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1) A proton is at the origin and an electon is at the point x = 0.41 nm, y = 0.36 nm. Find the electric FIELD at the proton.
2) A thin spherical shell of radius 8.0 cm carries a charge of -20 nC distributed uniformly over its surface. Find the magnitude and direction of the electric field at the following distances from the center of the hollow sphere
a) r1 = 2.0 cm (inside the sphere)
b) r2 = 15.0 cm (outside the sphere)
Consider a large parallel plate capacitor with circular plates of radius R. suppose that the electric field between the plates is increasing.
A rattlesnake can strike with the acceleration equivalent to an increase in speed from 0 to 60 mi/h in 1/2 s. If the rattlesnake's head weighs 0.33 lb, what average power does the rattlesnake generate throughout its strike.
A point charge is moved in an electric field. The potential changes from -87 V to +30 V between the initial and final position. The work done by the electric field is 156 J
How much would a 80.0 kg person weight on Mars, where the acceleration of gravity is 3.93 m/s^2, and on Earths Moon, where the acceleration of gravity is 1.63 m/s^2.
An automobile emits 20 lbs of CO2 per gallon of gasoline burned. If the U.S. burns 200 million of gallons of gasoline every year, how many billions of lbs of CO2 are emitted every year?
how much money does it cost to leave a 100 watt light bulb on for 1 hour if electricity sells for 10cents per kW-h. a) 1cent b) 8 cent c) 22 cent d) 44cent e)100 cent
Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 29.0 degrees below the horizontal.
What least number of grooves is required for a grating
Two shoppers walk from the door of mall to their car, that is 250m down a lane of cars and then turn 90 degrees to the right and walk an additional 60m what is the magnitude of the displacement of the shopper's car from mall door.
Gracie slides down a frictionless slide of length L that makes an angle (theta) with the ground. (A.) Gracie starts out at rest at the top of the slide.
What are the two main mechanisms that the planet Earth uses to balance water that goes up with the water that comes down over Earth.
What are the x-component and y-component of the velocity.
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