Some one helppp!
1.If there any real machine where its efficiency is 100%?why?...
Physics, 06.03.2022 20:10 nails4life324
Some one helppp!
1.If there any real machine where its efficiency is 100%?why?
Answers: 1
Physics, 21.06.2019 18:50
How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.
Answers: 1
Physics, 21.06.2019 22:40
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 03:00
Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot
Answers: 1
Physics, 22.06.2019 05:30
What do you think car designers do if the damage caused by a crash test is too severe?
Answers: 1
Mathematics, 16.03.2020 20:52
Mathematics, 16.03.2020 20:52
Mathematics, 16.03.2020 20:52
Chemistry, 16.03.2020 20:52
Mathematics, 16.03.2020 20:52
Chemistry, 16.03.2020 20:52