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olga55 [171]
3 years ago
6

Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She pl

aced them on a window sill i0n the sun for an hour and then measured the warmth of the air in each box. In this experiment, the types of box materials are a(n)
A. Independent Variable.

B. Constant

C. Control

D. Dependent Variable
Physics
2 answers:
skelet666 [1.2K]3 years ago
5 0
<span>D. Dependent Variable is what i think it is

</span>
tigry1 [53]3 years ago
4 0

Answer:A. Independent Variable.

Explanation:

The independent variable can be changed, altered and manipulated in an experiment. This is done to observe such a change over the dependent variable.

The three boxes of different materials is an example of independent variable. The effect of which can be observed on the warm air present in each box which is the example of dependent variable.

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Consider the following geometric solids.
Bad White [126]

Before answering this question, first we have to understand the effect of ratio of surface area to volume on the rate of diffusion.

The rate of diffusion for a body having larger surface area as compared to the ratio of surface area to volume will be more than a body having less surface area. Mathematically it can written as-

                           V∝ R            [ where v is the rate of diffusion and r is the ratio of surface area to volume]

As per the question,the ratio of surface area to volume for a sphere is given 0.08m^{-1}

The surface area to volume ratio for right circular cylinder is given 2.1m^{-1}

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5 0
3 years ago
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Does anyone know the answer to all of these questions
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Answer:

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5 0
3 years ago
Why is air considered a fluid
34kurt

Answer:

A fluids is any substance that flows. Air is made of stuff, air particles, that are loosely held together in a gas form. Although liquids are the most commonly recognized fluids, gasses are also fluids. Since air is a gas, it flows and takes the form of its container.

Explanation:

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Shay reacts solid zinc and aqueous copper sulfate to form aqueous zinc sulfate and solid copper. If he reacts 10.1 grams of zinc
zhenek [66]

Answer:

Now since mass of reactant is equal to mass of the product after the reaction so we can say that mass conservation is applicable here

Explanation:

As we know that zinc reacts with copper sulfate

so the reaction is given as

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so here we have

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