Answer:
This is the information I can provide. I hope it helps
Explanation:
Frequency is measured in units of hertz (Hz) which is equal to one occurrence of a repeating event per second. The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency.
The speed of the ball is 101miles/hr.
A mile is a unit of length that is exactly 1,609.344 metres long. Similarly, 5,280 feet or 1,760 yards make up one mile. The mile is an imperial and common US measurement of distance.
We just have to deal with unit conversions.
One mile is 5280 feet, or 1 ft = 0.000189
The speed of the ball in miles per hour is
![\frac{148ft}{1sec} . \frac{1mile}{5280ft} .\frac{60s}{1min} .\frac{60min}{1hr}](https://tex.z-dn.net/?f=%5Cfrac%7B148ft%7D%7B1sec%7D%20.%20%5Cfrac%7B1mile%7D%7B5280ft%7D%20.%5Cfrac%7B60s%7D%7B1min%7D%20.%5Cfrac%7B60min%7D%7B1hr%7D)
So, the speed of the ball in miles per hour is 101miles/hr.
Learn more about miles here;
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Kinetic Energy = 1/2 * m * v²
1/2 * 30 * 20²
1/2 * 30 * 400
12000/2
6000 J.
Answer:
force-strength,power or energy as an attribute of motion, movement or action. Example: Frictional force.
Answer:
Ionic compound.
Explanation:
812° C is a very high melting point. Such high melting points are generally ionic compound. Ionic compounds are have very strong bond between the elements ( electrostatic bond). In order to break this bond, large amount of heat energies are needed. So, they have high melting point. Also, Ionic compound are very good conductors of electricity.