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musickatia [10]
3 years ago
7

Experiments and investigations must be ____. a. approved b. repeatable c. not reproducible d. accepted

Physics
2 answers:
deff fn [24]3 years ago
7 0
Experiments and investigations must be B. Repeatable.
Dovator [93]3 years ago
5 0
<span>Experiments and investigations must be repeatable. Good experiments allow other fellow researchers to replicate or repeat the studies to examine whether they will create similar results. Such results will further support any theory or hypothesis being questioned. The opposite may also be true, namely the repeating of the experiment may oppose the previous results and put into question the original experiment.</span>
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Which type of stress is most likely the cause of irritability?
masha68 [24]

Answer:

The correct answer is - distress.

Explanation:

Eustress is a type of stress that is beneficial to person and caused by adrenaline. Hypostress is a stress that is caused due to boredom or no work. It is stress comes with wasting the time.

Distress is the bad stress caused by anxiety, sadness, grief, and such type of stress that is caused irritability. Irritability is caused not just by stress but many factors.

4 0
3 years ago
Which biome is most likely to have animals that hibernate, or sleep for long periods during the winter to avoid the cold?
TiliK225 [7]
Either tundra or polar i think.
5 0
3 years ago
Read 2 more answers
HELP ME ASAP PLEASE
padilas [110]

Answer:

( 1000 × 4 = 4,000) (800×3= 2400) (800×2=1600) the answer is 1600 hope it helps

6 0
3 years ago
True or False. Recent findings lend strong support to the theory that a black hole lies at the center of the Milky Way and of ma
Genrish500 [490]

Answer:

True

Explanation:

In 2019 was taken the first image of a supermassive black hole in the center of the galaxy M87 with the Event Horizon Telescope, which is a network of radio telescope located in different points of the Earth, with the purpose of making a telescope of the size of the Earth.

A radio telescope is an antenna that is capable to perceive the light in the radio part of the electromagnetic spectrum¹.

It is important to notice that in the picture what it can be seen is the effect that the black hole has in the nearby stars.

Key terms:

¹Electromagnetic spectrum: decomposition of light in its different wavelengths (from radio waves to gamma rays).

7 0
3 years ago
What is the marble's range if it is fired horizontally from 1.6 m above the ground?
cupoosta [38]

Answer:

The answer is 6.40 meters.

Explanation:

The speed v = √(2gh)

v = √( 2×9.8×6.4) = 11.2 m/s

After, finding the time it takes to hit the ground from a height of 1.6 meters.

time = √(2H÷g)

time = √(2×1.6÷9.8)

time = 0.5714 seconds.

Horizontal distance is speed × time = 11.2 × 0.5714 = 6.40 meters.

5 0
3 years ago
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