Physics, 09.12.2019 03:31, lolsmaster3951
Atennis ball of mass m = 0.060 kg is traveling with a speed of 28 m/s and θ = 35 degrees. it strikes a wall and bounces off with a speed of 28 m/s. what is the magnitude of the force, in newtons, exerted on the ball if the collision time is 0.1 s? what direction was the force exerted by the wall?
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, 23.06.2019 05:30, happysage12
Herman is walking his pet fish, leo , back and forth along the canal. suppose the canal is 30 meters long and he goes up and back 25 times. a) what distance has herman walked?
Answers: 3
Atennis ball of mass m = 0.060 kg is traveling with a speed of 28 m/s and θ = 35 degrees. it strikes...
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