A force of 13 N is applied to the handle of a screwdriver being used to pry off the lid of a

Biology

1 answer:

Elena-2011 [213]4 years ago

7 0

<h3><u>Answer;</u></h3>

Efficiency = 61.54%

<h3><u>Explanation</u>;</h3>

Efficiency is given by the Formula;

Efficiency = work output/work input × 100%

Work input = Input force × distance moved by the input force

= 13 N × 0,25

= 3.25 Joules

Work output or work done by the screwdriver is 2 Joules

Therefore;

Efficiency = 2/3.25 ×100%

<u>= 61.54%</u>

You might be interested in

A homozygous tall (dominant) pea plant is crossed with a short (recessive) plant. The probability that an F1 plant will be tall

Masteriza [31]

The answer would be B- 25%

7 0

3 years ago

Who is air warmer near earths surface

ddd [48]

This question is very good

3 0

4 years ago

Read 2 more answers

Which of the following scientific names is written correctly according to binomial nomenclature? Passer Domesticus Passer Domest

Goryan [66]

The correct answer is C, i.e., Passeur domesticus. According to binomial nomenclature, the name of the genus is started with a capital alphabet and name of the species is started with the lower alphabet. Further, it should also be in italics or alternatively may be underlined

5 0

4 years ago

Read 2 more answers

which of the following statements is true? A.) Both unicellular and multicellular are at some risk of having too much water ente

andrew11 [14]

A is your answer.
Water containing no salt is known as isotonic solution

4 0

3 years ago

The Mesozoic Era is marked by dramatic evolutionary activity. What factor best set the stage for the dramatic development of ins

Reptile [31]

Answer:

The era is characterized by having one of the most diverse environment that the earth could have ever seen, as there were number of species of dinosaurs and there were different plant life as well, and the climate was not so cold to live for the different organisms.
As, the life on earth flourish even there were organisms found on large scale inside the arctic circle.While, the level of CO₂ increased inside the Mesozoic era. Along , with which the extinction of about 96 percent of life made it very difficult for the rest of the organisms to survive and thus there were now mutations happening inside the different organisms genome.Along, with that the way of reproduction was greatly changed inside the plants, as more effective form of flowering plants were evolved.
As, for the animals new species with the increase level of survival instinct were evolved from old simple ones across the globe.

4 0

4 years ago