Check the correctness of the term H equal 2 Sigma cos theta divided by r square DG

Which of the following statements are true? a. Kinematics is the science that studies forces and motion of particles and bodies. b. Speed is a vector quantity. c. The units of velocity are length divided by time. d.

Why are unpaired electrons more significant than paired electrons in terms of magnetic properties

Which of the following is NOT a way to increase energy efficiency? a. putting insulation in your home c. using public transportation b. recycling d. using low heat lightbulbs

How many types of electrical changes exist?

51 Mm is how many km?

Materials with a density__water will float in water

A 0.5 kg ball is thrown horizontally towards a wall with a speed of 10 m/s. The initial velocity is chosen to be the positive x - direction for this question.

Does heat rise or fall

Two small, positively charged spheres have a combined charge of 5.23 x 10^-5 C. If each sphere is repelled from the other by an electrostatic force of 1.00 N when the spheres are 2.

A car racer accelerates uniformly to a velocity of 135 m/s over a distance of 412 m. Determine the acceleration of the car.