You have 8.0 hours to travel a distance of 140 km by bicycle. a-How long will it take you to travel the first half at an average speed of 15 km/h? b-In the second half of the ride, you need to increase your average speed to make up for lost time. If you can maintain an average speed of 25 km/h, will you be able to reach your destination on time?

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

compass can be used day and night, cloudy or sunny

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray