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dedylja [7]
3 years ago
6

During a game of tug-of-war, one team exerts a force of 3,500 N to the left. The other team exerts a force of 3,800 N to the rig

ht. Which of the following statements is true about the game?
Select one:
a. The forces are balanced, and there will not be a winner.
b. The forces are unbalanced, and the second team will win.
c. The forces are balanced, and the first team will win.
d. The forces are unbalanced, and the first team will win.
Physics
2 answers:
NISA [10]3 years ago
8 0
B would be the correct answer.
Lunna [17]3 years ago
6 0
The answer is b hope this helps
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Explanation:

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a scale model of the solar system where 50 cm represents 1.0x10 to the fifth km is actual distance what would be the dimension o
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The distance between Mars and the Sun in the scale model would be 1140 m

Explanation:

In this scale model, we have:

x_1 = 50 cm represents an actual distance of

d_1 = 1.0\cdot 10^5 km

The actual distance between Mars and the Sun is 228 million km, therefore

d_2=228\cdot 10^6 km

On the scale model, this would corresponds to a distance of x_2.

Therefore, we can write the following proportion:

\frac{x_1}{d_1}=\frac{x_2}{d_2}

And solving for x_2, we find:

x_2=\frac{x_1 d_2}{d_1}=\frac{(50)(228\cdot 10^6)}{1\cdot 10^5}=1.14\cdot 10^5 cm = 1140 m

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Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from =7 to =1.
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1.549×10-19lJ is the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from =7 to =1.

The equation E= hcE =hc, where h is Planck's constant and c is the speed of light, describes the inverse relationship between a photon's energy (E) and the wavelength of light ().

The Rydberg formula is used to determine the energy change.

Rydberg's original formula used wavelengths, but we may rewrite it using units of energy instead. The result is the following.

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were

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The initial and ultimate energy levels are ni and nf.

As a change of pace from

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=2.178×10-18lJ×16/225

=1.549×10-19lJ

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<u>We are given:</u>

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