Physics, 30.07.2019 15:40 SynysterWxlf661
Scientific knowledge is both long lasting and open to change. in your own words, explain why scientific knowledge should be re-examined and re-tested from time to time. include two examples that will support your response.
Answers: 1
Physics, 21.06.2019 22:40, cookies1164
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 20:30, mdkester11
Your friend increases her force on the desk by 30n . she doesn't change the direction of her push . what happens to the net force on the desk .will the desk accelerate
Answers: 2
Scientific knowledge is both long lasting and open to change. in your own words, explain why scienti...
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