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sladkih [1.3K]
3 years ago
7

The brain is not a muscle, like the heart, that can be worked and built. Which BEST explains why a consistent exercise regime ha

s a positive
impact on the brain?
ОА. .
Exercise generally requires a lot of thinking.
ОВ.
Exercise can eliminate all of the impact of stress.
OC.
Exercise helps maintain and create pathways in the brain.
OD.
Exercise is the only way to moderate the hormones that control the brain.
Physics
1 answer:
Anna007 [38]3 years ago
4 0

Answer:

Explanation:

D

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A student wants to draw a diagram to show the path of a light wave. Which
wariber [46]

Answer:

D

Explanation:

light moves in a straight line (sorry if I'm wrong)

8 0
3 years ago
1. Meiosis produces daughter cells that are
Marina86 [1]

Answer:

1. A Haploid

2. A. Somatic Cell production

3. B. Gametic cell production

4. C. Mitosis produces identical cells to parent cells.

5. B 4:0

6. C Both parent bees are heterozygous Ll

7. D DNA is made up of chromosomes

8. B Each hypothesis was tested and DNA supported the data better

9. D There may be an increase in pest populations that are resistant to control measures.

10. A They are proven to cause cancer.

11. B a form of a gene

Explanation:

Answer was too long, so is attached in a word document

Download docx
5 0
3 years ago
A typical rechargeable deep-cycle battery for an electric trolling motor (fishing boat) delivers 10A of current at a voltage of
Oksi-84 [34.3K]

Answer:

a) 360 kQ

b) 4.32 MJ

c) 1200 W-h

Explanation:

a) The definition of the current is.

I= \frac{Q}{t}

having a count that 10 hours = 36.000 s

Q = I*t

Q = 36000*10 = 360.000 [Q]

b) The definition of the Energy in power terms is.

E = \int\limits^{t}_{0} {P} \, dt

and the definition of power is:

P = V*I = 12 * 10 = 120 [W]

replacing in the energy formula.

E = \int\limits^{36.000}_{0} {120} \, dt

solving the integral, have into account that t is in seconds.

E=P*t=120*36000=4.320.000=4.32 [MJ]

c) The energy in W-h, we can find it multiplying power by hours

E = P*t =120*10 = 1200 W-h.

3 0
3 years ago
Which of the following is a conversion of potential to kinetic energy?
ruslelena [56]
Its either releasing a stretch rubber band and a ball rolling down a hill because rubber have a potential to move when its stretch and its an eleastic potential energy also a ball rolling down a hill is a gravitational to kinetic energy because the ball started at rest which is art the top of the hill and it has a potential to fall. Once its started rolling its energy transfer into kinetic energy.
Hope this helps
4 0
4 years ago
The force experienced by a unit test charge is a measure of the strength of an electric:
Flauer [41]

an electric field is the answer

3 0
4 years ago
Read 2 more answers
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