sorry - late reply...just stumbled across tis...hope u can still use it :)
By the mirror equation: 1/di + 1/do = 1/f
<span>
</span>
<span>where di = distance to image = +12cm (+ for real image)</span>
and do = distance to object = +8cm
Substitute and solve for f, the focal length
<span><span>
1/12 + 1/8 = 1/f
</span><span>
1/f = (8 + 12) / 12 * 8 = 20/96
</span><span>
so f = 96/20 = 4.8 cm</span>
</span>
The equation for power is P=w/t, where w=work done in joules and t=time in seconds.
in this case:
p=w/t
p=3500/25
p=140
so, the boat was using 140 watts of power.
<h3><u>Answer;</u></h3>
Directions
Genes provide <u>directions</u> for a cell to assemble molecules that express traits such as eye color of seed shape.
<h3><u>Explanation;</u></h3>
- <em><u>A gene is a segment of DNA on a chromosome that codes for a specific trait. It is the set of information that controls a given trait.</u></em>
- Each gene occupies a specific position on a chromosome. Genes are responsible for characteristics inherited by an individual from the parents,because genes provide instructions for making proteins, and proteins determine the structure and function of each cell in the body.
General relativity is the theory of space and time. This was theory was found by Albert Einstein