When two bodies are charged, the total charge before and after charging remains the same because of:

a.

quantization of charges

c.

law of induction

b.

conservation of charges

d.

Coulomb's law

How many chromosomes does an elephant's egg cell have?

Dane is holding an 8 kilogram box 2 metres above the ground. How much energy is in the box's gravitational potential energy store? Assume Dane is on Earth, where g = 10 N/kg.

Technician a says that using a pressure transducer and lab scope is a similar process to using a vacuum gauge.

In the bathroom of your house you would like to run a 360 W radio, a 60 W phone charger, a 960 W hair dryer, and three 120 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices?

If the potential across two parallel plates, separated by 1.50 cm, is 12.0 volts, what is the electric field strength in volts per meter? 1.) 4.0 * 10 2 V 2.) 1.25 * 10-1 V 3.) 8.0 * 102 V 4.) 8.0 V

A small metal block (shaded block) is released from rest at the level of the top dashed line. It either falls or slides on a frictionless incline to the level of the bottom dashed line (dotted block).

Which metal ion has the "coolest" flame color? What color is it?

Which of the following statements accurately describes a series circuit?

All of the planets stay near the ecliptic as they move on the Celestial Sphere

What replaces a cold current that sinks to the ocean floor?