Question1

A 71.0 person holds his arms so that his hands are 1.80 apart. Typically, a person's hand makes up about 1.00 of his or her body weight. For round numbers, we shall suppose that all the weight of each hand is because of the calcium in the bones, and we shall treat the hands as point charges. One mole of contains 40.18, and each atom has 20 protons and 20 electrons. Assume that only 1.50 of the positive charges in each hand was unstable by negative charge.

Question2

According to manual a certain car, an utmost torque of 65.0 Nm has to be applied while tightening the lug nuts on the vehicle. If you use a wrench of length 0.330 m and you apply the force at the end of the wrench at an angle of 75 degrees with respect to a line going from the lug nut during the end of the handle, what is magnitude of the greatest force you can exert on the handle without greater than the recommendation?