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podryga [215]
3 years ago
10

Which of the following statements about water is NOT TRUE?

Biology
2 answers:
hram777 [196]3 years ago
5 0

Answer:

Explanation:

B is not true

ratelena [41]3 years ago
3 0
It’s d I believe
Cause c would be wrong and a
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❥SCIENCE SUBJECT
Fiesta28 [93]

9514 1404 393

Answer:

  • time: 1.122 seconds
  • range: 10.693 m
  • maximum height: 1.543 m

Explanation:

<u>Given</u>:

  runner is launched at 30° angle to horizontal at 11 m/s

  acceleration due to gravity is g = -9.8 m/s²

<u>Find</u>:

  runner's hang time

  runner's distance to the landing point

  runner's maximum height

<u>Solution</u>:

The (horizontal, vertical) speed components will be ...

  (11 m/s)(cos(30°), sin(30°)) = (5.5√3 m/s, 5.5 m/s)

The time of flight can be found from the height formula:

  h(t) = 1/2gt² +vt . . . . . . where v is the vertical speed at launch

The time we're concerned with is the time when h(t)=0 and t>0.

  0 = -4.9t^2 +5.5√3t = t(-4.9t +5.5√3)

The second factor is zero when ...

  t = (5.5√3)/4.9 ≈ 1.122 . . . seconds hang time

__

The distance to the landing point will be the product of horizontal speed and hang time:

  d = (5.5 m/s)(5.5√3/4.9 s) ≈ 10.693 m . . . . distance to landing

__

The maximum height can be found from the formula (based on conversion of kinetic energy to potential energy) ...

  h = v²/|2g| = (5.5 m/s)²/(2(9.8 m/s²)) ≈ 1.543 m . . . . maximum height

4 0
3 years ago
plant reproduction requires the presence of auxins, as well as a large amount of sugar for energy. which two main plant tissues
Fittoniya [83]

Answer:

The two main plant tissue that works together to release sugar and carry hormones so that reproduction can take place are: The ground and the vascular tissue.

Explanation:

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2 years ago
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Natasha_Volkova [10]

Answer:

I think its B

Explanation:

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2 years ago
3. What were the only elements around prior to Earth?
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Gold, Silver, Mercury, Iron and etc.
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What is needed to convert PGA into G3P in the second step of the Calvin-Benson cycle? carbon atoms from carbon dioxide, RuBP, an
gtnhenbr [62]

PGA ( Phosphoglyceric acid) is a first stable product of photosynthesis which under goes reduction. Six molecules of 3-PGA is reduced to six molecules of a chemical compound called glyceraldehyde 3-phosphate (G3P). In this conversion; six molecules of both ATP and NADPH are used. In this reduction reaction, there is gain of electrons by 3-PGA. NADPH is oxidized to NADP+ to give elections and energy is given by ATP.

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