What is the atomic number of a sodium atom that has 11 protons and 12 nuetrons?

What kind of motion indicates a system where the net force equals zero? A. only accelerating objects B. only stationary objects C. both accelerating and stationary objects D. only objects moving with a constant positive velocity E.

A car traveling 90km/hr is 100m behind a truck traveling 50km/hr. How long will it take the car to reach the truck

Which does not affect the strength of an electromagnet?

What principle explains why lifting heavy objects is easier using ramps?

A toaster with a power rating of 1,000 watts is plugged into a household voltage of 120 volts. How much current runs through the toaster? A) 120,000 amps B) 880 amps C) 8.3 amps D) 0.120 amps

A car has an initial velocity of 11.2 m / sec. the car accelerates at 10.0 m / s2 for 8.0 seconds. what is the velocity of the car at the end of the 8.0 seconds?

You're going to open the door further by giving it a brief, hard push. first, you'll push the door at its center. then, you'll push it near the door knob. both pushes are equally hard, and last the same length of time.

In which phenomenon does Earth's magnetic field play an important part? A retaining gases around Earth to form the atmosphere B. stratifying the atmosphere into layers c. movements of tectonic plates D. spreading of the sea floor E.

Make sure that you spend extra time warming up during - O O A. spring B. cold weather O c. the afternoon O D. a heat wave

Which of these forces could speed up a baseball? A) Applied and Frictional forces B) Applied and Gravitational forces C) Frictional and Gravitational forces