Physics, 12.11.2020 21:50 igsgymnast
Select all the correct answers.
A moving ball hits a stationary ball. The moving ball stops, and the stationary ball starts moving. In terms of force, what’s happening during this event?
Force is transferred from the moving ball to the stationary ball.
The stationary ball exerts a force on the moving ball.
The moving ball exerts a force on the stationary ball.
The moving ball runs out of force when it hits the stationary ball.
Answers: 3
Physics, 22.06.2019 14:00
Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
Physics, 22.06.2019 14:30
A58-kg boy swings a baseball bat, which causes a 0.140-kg baseball to move toward third base with a velocity of 38.0 m/s.
Answers: 2
Physics, 22.06.2019 16:30
A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
Answers: 2
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
Select all the correct answers.
A moving ball hits a stationary ball. The moving ball stops, and th...
Biology, 01.09.2019 17:30
Physics, 01.09.2019 17:30
History, 01.09.2019 17:30
Computers and Technology, 01.09.2019 17:30
Mathematics, 01.09.2019 17:30
Mathematics, 01.09.2019 17:30
Mathematics, 01.09.2019 17:30
History, 01.09.2019 17:30
Mathematics, 01.09.2019 17:30
Physics, 01.09.2019 17:30
Mathematics, 01.09.2019 17:30
Physics, 01.09.2019 17:30
Social Studies, 01.09.2019 17:30
History, 01.09.2019 17:30