Filip is riding his skateboard and decides to coast and let the friction bring him to a stop. If he decelerates at a rate of -0.145 m/s2 for three quarters of a minute before
coming to a stop, then how fast was he initially traveling?
a
6.53 m/s
b
0.109 m/s
-6.53 m/s
d
-0.109 m/s
e
293.6 m/s
f
-293.6 m/s
Hep

The density of gold is 19.3g/cm3. what is the volume of a 13 g gold nugget? ( density: d= m/v)

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.

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.