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A proton has an initial speed of 4.6X10^5 m/s.
(a) What potential difference is required to bring the proton to rest?
(b) What potential difference is required to reduce the initial speed of the proton by a factor of 4?
(c) What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 4?
An object is placed in front of a concave mirror with a 24.1-cm radius of curvature. A real image twice the size of the object is formed. At what distance is the object from the mirror
A ladder 2.05 m long, weighing 229 N, initially lies flat on the ground. The ladder is raised to a vertical position. Compute the work done by the force lifting the ladder
A building with a weight of 5.200e+7 N is built on a concrete foundation with an area of 1300 m2, By what vertical distance does the foundation compress
The back wall of a home aquarium is a mirror that is a distance of 33.0 cm away from the front wall. The walls of the tank are negligibly thin, Calculate the apparent distance between the fish and the front wall
Runner A is initially 4.0mi west of a flagpole and is running with a constant velocity of 2.0 mi/h due east. How far are the runners from the pole when they meet
A baseball pitcher can throw a ball with a speed of 40. He is in the back of a pickup truck that is driving away from you. He throws the ball in your direction, and it floats toward you at a lazy 30. What is the speed of truck.
A car enters a 300-m radius flat curve on a rainy day when the coefficient of static friction between its tires and the road is 0.600. what is the maximum speed if the ramp is banked 30 degrees
question1an electron moves to the right with a speed of 0.82c relative to laboratory frame. a proton moves to the left
The amplitude of an oscillator decreases to 88.8 of its initial value in 20.5. What is the value of the time constant
Using energy considerations, compute the average force the beam exerts on the pile driver while the pile driver is brought to rest.
A lens with an index of refraction of 1.60 is to be coated with a material (n = 1.39) that will make the lens nonreflecting for yellow-orange light (? = 515 nm) normally incident on the lens
A stone is dropped from the roof of a building; 1.30s after that, a second stone is thrown straight down with an initial speed of 23.0m/s , How long did it take the first stone to reach the ground
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