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Solve the following question:
Question I: What is the strength of an electric field that will balance the weight of a 3.8g plastic sphere that has been charged to -5.4nC?
Question II: What is the direction?
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Assume that a spacecraft lands on an asteroid and bores a hole perpendicular to its surface, what is the circumference and radius of that asteroid
A 1350 kg roller coaster car starts from rest at a height H = 21.0 m above the bottom of a 15.0 m diameter loop. determine the downward force of the rails on the car
A 626g sample of water at 90 degrees is mixed with 441g of water at 30 degrees. What is the final temp of the mixture? Presume not heat is lost to the surroundings.
A coin is located 18.0 cm to the left of aconverging lens (f = 16.0 cm). Find the separation between the lenses
Your new sports car of mass m is accelerated from rest at t=0 with constant power P along a level road. ingore any resistance effects, find the speed of your car as a function of time
An outfielder throws a 0.150 kilogram baseball at a speed of 40.0 m/s and an initial angle of 30.0o. Find the kinetic energy of the ball at highest point of its motion
A particle is moving with a certain speed. Its speed and energy are being measured with respect to Earth. determine the original speed of the particle
A 0.196-µF capacitor is connected to a 246-V rms ac source at 44.5 Hz. What is the rms current through the capacitor
calculate the final velocity of the baseball a tennis ball 57 g is rolling at a velocity of 5 ms north. it collides
A 2.0-kg object is attached to a spring (k=55.6 N/m) that hangs vertically from the ceiling. obtain the magnitude of the maximum acceleration of the object
A venturi meter is a device for measuring the speed of a fluid within a pipe. A gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0700 m2. The gas has a density of ? = 1.20 kg/m3.
a mixture of water density 1000 kgm3 and oil density 800 kgm3 is flowing through a tube of diameter 2 cm with a
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