Which of the following correctly describes voltage difference?

A. The push that causes charges to move

B. Causes charges not to move

C. Flows from low areas to high areas

D. Flows from high to low areas

Following a car accident, a person is able to walk, but she is not able to move her arms. This person most likely severed A) a lumbar nerve B) a coccygeal nerve C) a cervical nerve

Which situation involves an object that can be considered to be in free fall? A) a bungee jumper just before reaching the bottom of a jump. B) a ball at the top of its motion after being thrown straight up in the air.

If two resistors of value r are connected in series and then in parallel, what is the difference in equivalent resistance in both cases? a) 0 b) 3R/2 c) R/2 d) 2/R

A specimen of aluminum having a rectangular cross section 9.9 mm * 12.4 mm (0.3898 in. * 0.4882 in.) is pulled in tension with 35900 N (8071 lbf) force, producing only elastic deformation. The elastic modulus for aluminum is 69 GPa (or 10 * 106 psi).

The atomic mass of an element is A. The average mass of all the isotopes of the element B. A measure of the density of that element C. The mass of the most common isotope of that element D.

After creating a question and forming a hypothesis, what is the next step in the scientific method

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.

Which statements accurately describe the Doppler effect?

Describe how mass and distance affect gravitational force.

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?