True or false? heather and matthew walk with an average velocity of .75 m/s eastward. if it takes them 25 min to walk to the park, their displacement must be 2.0 km to the east.

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

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.