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What is the speed of a hockey puck moves 45 meters in 5 seconds?
Speed in physics is called velocity what you are looking for when you are talking about speed/velocity you are looking for an answer with the units being "distance/time" such as "miles/hour" in this case you are using the distance measurement of meters and the time unit of seconds therefore you want an answer in "meters/second." Ergo, you divide the unit of distance by time so it would be "45 meters/5 seconds" which would simplify to "9 meters/second" where the symbol "/" can be pronounce as "per" so it could be written "9 meters per second" I hope you did just get the answer, but rather some of the thought process of the issue.
How many mph is 100 meters in 13.45 seconds?
16.6323mph100 meters is 0.06214 miles13.45 seconds is 0.0037361 hoursFind the answer by using the proportion........0.06214...........X_________ = ___0.0037361.......1
If the 1st 2nd and 3rd dimensions can be measured in distance units can the 4th dimension or time be measured using the same units?
No - because time is measured in seconds, not linear distance.
Why do people need to know how to convert units?
Different units are often used to measure the same type of thing (for instance, length). Sometimes you want to convert to another unit, just to visualize the amount - for example, if you are accustomed to seeing lengths expressed in meters, you may have trouble understanding feet. Or perhaps the other way round. Also, when using formulae, units need to be compatible. As an example, in the formula commonly used for speed problems: distance = speed x time distance might be in meters, time in seconds, in which case speed must be in meters per second. If one of the units is incompatible, it must be converted first.
how to convert radius into meters?
That depends on the units the radius is measured in. Radius is a distance and can be measured using any unit of length.
