If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?

A 2-KG sample of metal increases in temperature by 20 C when heated on a stove for 3 minutes. Can you predict what will happen to the temperature rise of 4 kg sample of the same material when heat on the same stove for 6 minutes

If an experiment disproves a scientist's hypothesis, what should the scientist do next?

El Niño is actually good news for some parts of the world that experience a decreased chance of severe weather events. True False

Which of the following occurs at convergent plate boundaries? a. subduction zone b. island arc c. mountain formation d. all of the above

Both local and global winds are caused by what?

The small piston of a hydraulic lift has a cross-sectional of 3 00 cm2 and its large piston has a cross-sectional area of 200 cm2.

The pressure, temperature and volume of a system change differently during the process of isothermal expansion. Indicate whether each quantity increases, remains constant, or decreases.

Which of the following is true about rows of the periodic table? Atomic mass increases from left to right.

If you quadruple the temperature of a black body, by what factor will the total energy radiated per second per square meter increase?

How much work (in j) must be done to lift a stack of bricks, which has a mass of 400 kg, from the ground to a height of 3 m? (g = 10 m/s2) ?