Question 3 (1 point) Mr. Robertson is standing on the roof of JHSS, 14m above the ground. He throws a
ball straight up into the air.
a) State the acceleration of the ball just after it is released.

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm

Could we see a galaxy that is 20 billion light-years away?