2 years ago

I need help with 03.01 Playing With Others – President's Challenge Goals

Physics

1 answer:

galben [10]2 years ago

4 0

Answer:

is this like a book orsomthing

Explanation:

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What is the amount of thermal energy needed to raise the temperature of 1 of a substance by ?

Goryan [66]

Answer:

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Explanation:

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3 years ago

A runner completes the 200-meter dash with a time of 19.80 seconds. What was the runner's average speed in miles per hour?

andriy [413]

Answer:

v = 22.54 mph.

Explanation:

Given that,

Distance moved, d = 200 m

Time, t = 19.8 s

We need to find the runner's average speed.

We know that,

1 mile = 1609.34 m

200 m = 0.124 miles

19.8 seconds = 0.0055 h

So,

Speed = distance/time

$v=\dfrac{0.124}{0.0055}\\\\v=22.54\ mph$

So, the runner's average speed is 22.54 mph.

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3 years ago

In order to go in a circle at a constant speed an object needs

maxonik [38]

Answer:

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Explanation:

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According to Boyle’s law, PV= K, what was the volume at the time of the first measurement given the following information? Round

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A fixed-geometry supersonic inlet starts at a Mach number of 3. After starting, the cruise Mach number is 2, and the operating s

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Answer:

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