See individual questions.
Understand the Problem
The image contains a set of homework questions. Let's categorize them individually:
Question 13: This is a physics problem that requires calculating initial velocity given retardation and stopping time. It falls under the 'math' category. Question 14: This question asks about the reasons for prioritizing sustainable development. It's a knowledge-based question related to environmental studies, and hence a 'knowledge' category question. Question 15: This asks for the difference between androecium and gynoecium, biology question, and hence a 'knowledge' question. Question 16: This question asks about how water hardness can be removed chemically. And hence a 'knowledge' question. Question 17: This question concerns the formation of Earth according to the Tidal hypothesis. It aims to understand the scientific theory behind the formation related with geology, and hence a 'knowledge' question.
Answer
13. 8 m/s 14. Meets present needs without compromising future generations. 15. Androecium: male, stamens. Gynoecium: female, pistils. 16. Sodium ions from permutit exchange with calcium and magnesium ions in water 17. Tidal bulge from sun, caused by star, formed planets.
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The initial velocity of the car is 8 m/s.
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We should prioritize sustainable development because it meets the needs of the present without compromising the ability of future generations to meet their own needs.
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Androecium is the male reproductive part of a flower, while gynoecium is the female reproductive part. Androecium consists of stamens, while gynoecium consists of pistils/carpels.
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The permutit method removes hardness by using a sodium aluminum silicate (permutit) to exchange sodium ions for calcium and magnesium ions in the water.
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According to the Tidal hypothesis, the Earth was formed due to a tidal bulge on the surface of the sun caused by a passing star. This bulge separated from the sun and cooled to form the planets.
Answer for screen readers
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The initial velocity of the car is 8 m/s.
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We should prioritize sustainable development because it meets the needs of the present without compromising the ability of future generations to meet their own needs.
-
Androecium is the male reproductive part of a flower, while gynoecium is the female reproductive part. Androecium consists of stamens, while gynoecium consists of pistils/carpels.
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The permutit method removes hardness by using a sodium aluminum silicate (permutit) to exchange sodium ions for calcium and magnesium ions in the water.
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According to the Tidal hypothesis, the Earth was formed due to a tidal bulge on the surface of the sun caused by a passing star. This bulge separated from the sun and cooled to form the planets.
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