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In a Millikan-type experiment, two horizontal charged plates are 2.5 cm apart. A latex sphere of 1.3x10^-15 kg remains stationary between the plates when the potential difference between the plates is 400 V. The upper plate is charged positive and the bottom is negative. What is the charge on the sphere? And how many excess elementary charges are on the sphere?
Assume a rocket ship traveling in deep space accelerates with constant acceleration of 9.81 m/s2 to give the illusion of normal gravity on the ship during flight. Find how far will the ship travel to acquire this speed
In an aortic aneurysm, a bulge forms where the walls of the aortaare weakened. If blood flowing through the aorta (radius 1.0 cm)enters an aneurysm with a radius of 3.0 cm, how much on average isthe blood pressure higher inside the aneurysm than the ..
two particles, each with mass m = 0.95 kg, are fastened to each other, and to a rotation axis at O, by two thin rods, each with length d = 5.8 cm and mass M = 1.4 kg. what is the combination's kinetic energy
A 8 kilogram block of ice, released from rest at the top of a 1.50 meter long frictionless ramp, Find what would be the speed of the ice at the bottom
A particle of 8 kg with a veloctiy of 40 m/s hits a 40 kg particle that is at rest. The collision is elastic. What are the final velocities of the particles
King Arthur's knights use a catapult to launch a rock from their vantage point on top of the castle wall, How far from the castle wall does the launched rock hit the ground
A car chases a coyote down a road ending in a sheer cliff. The car has a speed of 40 m/s and the coyote has a speed of 30 m/s. What beat frequencies do each the coyote and the driver hear
What do we call mineralsthat have the same combinations of elements, but a different arrangement of element?
Two girl scouts are sitting in a large canoe on a still lake while at summer camp. The canoe happens to be oriented with the front of the canoe pointing due north.
A parachutist of 60 kg descends at a constant speed of 4.4 m/s. What is the rate of increase of entropy of the parachute
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm, What is the weight of the bananas in newtons
Suppose you bring a slab of dielectric close to the gap among the plates of a charged capacitor, preparing to slide it among the plates. What force will you feel? What does this force tell you about the energy stored among the plates once the dielec..
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