Is the formation of rust on an iron nail a chemical change or a physical change? Explain your answer.

Dry air will break down if the electric field exceeds about 3.0*106v/m. part a what amount of charge can be placed on a capacitor if the area of each plate is 5.5 cm2? express your answer using two significant figures.

What minerals attracts iron nails?

A 0.0663 kg ingot of metal is heated to 241◦C and then is dropped into a beaker containing 0.395 kg of water initially at 25◦C. If the final equilibrium state of the mixed system is 27.4 ◦C, find the specific heat of the metal.

A mesocyclone is an important part in which storm system? A. Midlatitude Cyclone B. Thunderstorm C. Tropical cyclone D. Tornado

A sound wave produces what and what as it passes through matter

Density is calculated by dividing

The one island species evolved into three different species. This is called?

Find the components of vector M shown in figure 5-7

Electrical current is actually made of a. static charges. b. moving electrons. c. high or low voltage. d. resistance within a circuit.

A lizard accelerates from 2 m/s to 10 m/s in 4 seconds. what is the lizard average acceleration