Physics, 30.08.2020 01:01 lovexoxdivap0ifhi
Which is not an example of an external force acting on an object? (1 point)
• a meteor traveling unhindered through space
O a hockey puck striking the back of the net and coming to rest
O a billiard ball bouncing off the rail of a pool table
O a batter hitting a baseball
Answers: 3
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 17:00
How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters
Answers: 2
Physics, 22.06.2019 17:20
Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.
Answers: 1
Physics, 22.06.2019 18:00
At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?
Answers: 1
Which is not an example of an external force acting on an object? (1 point)
• a meteor traveling un...
English, 29.04.2021 18:00
Mathematics, 29.04.2021 18:00
Social Studies, 29.04.2021 18:00
Social Studies, 29.04.2021 18:00
Physics, 29.04.2021 18:00
Mathematics, 29.04.2021 18:10
Mathematics, 29.04.2021 18:10