A constant force of 3.3 N to the right acts on a 17.8 kg mass for 0.54 as.

(a) Find the final velocity of the mass if it is initially at rest.
(b) Find the final velocity of the mass if it is initially moving along the x-axis with a velocity of 1.68 m/s to the left.

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.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)