The voyager i spacecraft has traveled farther than any other man-made object, and in august 2012 it entered into interstellar space when it was a distance of 1.8 x 10^13 m from earth.

how many hours elapse between the time a command is sent from earth and the time the command is received by voyagerwhen it entered interstellar space? express your answer using two significant figures.

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

How will the system respond to a temperature increase?