This time, the pendulum is 1.55 m long and has a mass of 3.05 kg. You give it a push away from vertical so that it starts swinging with a speed of 1.27 m/s. Due to friction at the pivot point, 1.00 Joule of the pendulum s initial kinetic energy is lost as heat during the upward swing. What maximum angle will it reach, with respect to the vertical, before falling back down?     14.4 degrees     18.7 degrees     17.3 degrees     18.0 degrees

Amount of energy required to blow a bubble of radius 5 cm, (surface tension of soap is 30 x 10-² N/m) (a) (c) 1.88 J 1.88 × 10-2 J (d) 1.88 × 10 J (b) 1.88 × 10-¹ J

A spring with spring constant k = 190 N/m is suspended vertically with its upper end fixed to the ceiling and its lower end at position y = 0. A block of weight 21 N is attached to the lower end, held still for a moment, and then released. If K = the kinetic energy, ΔUg = the change (from the initial value) in the gravitational potential energy, and ΔUe = the change in the elastic potential energy... What are (j)K, (k) ΔUg, and (l) ΔUe when y = –20 cm?

This time, the pendulum is 1.51 m long and has a mass of 3.01 kg. You give it a push away from vertical so that it starts swinging with a speed of 2.25 m/s. Due to friction at the pivot point, 1.00 Joule of the pendulum s initial kinetic energy is lost as heat during the upward swing. What maximum angle will it reach, with respect to the vertical, before falling back down? 1 44.2 degrees 2 39.1 degrees 3 31.6 degrees 4 34.0 degrees

A 68.1-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then drops through a height of 1.62 m, and ends with a speed of 8.51 m/s. How much nonconservative work (in kJ) was done on the boy?     Answer______ kJ

2. A simple pendulum is suspended from the ceiling by means of a string of length of 1.82 m, Assume that there is no friction or air resistance.Suppose you were to release the pendulum from rest, starting from an angle of 42.9 degrees to the vertical. What will be the speed of the pendulum at the instant it reaches an angle of 12.9 degrees above the vertical?     0.95 m/s     4.64 m/s     2.94 m/s     3.09 m/s

A certain spring has a length of 47.6 cm when a 4.49 kg mass is hung from it and a length of 58.6 cm when a 8.23 kg mass is hung from it. What is the spring constant for this spring in N/m?

Problem 10.12 2 The maximum energy a bone can absorb without breaking is surprisingly small. Experimental data show that a leg bone of a healthy, 60 kg human can absorb about 240 J. W S X H mmand / # 3 E E D C 4 888 R F - 1 % 5 V 7 T G ▾ Part A 1 6 B From what maximum height could a 60 kg person jump and land rigidly upright on both feet without breaking their legs? Assume that all energy is absorbed by the leg bones in a rigid landing. Express your answer with the appropriate units. h= 40 Submit Previous Answers Request Answer < Return to Assignment Provide Feedback MacBook Air X Incorrect; Try Again; One attempt remaining Y H & 7 39 m U N 8 DI M ( 9 K ? MOSISO B O < дв O L P I command - { + [ = ? Review option delete

A bullet having mass of 0.002kg hits a stationary block of wood having a mass of 14kg. The coefficient of kinetic friction between the block and floor is 0.12, and the block slides 3mm on the floor as a result of impact. Compute the energy lost during the impact. Provide FBD. Thank yooou.

A rubber ball, with a mass of 40.0 grams is dropped from rest from a height of 1.20 m above the floor. It hits the floor, and then reaches a maximum height of 80.0 cm when it comes back up again. In this problem, use g = 10.0 m/s2. (a) The collision with the floor causes some mechanical energy to be lost (this energy generally ends up as thermal energy). How much mechanical energy is lost in this case? (b) What is the ball's speed, just as it leaves the floor on its way up? m/s (c) What is the magnitude of the impulse experienced by the ball for the entire time it is in contact with the floor? kg • m/s