With what speed do the electrons strike the screen? Hint: The kinetic energy of an electron which has been accelerated through a potential difference of 1 V has a kinetic energy equal to 1 eV.

You pour 250 g of tea into a Styrofoam cup, initially at 80? C and stir in a little sugar using a 100-g aluminum 20? C spoon and leave the spoon in the cup.

A particular planet has a moment of inertia of 8.26 * 10^ (36) kg⋅m^2 and a mass of 6.54 * 10^22 kg. Based on these values, what is the planet's radius? Hint: Because planets are the shape of a sphere, the moment of inertia is I = (2/5) mr^2.

What storm causes flash floods? Tornado Thunderstorm Hurricane

The speed of light of a ray of light traveling through a distance having an absolute index of refraction of 1.1 is?

Nikolas, the fire extinguisher, and the skateboard have a combined mass of 50 kg. What force would the fire extinguisher have to produce to propel Nikolas if he wanted to accelerate at a rate of 1.

At what temperature did the substance in the test tube into a solid?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him