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Yuki888 [10]
3 years ago
13

A student conducts an experiment to determine how the temperature of water affects the time for sugar to dissolve. In each trial

, the
student uses a different amount of water and a different temperature of water
What is wrong with this experimental design?
O The student needs to perform more trials.
O The student does not have a dependent variable.
The student changed more than one independent variable.
The student did not change enough independent variables.
Physics
1 answer:
Slav-nsk [51]3 years ago
4 0

Answer:

DGFGDFDDF

Explanation: CALL FBI

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Two boats - Boat A and Boat B - are anchored a distance of 24 meters apart. The incoming water waves force the boats to oscillat
ozzi

Answer:

wavelength = 24 m

Period = 10 s

f = 0.1 Hz

Amplitude = 4 m

Explanation:

Wavelength:

Since the boats are at crest and trough, respectively at the same time. Hence, the horizontal distance between them is the wavelength of the wave:

<u>wavelength = 24 m</u>  

Period:

The period is given as:

Period = \frac{time}{no.\ of\ cycles} \\\\Period = \frac{10\ s}{1}\\\\

<u>Period = 10 s</u>

<u></u>

Frequency:

The frequency is given as:

f = \frac{1}{time\ period}\\\\f = \frac{1}{10\ s}\\\\

<u>f = 0.1 Hz</u>

<u></u>

Amplitude:

Amplitude will be half the distance between extreme points, that is, crest and trough:

Amplitude = 8 m/2

<u>Amplitude = 4 m</u>

5 0
3 years ago
Explain what happens with light causing you to see colored opaque objects
algol13

answer:

an opaque object is one that doesn't let light pass through it. instead, it reflects or absorbs the light that strikes it.

explanation:

in this case, we see the material because of the transmitted light. therefore, the wavelength of the transmitted light determines the color that the object appears.

good luck :)

i hope this helps

have a nice day !!

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Answer:

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What are plants and animals that get their energy from eating other things?
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Answer:

B. Consumers.

Explanation:

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