Which of the following is not true concerning warm-up exercises? a. they should be low-intensity. b. they should get progressively more intense. c. they should last 20 to 30 minutes. d. they should increase heart rate, breathing, and temperature. select the best answer from the choices provided. a b c d mark this and return save and exit

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the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

vapour or gas assuming atmospheriv pressure

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.