Organisms can be either producers or consumers in terms of energy flow through an ecosystem<span>. Producers convert </span>energy<span> from the environment into carbon bonds, such as those found in the sugar glucose.</span>
Answer:
B. I and III
Explanation:
Options I and III are correct. We are not able to view stars at all points in the night sky due to the fact that the size of the universe is infinite and the universe is made up of dust , gases, and matter. These components are able to trap starlight . Also the cosmos is constantly changing as there are interactions between bodies that make up the universe.
Answer is B. Since the number in the inequality is 5, we must be able to include it in the inequality, and therefore must use an “equal to” inequality. Since there are values less than 5, we must be able to include those numbers in the inequality. A greater than sign would therefore not make sense, meaning you must use a less than sign. Combine these two observations and you will find that the graph must be less than or equal to 5.
Answer:
80mm or 8cm
Explanation:
According to the lens formula,
1/f = 1/u+1/v
If the object distance u = 4cm = 40mm
Object height = 1.5mm
Image height = 3mm
First, we need to get the image distance (v) using the magnification formula Magnification = image distance/object distance = Image height/object height
v/40=3/1.5
1.5v = 120
v = 120/1.5
v = 80mm
The image distance is 80mm
To get the focal length, we will substitute the image distance and the object distance in the mirror formula to have;
1/f = 1/40+1/-80
Note that the image formed by the lens is an upright image (virtual), therefore the image distance will be negative.
Also the focal length of the converging lens is positive. Our formula will become;
1/f = 1/40-1/80
1/f = 2-1/80
1/f = 1/80
f = 80mm
The focal length of the lens 80mm or 8cm
Answer:
B. Both of the crates are accelerating at the same rate.
Explanation:
This is a <em>conceptual</em> question. Ignore the values. This is a <em>trick</em> question.
My question to you: both of these crates are falling on Earth, right?
Now chew on this:
What's the value of acceleration due to gravity on Earth?
Hope this helps you! Have a great day!