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A uniform electric field, with a magnitude of 490 N/C, is directed parallel to the positive x-axis. If the electric potential at x = 4.00 m is 1 000 V, what is the change in potential energy of a particle with a charge of + 2.60 x 10-3 C as it moves from x = 1.5 m to x = 2.8 m?
A construction worker is standing in a 2.6 meter deep hole, 3.1 meter from the side of the hole. He tosses a hammer to a companion outside the hole. Determine how far from the edge of the hole does it land
Two in-phase loudspeakers are located at (x, y) coordinates (-2.5 m, +2.0 m) and (-2.5 m, -2.0 m), Determine the amplitude of the sound at the five positions on the y-axis (x = 0) with y = 0.0 m, 0.5 m, 1.5 m, and 2.0 m
An alpha particle (m = 6.7 ´ 10-27 kg, q = +3.2 ´ 10-19 C) has a speed of 20 km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle throughout this motion. Find out an electric potential difference V..
A 200g block is suspended from a vertical spring, causing the spring to strech by 20 cm, What is the speed of the block when it is 5.0cm above the equilibrium position
An archer pulls her bowstring back 0.420 m by exerting a force that increases uniformly from zero to 220 N. How much work is done in pulling the bow
Unless otherwise stated, all objects are located near the Earth's surface, where = 9.8 . A hockey puck with a weight of 1.0 is sliding freely across a section of very smooth (frictionless) horizontal ice. Calculate the upward force on the puck in bot..
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.9g of copper, What diameter will you choose for your wire
A 150-N sled is pulled up a 28 degree slope at a constant speed bya force of 100N. What is the coefficient of kinetic friction between sled and slope
q1. while her kid brother is on a wooden horse at the edge of a merry-go-round sheila rides her bicycle parallel to its
As you eat your way through a bag of chocolate chip cookies, you observe that each cookie is a circular disk with a diameter of 8.50 ± 0.02 \rm cm, Find the ratio of the diameter to the thickness
An artillery shell accelerates in the barrel of a gun with an acceleration of 10,000 m/s2 for 0.04 second, Find the highest the shell will go after leaving the barrel
A circular loop carries a current I = 20A, and the magnetic energy density at the loop's center is equal to 6 mJ/m^3. What is the radius of the loop
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