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3 years ago

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If two different substances, with the same mass (1 gram) absorb the same amount of energy, which of the following can be predict

ed?
A. The temperature of the substance with the higher specific heat will increase more than the one with a lower specific heat.

B. The temperature of both substances will increase equal amounts.

C. The temperature of the substance with the lower specific heat will increase more than the one with a higher specific heat.

D. Cannot predict without knowing the specific substances.

2 answers:

Oksanka [162]3 years ago

8 0

the correct answer is C

enyata [817]3 years ago

5 0

the temperature of the substance with the lower specific heat will increase more than one with a higher specific heat.

I know this is correct because I just had this question and this was the answer.

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Eva8 [605]

Answer:

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Explanation:

In 1929, Edwin Hubble's wrote an article that talked about relationship between the distance and recession speed/velocity of galaxies which led to what is known as the Hubble Law. This law states that galaxies are moving away from the earth at velocities proportional to their distances.

Thus is written as;

v = H_o•d

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H_o is Hubble's constant rate of cosmic expansion.

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Very easy physics maths about current and other stuffs only one question please help me

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Answer:

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2 years ago

A thin, metallic spherical shell of radius 0.227 m has a total charge of 6.03 × 10 − 6 C placed on it.

KATRIN_1 [288]

Answer:

Explanation:

Given

radius $r=0.227 m$

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Point Charge inside sphere $q=1.15\times 10^{-6} C$

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Treating Surface charge as Point charge and applying Gauss law

$E_{total}A=\frac{q_{enclosed}}{\epsilon _0}$

where A=surface area up to distance r

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3 years ago

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2 years ago

Read 2 more answers

The drag force pushes opposite your motion as you ride a bicycle. If you double your speed, what happens to the drag force?

timurjin [86]

Answer: The drag force goes up by a factor of 4

Explanation:

The <u>Drag Force</u> equation is:

$F_{D}=\frac{1}{2}C_{D}\rho A_{D}V^{2}$ (1)

Where:

$F_{D}$ is the Drag Force

$C_{D}$ is the Drag coefficient, which depends on the material

$\rho$ is the density of the fluid where the bicycle is moving (<u>air in this case) </u>

$A_{D}$ is the transversal area of the body or object

$V$ the bicycle's velocity

Now, if we assume $C_{D}$ , $\rho$ and $A_{D}$ do not change, we can rewrite (1) as:

$F_{D}=C.V^{2}$ (2)

Where $C$ groups all these coefficients.

So, if we have a new velocity $V_{n}$ , which is the double of the former velocity:

$V_{n}=2V$ (3)

Equation (2) is written as:

$F_{D}=C.V_{n}^{2}=C.(2V)^{2}$

$F_{D}=4CV^{2}$ (4)

Comparing (2) and (4) we can conclude<u> the Drag force is four times greater when the speed is doubled.</u>

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3 years ago