Which element combines chemically with sodium to form ordinary table salt? A) aluminum B) argon C) carbon D) chlorine

An athlete runs a 100 m race in 10 seconds against a friction force of 100N. How do I work out his power output?

How does a solenoid convert energy from one form to another?

7. Which of the following is NOT always true about a synthesis reaction! a. One product is formed. b. There is only one reactant. c. The general formula is A + B → C. d. A reactant might be a compound, or it might be an element.

An interstate highway loop meets the primary route at both ends. the first digit of its route number is always

Two loops of wire are arranged so that a changing current in one, the primary, will induce a current in the other, the secondary. The secondary loop has twice as many turns as the primary loop. As long as the current in the primary is steady at 3.

What os the term for the smallest bit into which chemical substance can be divided and still have the properties of that substance A : eletron B:molecule c:atom D:ion

How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57*10-21 newtons?

If you could see the electric field coming off a proton you would notice that electric field lines are

We wrap a light, nonstretching cable around a 10.0 kg kg solid cylinder with diameter of 38.0 cm cm. The cylinder rotates with negligible friction about a stationary horizontal axis. We tie the free end of the cable to a 14.

A 0.5kg baseball experiences a 10N force for a duration of 0.1s. What is the change in velocity of the baseball