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Ann [662]
3 years ago
14

A small 21 kilogram canoe is floating downriver at a speed of 3 m/s. What is the canoe's kinetic energy?

Biology
1 answer:
astraxan [27]3 years ago
6 0
The formula for finding the kinetic energy of an object is:
KE = 0.5MV^2,
Where:
M= Mass
V = Speed
From the information given above,
M = 21 kg
V = 3 m/s
KE = 0.5 * 21 * 9 = 94.5
Therefore, the canoe's kinetic energy is 94.5 J
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The true statement for the energy in ecosystems is "Producers only absorb 40% of the sun’s energy, most of which is lost during photosynthesis". The correct option is A.

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Ecosystems contain both biotic and abiotic components. Plants, animals, and other organisms are examples of biotic factors.

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Plants and marine ecosystems make up the majority of the terrestrial ecosystem.

Thus, the correct option is A.

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2 years ago
Because identical twins begin as a single fertilized egg that then separates, identical twins share ____ percent of genetic make
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Because identical twins begin as a single fertilized egg that then separates, identical twins share 100 percent of genetic makeup.

<h3>IDENTICAL TWINS:</h3>

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Their similarity emanates from their genetic content. Identical twins are formed when two sperms fertilize a single egg, which then splits into two.

Since identical twins begin as a single fertilized egg that then separates, this means that they share 100% of their genetic makeup.

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Describe and account for the relationship between the two population growth curves between hares and lynx.
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Explanation:

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The deeper you get into the water the penetration of sunlight decreases. This is because the rays are greatly diffused even before they get to the deepest zones. The abyssalpelagic zone virtually receives no sunlight because the rays cannot get to this zone. This zone is, therefore, pitch dark and also the coldest. The deeper you get into the ocean the higher the water pressure due to the weight of the able water column. The water pressure is, therefore, highest in the  abyssalpelagic zone.

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