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WITCHER [35]
3 years ago
12

1. Choose the statement that does not accurately describe observations

Physics
2 answers:
erastova [34]3 years ago
3 0

Answer:What are the statements?

Explanation:

telo118 [61]3 years ago
3 0

Answer:

obtuse, oblique, unaware, over stimulate, distracted, undrewhelmed...

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what can you infer about copper and sliver based on their position relative to each other on the periodic table?
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Both are metals and are good conductors of electricity and heat.
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What did scientists predict the big bang should have left ??
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<span>radiation, hydrogen, and helium </span>
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A physicist makes a cup of instant coffee and notices that, as the coffee cools, its level drops 3.00 mm in the glass cup. Show
Lady bird [3.3K]

Answer:

change in height  is 1.664 mm

Explanation:

Given data

drops = 3.00 mm

diameter = 5.00 cm = 0.05 mm

decrease  =  350 cm^3

temperature = 95°C to 44.0°C

to find out

the decrease in millimeters in level

solution

we  will calculate here change in volume so we can find how much level is decrease

change in volume = β v change in temp   ...............1

here change in volume = area× height

so = \pi /4 × d² h

so we can say change in volume =  \pi /4 × d² × change in height   .......2

so from equation 1 and 2  we calculate change in height

( β(w) -β(g) )× v× change in temp = \pi /4 × d² × change in height

change in height = 4 × ( β(w) -β(g) ) v× change in temp / \pi /4 × d²

put all value here

change in height = 4 × ( 210 - 27 )(350 ) 10^{-6}× (95-44) / \pi /4 × 0.05²

change in height  is 1.664 mm

5 0
3 years ago
During unfavorable environmental conditions, a seed or a plant may protect itself by going through an inactive stage in which it
12345 [234]
This stage is known as Dormancy
7 0
2 years ago
Read 2 more answers
A pulley has a mechanical advantage of 1.
sertanlavr [38]

Answer:

There is no mechanical advantage

Explanation:

The mechanical advantage is possible only when the force needed to lift a load is lesser than the weight of the load.

For example, is we have a mechanical advantage of 2, the force needed to lift will be 1/2 of the weight of the load, and if we have a mechanical advantage of 4, the force needed will be 1/4 of the weight of the load.

In the attached image there are clear examples of mechanical advantage with pulleys.

7 0
2 years ago
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