Astate patrol officer saw a car start from rest at a highway on-ramp. she radioed ahead to another officer 28mi along the highway. when the car reached the location of the second officer 27min later, it was clocked going 60 mi/hr. the driver of the car was given a ticket for exceeding the 60 mi/hr speed limit. why can the officer conclude that the driver exceeded the speed limit?

driving car is more speed than the speed limit because avg speed is that car is 62.22 mi/hr

Explanation:

Given data

distance = 28 mi

time = 27 min

car speed limit = 60 mi/hr

to find out

conclude that the driver exceeded the speed limit

solution

we calculate here avg speed from mean value theorem i.e

avg speed = (total distance) / (total time)

avg speed = (28 - 0) / ((27/60) - 0 )

avg speed = 62.22 mi/hr

so we can say that that driving car is more speed than the speed limit because avg speed is that car is 62.22 mi/hr

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.