Greg is in a bike race. At mile marker four (out of ten), his speed was measured at 13.5 mph. Which best describes the measured
number? It is the average speed of the bike rider. It is the instantaneous speed of the bike rider. It is the instantaneous velocity of the bike rider. It is the average velocity of the bike rider.Which is a valid velocity reading for an object? 45 m/s 45 m/s north 0 m/s south 0 m/s
The correct answer is - It is the instantaneous speed of the bike rider.
Explanation:
Velocity is the speed with the direction so, it is a vector while speed is the specific distance covered in a unit of time, as there is no sense of direction it is scalar.
The instantaneous speed is the speed of an object at a particular or specific instant of time, in this case, the speed of the biker is mentioned not the velocity as a direction not given
Thus, the correct answer is option - It is the instantaneous speed of the bike rider.
Explanation: Rotary evaporator is used to evaporate or eliminate solvents in a solution. Due to the fact they were analyzing pure substances it was not necessary to use this equipment.
