Which element has a - 2 charge?

Magnesium

Sulfur

Sodium

Hydrogen

What is the relationship between area, force, and pressure? what is the relationship between area, force, and pressure? pressure is inversely proportional to force and proportional to area.

You did 150 joules of work lifting a 120-newton backpack. a. How high did you lift the backpack? b. How much did the backpack weigh in pounds?

Is there a link between number of bulbs and current drawn from the power pack?

Arrange the four energy units from largest to smallest.

Charge q is 1 unit of distance away from the source charge S. Charge p is four times further away. The force exerted between S and q is ___ the force exerted between S and p. 1/4 1/16 16 times 4 times

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 625 m/s in a time of 1.10 ms (milliseconds)

Your boss at the Cut-Rate Cuckoo Clock Company wants to save money on materials. You are asked to reduce the balance wheel, which is cylindrical, dimensions to one-third their original values.

Which of the following conditions is not necessary to observe an interference pattern between two sets of waves? A) The waves must have the same wavelength. B) The waves must have a constant phase difference.

Calculate the change in velocity of 70 kg object being pulled with 1000N force force 10 s

Which reaction obeys the law of conservation of mass?