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marishachu [46]
3 years ago
13

Choosing to run so that you can become a better runner is an example of which fitness principle?

Physics
2 answers:
Svetllana [295]3 years ago
7 0
The answer is specificity. You are selecting a specific exercise option that is directed to be relevant to improve your goal.<span />
Nitella [24]3 years ago
5 0
Specificity, hopefully this helps

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A tennis ball with mass m travelling west,hits a wall with a velocity of v.It bounces back with a velocity 1 ,63 v an easterly d
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Answer:

163 v an easterly direction

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Emilio tries to jump to a nearby dock from a canoe that is floating in the water.Instead of a canoe that is floating in the wate
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The lower atmosphere is mostly warmed by radiated heat from Earth's surface. However, water heats up and cools down more slowly
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The answer is B. On a sunny day, the air over a lake will be cooler than the air over the bordering land.
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3 years ago
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A 15.0 Ohms resistor is connected in series to a 120V generator and two 10.0 Ohms resistors that are connected in parallel to ea
Nostrana [21]

Hi there! :)

Reference the diagram below for clarification.

1.

We must begin by knowing the following rules for resistors in series and parallel.

In series:
R_T = R_1 + R_2 + ... + R_n

In parallel:
\frac{1}{R_T} = \frac{1}{R_1} + \frac{1}{R_2} + ... + \frac{1}{R_n}

We can begin solving for the equivalent resistance of the two resistors in parallel using the parallel rules.

\frac{1}{R_{T, parallel}} = \frac{1}{10} + \frac{1}{10}\\\\\frac{1}{R_{T, parallel}} = \frac{2}{10} = \frac{1}{5}\\\\R_{T, parallel} = 5\Omega

Now that we have reduced the parallel resistors to a 'single' resistor, we can add their equivalent resistance with the other resistor in parallel (15 Ohm) using series rules:
R_T = 15 + 5\\\\\boxed{R_T = 20 \Omega}

2.

We can use Ohm's law to solve for the current in the circuit.

i = \frac{V}{R_T}\\\\i = \frac{120}{20} = \boxed{6 A}

3.

For resistors in series, both resistors receive the SAME current.

Therefore, the 15Ω resistor receives 6A, and the parallel COMBO (not each individual resistor, but the 5Ω equivalent when combined) receives 6A.

In this instance, since both of the resistors in parallel are equal, the current is SPLIT EQUALLY between the two. (Current in parallel ADDS UP). Therefore, an even split between 2 resistors of 6 A is <u>3A for each 10Ω resistor</u>.

4.

Since the 15.0 Ω resistor receives 6A, we can use Ohm's Law to solve for voltage.

V = iR\\\\V = (6)(15) = \boxed{90 V}

4 0
2 years ago
Match each phrase to the form of energy it represents. Tiles chemical potential energy electric energy vibrational energy motion
alex41 [277]
<span><span>fuel in a car's gas tank- Chemical Potential Energy</span><span>flash of lightning- Radiant Energy </span><span>storm clouds- Electric Energy</span><span>vocalist singing- Vibrational Energy  </span><span>recording sound with a microphone- Electric Potential Energy</span><span>raindrops falling- Motion Energy
HOPE THIS HELPED :)
</span></span>
5 0
3 years ago
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