Physics, 08.04.2020 04:18 maukjackie1974
A child with a weight of 140 N swings on a playground swing attached to 2.10 m long chains. What is the gravitational potential energy (in J) of the child-earth system relative to the child's lowest position at the following times?
a. when the ropes are horizontal
b. when the ropes make a 25.0° angle with the vertical
c. when the child is at the bottom of the circular arc
Answers: 3
Physics, 21.06.2019 22:30, nuhaminbruk
Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.
Answers: 1
Physics, 22.06.2019 06:00, pinkyglitter2696
What are atoms of the same element with varying number of neutrons
Answers: 3
A child with a weight of 140 N swings on a playground swing attached to 2.10 m long chains. What is...
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