What would be a correct unit of measurement for velocity

A cannonball was launched by a cannon. The function H (t) = -t2+100t+100 describes the position of the cannonball t seconds after it was launched and the height H is in metres. How long did it take for the cannonball to reach its maximum height?

How are bacteria, a rose and a elephant alike

Which of the following is a quemical property?

the same chemistry student has a weight of 155lbs what is the student weight in grams? (16 oz = 1 lb, 1 oz = 28.34g)

How many moles of CO2 are produced when 35.0 moles of c2h2 react completely

Smoke fiilling up a room is diffusion or not

What is the independent and dependent variable for a dry ice experiment

a substance that undergoes a physical change like melting is still the same substance is it true or false

What is a polar molecule

A mixture of He He, N 2 N2, and Ar Ar has a pressure of 22.1 22.1 atm at 28.0 28.0 °C. If the partial pressure of He He is 2475 2475 torr and that of Ar Ar is 1049 1049 mm Hg, what is the partial pressure of N 2 N2?