Physics, 02.12.2020 07:10 cuppykittyy

7. What is the law of inertia for rotation? 11. Which will have the greater acceleration rolling down an incline --a large ball or a small ball?

12. Which will have the greater acceleration rolling down an incline -- a hoop or a solid disk?

19. if a skater who is spinning hold her arms in so as to reduce her rotational inertia to have, by how much will her rate of spin increase?

27. if you walk the long at the top of a fence, why would folding your arms out help you to Balance?

29. The most popular gyroscope around is a frisbee flying disc. What is one function, besides being a place for gripping and catching, of it's somewhat sicker curved rim?

30. consider two rotating bicycle wheels, one filled with air and the other filled with water. which would be more difficult to stop rotating? explain.

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 15:00

Using software, a simulation of a javelin being thrown both on earth and on the moon is created. in both cases, the velocity and angle of projection are kept the same. on earth, the javelin covers a distance y. what distance would it cover on the moon? (the moon’s gravity is about 1/6th that of earth.) a. 6y b. 6/y c. y/6 d. (y+6)2

Answers: 3

Answer

Physics, 22.06.2019 15:20

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Answers: 3

Answer

Physics, 22.06.2019 17:40

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.

Answers: 1

Answer

Physics, 22.06.2019 18:30

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

Answers: 1

Answer

You know the right answer?

7. What is the law of inertia for rotation? 11. Which will have the greater acceleration rolling do...

Questions