When the potential energy of a conservative system increases, the kinetic energy Lütfen birini seçin: a always increases. b. None c does not change d. always decreases. e. could decrease or increase

When heat energy transfers through a solid, what is it called? Select one: a. Convection b. Radiation c. Ambient equalization d. Conduction

I need an answer with a free body-diagram. Show all work as quickly as possible. Q: A wooden plank of negligible mass and length L = 2.8 m is used to keep in balance, horizontally, a small cube of mass 20.0 kg when applying a force F of 80.0 N at one end of the board. The distance, in meters, between the support point of the board and the position where find the cube is: a) 0.56 b) 0.80 c) 1.00 d) 1.12 e) 1.40

A block of 3 kg, initially at rest, is pushed uphill on an incline of 30 degrees over a distance d,. The pushing force is directed horizontally and has a constant magnitude of 35 N. The surface of the incline offers a constant kinetic friction (µk = 0.3). a) Make a FBD for the block and use Newton's 2nd law to find the normal force and the friction. b) Use work-energy approach to calculate how much farther the block moves uphill after we stop pushing (this distance (d,) should be expressed as a proper or improper fraction of the "pushing distance"(d,) – I am not asking for a number!!). Take as your SYSTEM: BALL+INCLINE+EARTH. Make sure to make lists of all the forces that are relevant and to calculate the work done by each of them, as seen in the lectures.