ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements. In working this problem, assume the value of "g" to be 9.8 m/s2 with two (2) significant digits unless otherwise stated.
Calculate the increase in potential energy of a 60.0-kg man who climbs a ladder 10.0 meters high.

he magnitude of its velocity (i.e. its speed) increases at a constant rate. ... 2 - 3 min. constant acceleration component until the car stops. ... It is convenient to take torques about the pivot:.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation: