A block of mass m = 1.5 kg is attached to a spring with spring constant k = 890 N/m.
The spri...
Physics, 09.03.2020 21:35, Mayrah7486
A block of mass m = 1.5 kg is attached to a spring with spring constant k = 890 N/m.
The spring is attached to a fixed wall.
The block is initially at rest on an inclined plane that is at an angle of θ = 22 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk= 0.15.
In the initial position, where the spring is compressed by a distance of d = 0.15 m, the mass is at its lowest position and the spring is compressed the maximum amount. Assume the initial gravitational energy of the block is zero.
(a) What is the block's initial mechanical energy, E0 in Joules?
(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: 2
Physics, 21.06.2019 20:30, milhai0627a
Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)
Answers: 2
Physics, 22.06.2019 06:30, kdfawesome5582
Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.
Answers: 2
Physics, 23.06.2019 00:30, asher456581
Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?
Answers: 1
Biology, 25.08.2019 08:50
Social Studies, 25.08.2019 08:50
English, 25.08.2019 08:50
English, 25.08.2019 08:50
History, 25.08.2019 08:50
Mathematics, 25.08.2019 08:50
Social Studies, 25.08.2019 08:50
Chemistry, 25.08.2019 08:50