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How many square meter are in one meter?
You can't convert that. You can only convert units that measure the same type of thing - for example, units of length to units of length, units of mass to units of mass, units of time to units of time, etc.
How do you find the frequency of a wave using a stopwatch?
Frequency is the amount of cycles within a given amount of time. It is usually described in units of 1/s, where s is seconds. If the wave is traveling, count the amount of peaks that pass by a certain reference point within a measured amount of time. Take the amount of peaks that have passed, and divide that quantity by the amount of time that has passed. If the wave is not traveling (ie, a spring motion), count the amount of cycles within a measured amount of time. Then, as before, divide this quantity by the amount of time that has passed.
Convert 7400 square meters in to running meters?
It doesn't make sense to convert that. You can only convert units of the same kind, e.g., units of length to units of length; units of area to units of area; units of time to units of time, etc.
Is work a noncount noun?
Yes, work is a mass (non count) noun; work is specified by days or units of time. The word works is used as a singular form for the mechanism of a machine, watch, etc. or a body of work or deeds.
What is the period of the wave motion for a wave with a frequency of 0.47 kHz?
0.47 kHz = 0.47 x 1000 Hz = 470Hz which means that there are 470 cycles per second. So the period of 1 cycle is (1/470) time units
