Physics, 25.11.2020 03:00 hungtistic
9) Which statement is correct about the potential energy of a car moving down a ramp?
-Potential energy depends on the mass and velocity of the car.
-Potential energy remains constant because total energy is constant.
-Potential energy is highest when the car is released at the top of the ramp.
-Potential energy is highest when the car reaches the bottom of the ramp
10)In a closed system of a cannon and cannonball, which changes would both result in an increase in the kinetic energy of the cannonball when fired from the cannon?(
increase the mass of the cannon or decrease the mass of the cannonball
increase the mass of the cannon or increase the mass of the cannonball
decrease the mass of the cannon or increase the mass of the cannonball
decrease the mass of the cannon or decrease the mass of the cannonball
Answers: 3
Physics, 22.06.2019 07:00, andrespiperderc
Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points
Answers: 3
Physics, 22.06.2019 10:30, zoebtharpe
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
9) Which statement is correct about the potential energy of a car moving down a ramp?
-Potential en...
Health, 30.09.2019 22:00
Biology, 30.09.2019 22:00
Mathematics, 30.09.2019 22:00
History, 30.09.2019 22:00
Mathematics, 30.09.2019 22:00
French, 30.09.2019 22:00