All chemical reactions occur at the same rate true or false

Why does the same side of the moon always face the earth?

How much work is done in holding a 15N sack of potatos while waiting in line at the grocery store for 3 minutes

1. Which of the following is an example of a second-class lever? wheelbarrow broom crowbar shovel 2. Which of the following is an example of a first-class lever? rake nut cracker seesaw elbow joint

A positively charged glass rod attracts object x. The net charge of object x

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? (A) r^-1 (B) r (C) r^-2 (D) r^2

Two uncharged metal spheres, #1 and #2, are mounted on insulating support rods. A third metal sphere, carrying a positive charge, is then placed near #2. Now a copper wire is momentarily connected between #1 and #2 and then removed.

Which waves can travel through a vacuum? A) light waves Eliminate B) ocean waves C) sound waves D) mechanical waves

Select the statement that best describes gravity. Gravity is the force that draws objects closer to the Earth because of the positive or negative charge.

A cylindrical metal rod is 2.40 m long and 5.99 mm in diameter. The resistance between its two ends (at 20oC) is 1.38 * 10-3 Ω. (a) What is the material? (b) A round disk, 2.24 cm in diameter and 1.20 mm thick, is formed of the same material.

Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the velocity of car A exceeds the velocity of car B. Does that mean that the acceleration of car A is greater than that of car B? Explain.