Answers: 2
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 ΞΈ = 23Β° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is ΞΌk = 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 01:30
An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3
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Physics, 22.06.2019 05:00
At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2iβ4jβ2k. find an equation for the position vector of the particle.
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Physics, 22.06.2019 05:20
Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity
Answers: 1
A force of 20 N acts on a smaller piston of a hydraulic press with an area of ββ10 dm2. How much for...
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