M=meter, km=kilometer, mm=millimeter, mg=micrometer, cm=centimeter
Answer:
Hydrogen fuel cells have a higher energy efficiency. Hydrogen fuel cells create less pollution. Burning fossil fuels relies on outdated devices and technology. Pure hydrogen is more readily available than fossil fuels
Explanation:
Answer:
Speed of light in the glass
Explanation:
In this question we have given
angle of polaization,p=
we have to find the speed of light in the glass,v=?
We know that, refractive index of glass can be determined by following formula
................(1)
here,
c- speed of light in air
v-speed of light in glass
we also know according to brewester's law refrective index of glass is given as
n=tanp......................(2)
here p-angle of polarization
From equation (1) and equation (2)
we got
put value of c= and p= in equation 3
we got
Weather is the condition of the atmosphere at a particular place and time
Climate is the average condition of the atmosphere of a specific place over a long period of time
Answer:
Explanation:
Comment
The main points are that
- The arrowheads go in opposite directions
- Displacement is measured from the origin to the arrowhead of the last vector correctly drawn.
- the tail of the second vector starts where the arrowhead of the first vector is.
Solution
40 miles west
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Displacement (30 km east)
Answer
30 km east