To determine the period of a wave you need not utilize the value for the wave speed.
The formula for the period is T= 1/f
T stands for period/time while f is for frequency. Substitute the value for the frequency which is 60 Hz. That would give you:
T= 1/60 Hz
convert Hz to cycles per second to extract the unit of time (s).
60 Hz x 1/s/1 Hz= 60/s
To continue the computation:
T=1/60/s that will give you a T= 0.017 s or 17 ms.
<span> applies to any object moving more slowly than the speed of light</span>
Answer:
<u>411.84 kg m/s</u>
Explanation:
Formula :
<u>Momentum = mass × velocity</u>
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Given :
⇒ mass = 26.4 kg
⇒ velocity = 15.6 m/s
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Solving :
⇒ Momentum = 26.4 × 15.6
⇒ Momentum = <u>411.84 kg m/s</u>
They have the same number of electrons in their outermost shell
Explanation:
Lithium, sodium, potassium, rubidium, cesium and francium are in the same column on the periodic table because they have the same number of electrons in their outermost shell.
- The periodic table is based on the precepts of the modern periodic law which states that "the properties of elements are a periodic function of their atomic number".
- In the table elements having the same number of electrons in the outermost shell of their atoms are placed over one another in vertical columns.
- Each of the resulting vertical column is known as a group or family.
- The given elements belongs to the first family on the periodic table.
- In this group, all the elements have just one electron in their outermost shell.
learn more:
Periodic table brainly.com/question/5090516
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