Which of these is most likely to be attracted to a magnet?a. a book
b. Electromagnet
c. Piece of glass
d. A copper wire
Answers
Answer:
B, and electromagnet
Explanation:
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Carbon dioxide is added to the atmosphere: a) as a by-product of solar energy b) from the burning of fossil fuels c) from hydroelectric power plants and dams d) as a waste product from nuclear power plants
B. potential energy
C. volume
D. mass
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Thermal energy is heat energy, therefore the hotter a solid is the more thermal energy it has.
C. Volume
When an object gets hotter, it expands. This is becuase the particles vibrate more and so are less compact.
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From middle school to college, the two most widely used formats are MLA and APA for writing essays.
-Hope this helps!
b. Refraction
c. Resonance
d. Diffraction
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b.2 and 4
c.1 and 3
d.2 and 5
e.all
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want to use #1 and #3 for an experiment with meaningful results.
Why ?
Thinking clearly, you'd look at a swinging pendulum, and realize that
there are only two things about it that might affect its period:
==> its length, and ==> the weight on the end of it.
Since this first experiment focuses on the length, you want to keep
everything else constant. So you'd want to compare pendulums
with different lengths but the same weight.
Later on, you'll do the other experiment. You'll compare pendulums
with the same length but different weights.
Assuming that W = weight.
Weight has to be equal so that you can concentrate on time change because of varying length.
If you change weight as well, the experiment would not be very accurate and would result in a failure.
So, the right answer is C. 1 and 3.
Hope this helped!
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These skills include playing the harmonica, riding a unicycle, and asking
others to choose from a list and then not telling them what's on the list.
Answers
Answer:
31,556,736 seconds
Explanation:
The period of Earth's orbit around the Sun, T = (365 + 1/4) days (three hundred and sixty five and a quarter days
The period of Earth's orbit around the Sun in seconds is given by converting, T = into seconds as follows;
There are 60 seconds per minute, 60 minutes in each hour, 24 hours within each day, therefore, we get;
T = ×60 sec/min × 60 min/hr. × 24hr/day = 31,556,736 seconds