What kind of charge does an object have when it has given away electrons?

What is the sum of 9260 and 3240? Express your answer numerically to at least three significant figures.

A 2500-kg car falls over a cliff and converts 1000,000J of PE into KE. a. How much mechanical energy does the car have throughout the trip? b. How high is the cliff? c. With what velocity does it land?

car slows down from 20 m/s to rest in a distance of 85 m. What was its acceleration, assumed constant?

Which statement below is the most accurate description of carbon dioxide levels in the atmosphere over the past few decades? a. Carbon dioxide levels have remained the same. b. Carbon dioxide levels have decreased. c.

The stage of young adulthood in which individuals take time to find themselves is A. emerging adulthood. B. the period of role diffusion. C. the thirty-somethings. D. the trying twenties.

Potential energy and kinetic energy are created when work is done to change a position (PE) or a state of motion (KE). Ignoring friction, how does the amount of work done to make the change compare to the amount of PE or KE created? a.

The wavelength of a wave is the wavelength of a wave is how strong the wave is. equal to the speed of the wave times the wave's frequency. the distance between where the wave is emitted and where it is absorbed.

What is a carbon whip?

2 A scientific theory is

Explain the roles of Earth's own energy sources and solar energy in the rock cycle