3 years ago

You walk east for 10m then turn north 15m what is your displacementm

Physics

1 answer:

Doss [256]3 years ago

5 0

25m north east hope this helps

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The periodic table is an arrangment of the chemical elements, ordered by atomic number, into families, and by doing so illustrat

Gala2k [10]

Answer:

Solid at room temperature

Explanation

Since these elements are metals they must be said at room temperature

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3 years ago

A 1056-hertz tuning fork is struck at the same time as a note on the piano and you hear 2 beats/second. You tighten the piano st

elena-14-01-66 [18.8K]

Answer:

The frequency of the piano string is <em>1059 Hz</em>.

Explanation:

The frequency beat (fb), 2 beats/second, is the absolute difference between the frequency of the tuning fork (1056 Hz) and the frequency of the piano string.

As the piano string gets tightened, the frequency beat becomes 3 beats/second.

Therefore,

fb = $fb = fpiano - ftuning fork\\ 3 Hz=fpiano-1056Hz\\ fpiano=1056Hz+3Hz\\ fpiano=1059Hz$

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3 years ago

A river 800m wide flows at the rate of 5km/h . A swimmer who can swim at 10km/h in still water wants to cross the river straight

LuckyWell [14K]

Answer:

At an angle of $30^{\circ}$

Explanation:

Assume the river flows from East to West so for the swimmer to cross across it, assume he crosses it from West to East.

The resultant speed will be given by

$R= \sqrt {10^{2}-5^{2}=\sqrt {75}\approx 8.66 km/h\\Direction=sin^{-1}\frac {5}{10}\approx 30^{\circ}$

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3 years ago

1.)how is climate different from weather

Zolol [24]

(sorry I can only answer no. 1)
the climate is the weather over a long period of time (could be days, weeks, months, or years) while weather is only how the day has been on one day (e.g. sunny)

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3 years ago

What is the best matral or mechaniazime to use in a egg drop form 30 feet

DiKsa [7]

Answer:

Ok so there are many ways to go at this.

you can get a zip lock bag and put a bunch of plastic around the egg inside the bag. (image down below)

Just anything to slow down the descent speed.

Cushion the egg so that something other than the egg itself absorbs the impact of landing.

Explanation:

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2 years ago