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A 20 nC charge is moved from a point where V = 190 Volt to a point where V = -90 Volt.
1. Determine how much work is done by the force that moves the charge?
A person drives a car around a circular cloverleaf with a radius of 64 m at a uniform speed of 10 m/s. What is the acceleration of the car
protons are projected with an initial velocity v0 = 10410m/s into a region where a uniform electric field E = 710 N/C is present. The protons are to hit the target that lies a horizontal distance of 1.27mm from the point where protons are launched..
Water in a rotating container of radius 50mm is 30 mm lower in the center than at the edge. Find the angular velocity of the container
In a certain particle accelerator a 5MeV beam of protons with a current of 0.5mA and beam radius of 1.5mm is shot at a target. How many protons hit the target in one second
Pretend you foolishly play your keyboard instrument under water where the speed of sound is 1500.0m/s
Calculate the density of a bar of gold with a length
A shoe store uses small floor-level mirrors to let customers view prospective purchases. At what angle from vertical must such a mirror be inclined so that a person standing 59 from the mirror with eyes 142 off the floor can see her feet.
An object starts from the origin and goes along the x-axis to x = 10 m in 2 s, stops for 5.5 s, and then travels at v = -4 m/s for 2.5 s
A factory worker accidentally releases a 200 kg crate that was being held at rest at the top of a ramp that is 3.9 m long, How fast is the crate moving as it reaches the bottom of the ramp
Assume that you have three long, parallel such that they form an equilateral triangle. Is there a way to arrange the wires (current directions) so that they all attract one another?
A wooden raft has a mass of 81 kg. while empty it floats in water (density 1000 kg/m3) with 64% of its volume submerged. What mass of sand can be put on the raft without it sinking.
A person who weighs 645 N is riding a 94.9 N mountain bike. what is the area of contact between each tire and the ground
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