Question

1. Answer these questions for number 1.

a. You need to determine the gravity on this new planet. You have a mass of 29 [lbm] that weighs 0.58 [kN] here. What is the acceleration due to gravity on this new planet? If a problem location is not specified, assume the location is the new planet and use the gravity calculated in this problem as “g”.

b. A heat recovery system (HRS) is used to conserve heat from the surroundings and supply it to a Rover for the new planet. The temperature in the area where the rover is exploring is 189 kelvins. The instrumentation in the rover must be kept at a temperature greater than −75 degrees Fahrenheit to avoid damage. What change in temperature must be achieved by the HRS, in degrees Celsius, to protect the rover instrumentation on the new planet?

c. A resupply ship is designed to use ion engines that run continuously, providing a small but constant acceleration of 0.07 yards per second squared. What is the acceleration of the supply ship in units of miles per day squared, using an appropriate metric prefix so that there are 1, 2, or 3 digits to the left of the decimal point?

d. A new compound, DrS45, is held in a 4-liter tank on the new planet. The amount of DrS45 put in the tank was 200 mol, and the molecular weight of the DrS45 is 350 grams per mole. What is the specific gravity of DrS45 on the new planet?

Answer 1