A sphere has a charge of + 12µC. How many electrons were removed from the sphere?

a. 7.5 X 1013

b. 7.5 X 1019

c. 4.8 X 1025

d. 12 x 10-6

A family leaves home at 1:00pm and arrives at their vacation spot 200 miles away at 5:00pm on the same day. What is their average speed?

A train leaves the train station at noon and travels at a constant speed of vt = 50 mi/hr on a straight track. 2 hr later, a car leaves the same train station and travels in the same direction at vc = 70 mi/hr on a road next to the train track.

In the history of astronomy, which of the following is true? a. galileo galilei was a student of tycho brahe. b. johannes kepler built one of the first observatories. c. ptolemy argued that earth was the center of the universe. d.

carlis lives 100 m away from his friend home what is his average speed if he reaches his friends home in 50s

Matter that does not conduct energy easily

Consider the uniform electric field E = (2.5 j + 3.5 k) * 103 N/C. (a) Calculate the electric flux through a circular area of radius 2.5 m that lies in the yz-plane. Give your answer in N·m2/C.

Newton's First Law says that an object at rest will stay at rest, and an object in motion will stay in motion unless: Question 1 options: Acted on by a balanced force Acted on by an unbalanced force Acted on by equal forces in opposite direction

Which statement is true for electric field lines? A. Field lines should always be parallel to the equipotential lines. B. Field lines should always be perpendicular to the equipotential lines. C. Field lines should always be parallel to each other.

What distance was an object moved by a force of 40 N if the work was 600 joules

How do I use a metric conversions chart