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-BARSIC- [3]
3 years ago
7

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of

plants’ stems. Which is most likely to result in the greatest amount of error in their scientific experiment? One student measures the plant stem widths by using calipers. The other student measures the widths of the same plant stems again by using a different pair of calipers. One student measures the plant stem widths by using calipers. The other student types the measurements as they are taken into a computer spreadsheet. One student measures liquids for the experiment by holding the flask up at eye level. The other student measures liquids for the experiment while the flask sits on the table. One student weighs liquids for the experiment by using a calibrated scale. The other student weighs liquids for the experiment by using a different calibrated scale.
Physics
1 answer:
Westkost [7]3 years ago
4 0
The one the measures using a computer spreadsheet and holds the flask at eye level and uses the correctly calibrated scale
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hi

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4 0
2 years ago
Trisha is cold and puts on a sweater . in a few minutes she feels warmer why
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3 years ago
Forţa de rezistenţă la înaintare pe care o întâmpină o maşină reprezintă o fracţiune f=0,15 din greutatea ei. Ce putere are moto
frosja888 [35]

Answer:

777.59N

Explanation:

(The forward strength of a car is a fraction f = 0.15 of its weight. What power does the engine have if the mass of the car is 1.5t and reaches a top speed of 144km / h?)

F = Mass * acceleration

Acceleration =change in velocity / time

F = Mv / t

F = 0.15mg

M = 1.5t

g = 9.8 m/s

V = 144 km/hr= (144 * 3600) / 1000 = 518.4 m/s

0.15mg = mv / t

0.15 * g = v/t

0.15 * 9.8 = 518.4 / t

1.47t = 518.4

t = 518.4 / 1.47 = 352.65s

But mass = 1.5t

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F = 777.59N

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4 years ago
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