In a laboratory on earth, all the air is pumped from a large tube. a feather and a steel ball are simultaneously released from rest inside the tube. what happens next?

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

How many atoms of nitrogen are in the chemical formula ni(w on

To a of 4 x hz is 1. 0. mm nm nm