1) A car travels at 40 mph. what distance will it travel in 3 hours ? distance = × = 4 mph × 3 hours = 120 m / hour

2) An athlete sprints at 10m/s. how long does it take him to complete a 200m race?

Time = DISTANCE ÷ SPEED = =

60

Explanation:

acar travel 40 kmph 2 hours and the 60 kmph in 3 hours

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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