On considère le système (s) . 1) représente les forces soumises à ce solide pourqu'il soit en équilibre 2) sachant que la masse de ce solide vaut 10kg . a- détermine son poids(p) . b- determine la tension du fil (T)

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s. a. determine jay’s mass. b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

When an object is heated it contracts. a. true b. false

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above