Which of the following is TRUE about moderate intensity exercise? A) An activity that gets you exercising so hard that you can only say a few words

B) An exercise intense enough to trigger lactic acid formation

C) An activity that gets you exercising and you can talk and sing easily

D) An activity that gets you exercising hard, but you are still able to talk with ease.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

0.55x745.7j and a calculator

we need to know the time interval during which the force acts. impulse of force = momentum change

prndulum needs thread, weight clock to time swings