Calculate the electrical energy expended in a device across which the circuit voltage drops by 40.0 volts in moving a charge of 2 coulombs.

A) 20

B) 80

Strontium-85 has a half-life of 65 days. how long will it take for the radiation level of strontium-85 to drop to one-fourth of its original level?

Allows light to pass through but diffuses it. The curtain may be described as

What is one common way that a charge can accumulate on an object

You swing a bucket of water in a vertical circle of radius 1.4 m. What speed must the bucket have if it is to complete the circle without any water spilling?

A amusement park moves riders in a circle at a rate of 6.0m/s if the radius is 9.0 meters what is the acceleration of the ride

A woman pulls a crate up a rough, inclined plane at constant speed. Which one (s) of the following statements concerning this situation is (are) correct? Group of answer choices The woman does positive work in pulling the crate up the incline.

In a compression wave, particles in the medium move a. perpendicular to the direction of the wave c. in the same direction as the wave b. opposite of the direction of the wave d. in depends upon state of the medium

Every choice has a positive or negative consequence. a. True b. False

How much heat is released when a 10 gram piece of aluminum foil is taken out of the oven and cools from 50 10 c

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.