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Question: An electron has a total energy of 5.0mev and a kinetic energy of 4.5 mev.
Question 1: What is the electron's momentum (kg.m/s)?
I need help to find the electron's momentum.
A small conductive rod of length 1.3 m moves with a constant velocity v=16 m/s in a direction parallel to a long wire carrying a current of 28 A. Calculate the electric potential induced across the rod
According to recent test data, an automobile travels 0.250 mi in 19.9 s, starting from rest. The same car, when braking from 60.0 mi/h on dry pavement, stops in 146 ft. Find the acceleration of this car when it is speeding up
An 8.70 kilogram block slides with an initial speed of 1.56 m/s up a ramp inclined at an angle of 28.4o with the horizontal. Use energy conservation to obtain the distance the block slides before coming to rest
A Carnot engine whose high-temperature reservoir is at 580 K takes in 520 J of heat at this temperature in each cycle and gives up 309 J to the low-temperature reservoir.
A pitcher claims he can throw a baseball with as much momentum as a 4.00 gram bullet moving with a speed of 1200 m/s. Find what must be its speed if the pitcher's claim is valid
Two air-track gliders of equal mass are initially moving in the same direction along a straight line. What is the speed of the second glider
q1. if a thunder clap comes 1.4 s after the lightning strike how far away is the strike? calculating the wavelength and
A laser produces a 3.10-mW beam of light, consisting of photons with a wavelength of 610.1 nm. (a) How many photons are emitted by the laser each second? photons/s (b) The laser beam strikes a black surface and is absorbed. What is the change in the ..
A woman stands on a scale in a moving elevator. Her mass is 53.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. What does the scale read during the acceleration
What is the minimum work needed to push a 950kg car 810m upalong a 9.0 degree incline
The floor received most of the collision energy and the force of the ball on the floor is upwards.
A 77 person stands on the uniform ladder 4.0 long, that weighs 100. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only the normal force.
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