An astronaut has a mass of 74.0 kg. 1) how much would the astronaut weigh on mars where surface gravity is 38.0% of that on earth? (express your answer to three significant figures.)

If you put a object in front of the mirror why does it appear the opposite way

When combustion reactions occur inside a rocket's engine, a lot of heat and pressure are released. the pressure gradient is much larger inside the rocket than outside, which causes the gaseous products to rush out of the rocket.

The plot of velocity versus time is a horizantal line between, (0, 4), and (5, 4). Time is measures in seconds and velocity in meters per second. What is the position at t=5 s if the position at t=0 was 6 m?

216 joules of energy is required to raise the temperature of aluminium from 15 degrees Celsius to 35 degrees Celsius. Calculate the mass of aluminium. Note : the specific heat capacity of aluminium is 9.2 X 10^2

Rank the following in terms of increasing inertia: a. A 10,000 kg train car at rest b. A 100 kg person running at 5 m/s c. A 1200 kg car going 15 m/s d. A 15 kg meteor going at a speed of 1000 m/s

A car skids to a stop. What happens to its kinetic energy? a) It turns into thermal energy. b) It disappears without a trace. c) It turns into potential energy of the tires. d) nothing: the car still has it, but it is just inactive

A-3.07 μC charge is placed at the center of a conducting spherical shell, and a total charge of + 7.25 μC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.

When potential energy and kinetic energy are added, it creates: a. chemical energy c. mechanical energy b. thermal energy d. electromagnetic energy?

1. A good way to spend a mini-vacation is to A. try an activity you're interested in learning. B. stick to your daily routine. C. use the time to reach a plateau period. D. do as much as possible in the time you have.

List two instances in life in which you could benefit from using a GPS unit