What is the meaning of the word corrosion?

What is the role of MnO2 in a dry cell?

The molecule that traps the sun's energy is?. a. ATP b. glyceraldehyde-3-phosphate c. chloroplast d. chlorophyll

A 72 kg sled is pulled forward from rest by a snowmobile and accelerates at 2.0m/s^2 (forward) for 5.0 seconds. The force of friction acting on sled is 120 N (backwards). The total mass of a snowmobile and driver is 450 kg.

How many types of rocks are there

Scientists who study races and their origins are called A. anthropologists. B. ethnologists. C. paleontologists. D. sociologists.

If 10,000 J of work was done to raise a 225 kg box, how high was the box raised?

The density of air under ordinary conditions at 25°C is 1.19g/L. How many kilograms of air are in a room that measures 11.0ft x 11.0ft and has an 8.00 ft ceiling? 1 in. = 2.54 cm (exactly); 1L = 103cm^3

Electrons flowing into a resistor make that end A. positive with respect to the other end B. negative with respect to the other end C. higher in resistance D. extremely warm

The force of air resistance acts to oppose the motion of an object moving through the air. A ball is thrown upward and eventually returns to the ground.

The temperature of a substance during an experiment can be modeled by the function f (x) = - 7.5cos (πx30) + 31.4, where f (x) is the temperature °c and x is the number of minutes into the experiment.