kg child plays on a swing having support ropes that are 2.10 m long. A friend pulls her back until the ropes are 41.0 ∘ from the vertical and releases her from rest. Part A What is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing? Express your answer in joules. U = nothing J Request Answer Part B How fast will she be moving at the bottom of the swing? Express your answer in meters per second. v = nothing m/s Request Answer Part C How much work does the tension in the ropes do as the child swings from the initial position to the bottom? Express your answer in joules. W = nothing J Request Answer Provide Feedback
Answers: 3
Physics, 22.06.2019 08:30
A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.
Answers: 3
Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
Physics, 23.06.2019 01:00
Use vsepr theory to predict the molecular geometry of the molecule hcn.
Answers: 3
kg child plays on a swing having support ropes that are 2.10 m long. A friend pulls her back until t...
History, 18.02.2021 23:10
History, 18.02.2021 23:10
Health, 18.02.2021 23:10
Mathematics, 18.02.2021 23:10
Chemistry, 18.02.2021 23:10
English, 18.02.2021 23:10
Mathematics, 18.02.2021 23:10
Social Studies, 18.02.2021 23:10
History, 18.02.2021 23:10
History, 18.02.2021 23:10
Mathematics, 18.02.2021 23:10
Mathematics, 18.02.2021 23:10