Physics Work,Power & Energy Level: University
Laws of Motion
Water emerges from a fire hose at a a speed of 20m/s and a rate of flow of 50 L/s.
(a) Find the force with which the nozzle must be held.
(b) Find the required power of the pump motor, assuming 50 persent overall efficieiency
Physics Heat & Thermodynamics Level: University
Gas Law
We have a container of a hot ideal monatomic gas. The volume
of the container is 25 liters. The temperature of the gas is 432 degree Celsius
and its pressure is 0.858 X 10^5
Physics Heat & Thermodynamics Level: University
Gas Law750 ml of a gas at 127 degrees celsius and 800 mm Hg would occupy. What volume at STP?
Physics Heat & Thermodynamics Level: University
Gas lawHow great a temperature change occurs for a gas at 350 mm Hg and 220 L if it occupied 500 L at 0 deghrees C and 700 mm Hg?
Physics Heat & Thermodynamics Level: University
Gas LawWhat is the final temperature in celsius of a gas occupying 3.25L at 750 mm Hg if it occupied 2250 mL at 37 degrees C and 600 MM Hg?
Physics Heat & Thermodynamics Level: University
Charles LawA gas occupies 60 L at 250 degrees K and 1 atm. What is the volume at 250 degrees C and 1.5 atm?
Physics Heat & Thermodynamics Level: University
Buyles LawWhat is the volume of a gas at 275 mm Hg if it occupied 750 mL at 1000 mm Hg?
Physics Modern Physics Level: University
Theory of relativityA rectangular billboard in space has the dimensions 10 meters by 20 meters. How fast and in what direction with respect to the billboard would a spacee traveler have to pass for the billboard to appear square?
Physics Modern Physics Level: University
Theory of relativityHow long would a meter stick appear if it were travelling like a properly thrown spear at 99.5 persent of the speed of light?
Physics Modern Physics Level: University
Theory of RelativityDefine a) time dilation b) Mass-Energy equivalence
Physics Force & Laws Of Motion Level: University
Relative VelocitySuppose a person riding on top of a freight car shines a searchlight beam in the direction in which the train is traveling. Compare the speed of the light beam relative to the ground when a) The train is at rest. b) the train is moving. How does the behavior of the light beam differ from the behaviour of a bullet fired in the same direction from the top of the freight car?
Physics Force & Laws Of Motion Level: University
Projectile MotionA projectile is launched upward at an angle. What should this angle be with respect to the horizontal in order for the projectile to travel the farthest distance? explain Why?
Physics Gravitation Level: University
Orbital VelocityWhat are the restrictions on the orbit of a communications satallite it is to appear motionless in the sky as viewed from any location on earth?
Physics Gravitation Level: University
Orbital VelocityWhy does the force of gravity change the speed of a satellite in an elliptical orbit?
Physics Gravitation Level: University
Many people mistakenly belive that astronauts orbit the Earth are above gravity calculate the accsleration due to gravity (g) for space shuttle territory 200 kilometers above Earths surface. Earths mass is 6 x 10 kilograms and its radius is 6.38 x 10 meters ( 6380 kilometers). your answer is what percentage of 9.8 m/s^2?
