NASA sent a robotic probe to the planet Mars that collected Martian dirt that had a weight of 248g when measured back on Earth. If Mars has a gravitational force of 0.38G, what would have been
the weight when it was measured on Mars? Once you have figured out that answer, convert your
units from g to mg.
94,240 mg
94.24 mg
O 0.09424 mg
O 635.89

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?