Physics Answers

Evidence that support law of definite proportion in dalton theory

the speed of an ant was measured to be v=3.05

A frog has fallen into a pit that is 30m deep.Each day the frog climbs 3m, but falls back 2m at night.How many days does it take for him to escape?

A 25.0L tank contains 2.0kg of neon gas with a pressure of 98.0 atm at 28 degrees celcius. How many kilograms of oxygen can fill the tank under the same pressure and temperature?

Boat A moves with constant velocity of 6m/s. starting from position down. Fine the angle in order for the projectile to hit the boat 5 seconds after starting, under the conditions given. How high is the hill above the water?

determine the sea level specific weight in lbf/cubic feet of liquid of density of 1.75 per cubic feet

a 40 m x 20 m swimming pool is filled with water t a depth of 2.8m, determine the heat in kj required to raise the temperature of the water in the pool from 12degree C to 29 degree C

a fluid has mass of 8kg and occupies a volume of 1.5m^3 the pressure of 101.3 kpa. if the specific internal energy is 1800 kj per kg, determine the total enthalpy in mj

What is the coefficient of kinetic friction between the 100 N and 39 ⁰

a fluid with a vapor 0.4 pascal and the specific gravity of 14 is used in a barometer. the fluids column height is 0.8m.find the atmospheric pressure in kpa