Physics, 16.04.2020 23:18 greend0719
3. A 420-kg piano slides 3.25 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine: a. The force exerted by the man. (10pts) b. The work done on the piano by the man. (10pts) c. The work done on the piano by the force of gravity. (10pts) d. The net work done on the piano. Ignore friction. (10pts)
Answers: 1
Another question on Physics
Physics, 21.06.2019 23:20
Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?
Answers: 1
Physics, 22.06.2019 08:30
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
Answers: 1
Physics, 22.06.2019 12:10
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.
Answers: 1
Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
Answers: 2
You know the right answer?
3. A 420-kg piano slides 3.25 m down a 30° incline and is kept from accelerating by a man who is pus...
Questions
English, 24.11.2020 08:00
Mathematics, 24.11.2020 08:00
Mathematics, 24.11.2020 08:00
Social Studies, 24.11.2020 08:00
English, 24.11.2020 08:00
Advanced Placement (AP), 24.11.2020 08:00
Mathematics, 24.11.2020 08:00
Physics, 24.11.2020 08:00
Mathematics, 24.11.2020 08:00
Biology, 24.11.2020 08:00
