Which object has a greater velocity, a ball rolling down a 3. 4 meterhill in six seconds or a fish swimming upstream and covering 5. 4 meters in 0. 4 minutes?.

Amanometer is used to measure the air pressure in a tank. the fluid used has a specific gravity of 1.25, and the differential height between the two arms of the manometer is 34 in. if the local atmospheric pressure is 12.7 psia, determine the absolute pressure in the tank for the cases of the

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87