Answers: 3
Physics, 21.06.2019 21:40
Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?
Answers: 3
Physics, 22.06.2019 10:00
Asap and show ! a 14 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 11:00
1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
Answers: 1
You can hear someone around the corner before you can see them due to reflection, diffraction, refra...
Mathematics, 11.02.2021 18:20
Mathematics, 11.02.2021 18:20
Mathematics, 11.02.2021 18:20
Biology, 11.02.2021 18:20
Mathematics, 11.02.2021 18:20
Mathematics, 11.02.2021 18:20
Mathematics, 11.02.2021 18:20
History, 11.02.2021 18:20
Mathematics, 11.02.2021 18:20
Biology, 11.02.2021 18:20