A sodium ion has 11 protons and 10 electrons. what is its charge?

1. A student bicycled 12 kilometers east in 2 hours. What was the student's average velocity during the trip?

Which two elements have similar characteristics? A: neon and fluorine B: chlorine and sulfur C: fluorine and chlorine D: oxygen and chlorine E: argon and fluorine

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.148 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 15.

Why is a silver spoon a good conductor

The average deviation describes the precision of the results. Does the precision indicate that the equilibrium constant is indeed a ""constant"" for this reaction? Explain.

How does gravity influence our annual calendar?

A 0.500 kg block is sitting on a horizontal, frictionless surface. The block is connected to a horizontal spring with a force constant of 124 N/m. The other end of the horizontal spring rests against a wall. When a 100.

The velocity of waves in a ripple tank of a particular depth of water is 20 centimeters per second, and standing waves are produced with nodes spaced 2.0 centimeters apart. what is the frequency of the wave generator?

If a wave is generated in a Slinky and the wave hits a wall, the reflected wave will be

While spinning in a centrifuge a 70.0 KG astronaut experiences an acceleration of 2.00g, or twice the acceleration due to gravity on the earth. What is the centripetal force acting on her? A.) 6.86*10^3N B.) 1.37*10^3N C.) 1.40*10^2N D.) 3.46*10^4N