This is an equation that calculates potential energy and converts the value into its commercial unit.
<u>Step-by-step explanation:</u>
Step 1:
Given equation is 2 kg × 9.81 m/s² × 40 m. From the units, find the corresponding measurements. kg is the unit of mass (m), 9.81 m/s² is the acceleration due to gravity (g) and m is the unit of length or height (h).
This shows that this equation is to find potential energy. It is then converted into the commercial unit of energy (Joules).
⇒ Potential Energy = mgh = 2 kg × 9.81 m/s² × 40 m
= 784.8 kg m²/s²
= 784.8 N-m (Since unit of force, 1 N=kg m/s²)
= 784.8 J (1 Newton-m = 1 Joule)
Answer:
120=x
Step-by-step explanation:
Alternate interior angles are equal so the angle next to x is 40. Add the two angles you already have so 40+20=60. A line is 180 so 180-60=120
Answer:
1/6
Step-by-step explanation:
2/3 x 2/2 = 4/6
5/6 - 4/6 = 1/6
She spent 1/6 of an hour longer practicing on Monday.
you need to expand the bracket so you will get