In february 1955, a paratrooper fell 380 m from an airplane without being able to open his chute but happened to land in snow, suffering only minor injuries. assume that his speed at impact was 54 m/s (terminal speed), that his mass (including gear) was 81 kg, and that the force on him from the snow was at the survivable limit of 1.2 ✕ 105 n.

Me plz i don’t know the charges on each of these

What is hidden during a lunar eclipse? isn't the moon hidden?

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?