Aspaceship is 1600 m long when it is at rest. when it is traveling at a certain constant speed its length is measured by external observers and it is found to be 1390 m. what is the speed of the spaceship in terms of the speed of light? tries 0/20 in the kitchen of the spaceship the chef sets the oven timer for 1.95 hours to make roast beef. how much time does the roast beef spend in the oven when measured by external observers at rest?

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d

How does the entropy of steam compare to the entropy of ice?