A bicycle starts from rest and begins accelerating at 1.2 ms. What is the distance traveled by the bicycle after 3.3 seconds?

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m

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 is for my 8th grade science class, i really don’t understand. can someone me? , lol.