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ANEK [815]
2 years ago
6

Tera performed multiple experiments to determine the best growing conditions for Azaleas. In one experiment, she tested the effe

ct of using different types of soil. In another experiment, she tested the effect of exposing the plants to varying amounts of light. And, in another experiment, she tested the use of different amounts of fertilizer. Once she completed her experiments, Tera recorded all of her observations before making a conclusion.
This scenario suggests that

A.scientific questions are often solved by performing a single experiment
B.scientific hypotheses should be made after reaching a conclusion.
C.scientific evidence includes observations, data, and personal opinions
D.scientific explanations are based on evidence, or data.


I think its D
Physics
2 answers:
Ira Lisetskai [31]2 years ago
8 0
The answer should be D. Ur right
Talja [164]2 years ago
8 0

Answer:

Option D. The scenario suggests that scientific explanations are based on evidence, or data.

Explanation:

Before making a conclussion or giving an explanation on the experiment made, Tera performs mutiple experiments with different variables and then records all of the obserations made during the experiments, to be able to make a conclussion. This suggests that scientific explanations come as a result of evidence or data, as Tera's recorded observations will show.

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Valentin [98]

Answer:

Explanation:

a )

Pressure on the bottom

= hdg

= 2.5 x 820 x 9.8

= 20090 N / m²

b )

force = area x pressure

= 20090 x 10 x 6 N

= 1205400 N

c )

Force on 10m x 2.5 m face

center of gravity of the tank will lie at height 2 .5 / 2 = 1.25 m

Pressure = hdg

= 1.25 x 820 x 9.8

= 10045 N/m²

force = pressure x area

= 10045  x 10 x 2.5

= 251125 N .

7 0
3 years ago
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What is the difference between a chemical change and a physical change? *
slavikrds [6]

Answer:

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7 0
3 years ago
Which is not an example of a scalar?<br><br> a. 2t/s<br> b. 3kg<br> c. 6.2m north<br> d. -100c
xxMikexx [17]
C because I’m a teacher
4 0
3 years ago
Compare the frequency, wavelength, and radiant energy of yellow visible light to that of purple visible light.
dybincka [34]

Answer:

Violet has a higher frequency (approximately 7.5×1014 Hz 7.5 × 10 14 Hz ) than red light (approximately 4.3×1014 Hz 4.3 × 10 14 Hz ). Since the speed of both waves is the same, we infer that violet has a shorter wavelength (400 nm ) than red (700 nm ).

Explanation:

hope it helps this took a lot of my time please mark brainlets!

4 0
1 year ago
PLZ HELP WILL GIVE BRAINLIEST
xxTIMURxx [149]

Answer:

12.7m/s

Explanation:

Given parameters:

Mass of the diver = 77kg

Height  = 8.18m

Unknown:

Final velocity  = ?

Solution:

To solve this problem, we use one of the motion equations.

            v²  = u² + 2gh

v is the final velocity

u is the initial velocity

g is the acceleration due to gravity

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7 0
3 years ago
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