2 years ago

Which statement describes the chemical property of gold that results in its

Physics

1 answer:

makvit [3.9K]2 years ago

6 0

Answer:

Explanation:

Inert means it does not react with other things like oxygen ( to make oxide) or tarnish etc

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Suppose an oven's radiation wavelength is 0.125 m. a container with 350.00 g of water was placed in the oven, and the temperatur

ivann1987 [24]

The heat (energy) needed to raise the temperature of the water is given by
$Q=m C_S (T_f - T_i)=(350.0 g)(4.18 J/gC)(80C-20C)=87780 J$

The wavelength of the radiation of the oven is $\lambda=0.125 m$ , so the energy of a single photon of this radiation is
$E=h \frac{c}{\lambda}=(6.6 \cdot 10^{-34}J) \frac{3\cdot 10^8 m/s}{0.125 m}=1.6 \cdot 10^{-24} J$

So, the number of photons required to heat the water is the total energy absorbed by the water divided by the energy of a single photon:
$N= \frac{Q}{E}= \frac{87780 J}{1.6\cdot 10^{-24}J}= 5.5 \cdot 10^{28}$ photons

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3 years ago

In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 6.40 m

Elden [556K]

Answer:

25 degrees above the horizontal.

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3 years ago

Begin any simulation, and turn on Gravity Force in the central menu on the right. The gravity force arrow shows the direction an

Katyanochek1 [597]

Answer:

The gravity arrow for each body rotates, always pointing toward the other body. Both arrows grow longer when the bodies come closer to one another and shorter when they move farther apart. This change shows that the gravitational force is stronger the closer together the bodies are.

Explanation:

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3 years ago

What is the lowest temperature that a substance can reach

irina1246 [14]

It's known as Absolute Zero. On the Kelvin scale, 0 is the lowest that anything can reach in temperature. It's supposedly impossible to reach, but it's the known limit.

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3 years ago

Read 2 more answers

The diagram below shows a circuit with a

kirill [66]

Answer:

15v

Explanation:

V = IR

= 0.3*50

= 15V.

I HOPE IT'S HELPFUL

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3 years ago