Physics, 25.03.2020 05:51, tmanpierce
Two velcro-covered pucks slide across the ice, collide and stick to one another. Their interaction with the ice is frictionless. Puck A is moving to the right at 6 m/s. Puck B has twice the mass as the first puck and is also moving to the right, but at a slower speed of 2 m/s.
1. Kinetic energy is conserved in the collision.
a. True
b. False
2. Puck B will increase its speed after the collision.
a. True
b. False
3. Puck A will increase its speed after the collision.
a. True
b. False
4. Momentum is conserved in the collision.
a. True
b. False
Answers: 2
Physics, 22.06.2019 17:10, lesok0818
Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up
Answers: 2
Physics, 22.06.2019 18:30, yuvraj2298
Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
Answers: 2
Physics, 22.06.2019 21:30, Inrimid3619
Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.
Answers: 1
Two velcro-covered pucks slide across the ice, collide and stick to one another. Their interaction w...
History, 02.07.2020 03:01
Mathematics, 02.07.2020 03:01
History, 02.07.2020 03:01
Mathematics, 02.07.2020 03:01