Chemistry High School

Calculate the acceleration of Josh riding his bicycle in a straight line that speeds up from 4 m/s to 6 m/s in 5 seconds. Initial Speed ____. Final Speed ______. Time ______. Acceleration =________

Answers

Answer 1

Answer:

Initial Speed ____4m/s. Final Speed ______6m/s. Time ______5 seconds . Acceleration =________0.4m/s²

Explanation:

The acceleration is the rate of change of velocity during time t .

acceleration = Final velocity- Initial velocity/ Time

                    = Vf- Vi/ t

            a = Δv/ Δt

                   = 6m/s- 4m/s/ 5s

                   = 2m/s/ 5s

                  = 0.4m/s²

It can also be defined as the difference of the initial and final velocity ( velocities measured in meters per second) during the given time t measured in seconds .The SI unit of acceleration is meter per second squared.

If the velocities are not measured in meters per second or time is not measured in seconds then the units are changed accordingly.

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A. increases in potential energy

B. decrease in velocity

C. increases in slope

D. decrease in width


Question 2: Sediment is usually deposited by the stream at locations where the stream


A) increases in potential energy

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C) increases in slope

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Answers

Is b decrease because it is right

During active transport, molecules move from areas of ______________ to _______________. This requires the use of _________.

Answers

Molecules move from areas of low concentration to areas of high concentration. This requires the use of energy.
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