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astra-53 [7]
3 years ago
13

Does a fan not spinning have energy? explain.​

Biology
1 answer:
kirill [66]3 years ago
4 0

Answer:

A fan always uses mechanical energy, that's why, when you turn it off, it eventually stops spinning, and it would even if it were frictionless, because the built up mechanical energy (rotational kinetic energy) gets used up from continuing to move air.

Explanation:

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Students in a science class were asked to investigate how missing or damaged
Viktor [21]

Answer:

At what rate do the mitochondria of the cell need to convert glucose to usable

energy molecules to meet the high energy needs of the cell?

Explanation:

Organelles are organ-like structures found in cells. The are responsible for the specific actions carried out by each cell. Each organelle has its own specific role to play. However, missing or damaged organelles can have effects on the cells.

Mitochondria are organelles found in cells of all eukaryotic living organisms e.g animal, plants as they are responsible for the synthesis of energy in form of ATP. Since the cells being investigated in this question is a MUSCLE CELL, which is only found in animals, then an appropriate organelle must be investigated.

The appropriate to be asked to know if muscles cells are functioning properly is: At what rate do the mitochondria of the cell need to convert glucose to usable energy molecules to meet the high energy needs of the cell?.

Note that, other options are incorrect because muscle cells do not have chloroplast and cell wall, while ribosomes are not site for glucose production.

7 0
4 years ago
A food chain consists of phytoplankton, zooplankton, shrimp, and herring. If the bacteria produces 173,000 kJm-2 year-1 of energ
dangina [55]

Answer:

The trophic efficiency between the primary and the secondary produces is 18.064 %

Explanation:

The trophic efficiency is the ratio or the fraction obtained by dividing the energy used for growth at a trophc level by the level of energy supplied at the the next lower trophic level.

The given parameters are;

The energy produced by the bacteria (primary consumer) = 173,000 kJ/(m²/y)

The energy contained in the plankton = 28,000 kJ/(m²/y)

The energy contained in the shrimp = 3,100 kJ/(m²/y)

The energy contained in the herring = 150 kJ/(m²/y)

Therefore, we have;

Energy supplied at the primary trophic level = 173,000 kJ/(m²/y)

The energy used for growth (contained) in the secondary trophic level (secondary consumer)  = 28,000 + 3,100 + 150 =  31,250 kJ/(m²/y)

Trophic \ efficiency = \dfrac{Energy \ used \ for\ growth\ (Secondary\  consumer)  }{ Energy \ Supplied \ (Primary \  consumer) } \times 100

Trophic \ efficiency = \dfrac{31,250}{ 173,000} \times 100 =  18.064 \ \%

8 0
4 years ago
Which functional group is involved in energy release in all living cells?
Likurg_2 [28]
The Phosphate group
4 0
3 years ago
This table incudes the characteristics of all major kingdoms.
FrozenT [24]
B Eubacteria. hope this helps :3
3 0
3 years ago
An example of density is a. 2.17 centimeters. b. 2.174 liters. c. 2.17 grams per centimeter.
Mice21 [21]
Density is measured in mass per volume thus C would be the answer.

2.17 g / cm³
5 0
4 years ago
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