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An object with a charge of -5.4 µC and a mass of 0.038 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. (a) Find the direction and magnitude of the electric field. direction magnitude N/C (b) If the electric charge on the object is tripled while its mass remains the same, find the direction and magnitude of its acceleration.
A 1.00-kg glider attached to a spring with a force constant 25.0 N/m oscillates on a frictionless, horizontal air track. Find the period of the glider's motion
Biological muscle cells can be thought of as nanomotors that use the chemical energy of ATP to produce mechanical work. How much work is done by such proteins
Suppose that gravatational mass and inertial mass aredifferent but they are proportional to one another. Determine the acceleration of a freely falling object near thesurface of the Earth
Greenland Icecap
How large does the radius R of the dish have to be to attain electric field vector amplitude of 0.1mV/m at the receiver.
you height of your eyes above the water 1.75 m are standing 2.00 m from the edge of a 2.50 m deep swimming pool. you
An undersea research chamber is spherical with an external diameter of 5.40 m. The mass of the chamber, when occupied, is 70400 kg. It is anchored to the sea bottom by a cable.
Piano tuners tune pianos by listening to the beats between the harmonics of two different strings. When properly tuned, the note A should have a frequency of 440 Hz and the note E should be at 659 Hz.
A ball traveling with an initial momentum of 3.5 kg·m/s bounces off a wall and comes back in the opposite direction with a momentum of -3.5 kg·m/s. What is the change in momentum of the ball
A village maintains a large tank with an open top, containing water for emergencies. The water can drain from the tank through a hose of diameter 6.60 cm. The hose ends with a nozzle of diameter 2.20 cm.
suppose that the speed of light in a vacuum were one million times smaller than its actual value c 3.00 x 102 ms. the
A boy tosses a ball in the vertical direction off the side of a cliff. if the initial velcoity of the ball is 15 m/s upward, determine the maximum height sb reached by the ball
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