Meteorologists state that a “falling” barometer indicates an approaching storm. Given a barometric pressure of 698.5 mm Hg, express the pressure in each of the following units of pressure. atm =
psi =
kPa =

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.