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pychu [463]
3 years ago
10

Why is it important to warm up your muscles before a workout?

Physics
2 answers:
ohaa [14]3 years ago
8 0
So you could grow and stay healthy
slava [35]3 years ago
7 0

Answer: So that you don't have a cramp

Explanation: Muscles can cramp up if not stretched becuase it keeps the muscles flexable and strong and to maintain the range of motion a person has.

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Two loudspeakers are placed next to each other and driven by the same source at 500 Hz. A listener is positioned in front of the
stellarik [79]

To solve this problem we will apply the concepts related to wavelength as the rate of change of the speed of the wave over the frequency. Mathematically this is

\lambda = \frac{v}{f}

Here,

v = Wave velocity

f = Frequency,

Replacing with our values we have that,

\lambda = \frac{340}{500}

\lambda = 0.68m

The distance to move one speaker is half this

\lambda/2 = 0.34m

Therefore the minimum distance will be 0.34m

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3 years ago
If two cars are 5 m apart, and one car has a mass of 2,565 kg and the other
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A garden hose attached with a nozzle is used to fill a 10‐ gal bucket. The inner diameter of the hose is 2 cm, and it reduces to
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Answer:

Explanation:

Given

Volume of bucket V=10\ gallon

Time taken to fill the bucket t=50\ s

so volume flow rate is \dot{V}=\frac{10}{50}=0.2\ gal/s

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\dot{V}=0.0267\ ft^3/s

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v_{avg}=\dfrac{0.0267}{\frac{\pi}{4}\times (0.0262)^2}

v_{avg}=49.51\ ft/s

8 0
3 years ago
Juan makes an adjustment to an electromagnet that causes the electromagnet to lose some of its strength. What did Juan most like
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Reducing the amount of loops will cause a loss of strength, as the loops make the magnet stronger.
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