 0.24 m. What is the force between the two charges?
A mass at the end of a spring is at distance x = +2.18 cm from the equilibrium position moving with velocity v = - 20.2 cm/s. Find the amplitude of the motion in cm
A potter's wheel having a radius 0.48 m and a moment of inertia of 12.3 kg · m2 is rotating freely at 55 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
Two small metallic spheres, each of mass 0.20 g, are suspended as pendulums by light strings from a common point, what is the magnitude of the charge on each sphere
You are constructing a fiber optic cable. You wish to surround the core of the cable with a cladding material such that the critical angle to go from the core to the cladding is 73.0°
Find out an angle of the velocity vector
A flight attendant pulls her 63N flight bag a distance of 312m along a level airport floor at a constant velocity. The force she exerts is 39N at the angle of 59° above the horizontal.
A long solenoid has 130 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.80 cm perpendicular to the solenoid axis. Find the current i in the solenoid
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 430 kW-h/y, On average, how much energy does the freezer use in a single day
The earth has a radius of approximately 6400 km. how fast would it have to travel
if you had a small diameter spring and made pulses, then got a different diameter spring, with the same tension and same length of the spring, What are two ways to affect the speed of a wave
A horizontal light ray is incident on a crown glass prism as shown in the figure below where ? = 42.5°. Find the angle of deviation ? of the ray-the angle
A 24.7cm diameter coil consists of 45 turns of circular copper wire 1.0mm in diameter. A uniform magnetic field, Determine the rate at which thermal energy is produced
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