2 years ago

162 x [ 6 ( 7 x 4²) ] I got 108,864, Is this correct?

Physics

1 answer:

Akimi4 [234]2 years ago

3 0

The answer is correct

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As the earth rotates through one revolution, a person standing on the equator traces out a circular path whose radius is equal t

mrs_skeptik [129]

Answer:

The average speed will be "1038 mph".

Explanation:

Period for one revolution is:

T = 24 hours

= 86,400 sec

x = c = 2πr

The given values is:

r = 6.38×10⁶ m

Now,

⇒ $T=\frac{2 \pi r}{v}$

Or,

⇒ $v=\frac{2 \pi r}{T}$

On substituting the values, we get

$=\frac{2 \pi (6.38\times 10^6)}{86,400}$

$=464 \ min/sec$

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2 years ago

During a race, a runner runs with an average velocity of 4.26 m/s toward city hall. What is the runner’s displacement after 167s

Artyom0805 [142]

Answer:

d = 711.42 m

Explanation:

Given that,

The average velocity of a runner, v = 4.26 m/s

Time, t = 167 s

We need to find the runner's displacement.

The average velocity of an object is equal to the displacement per unit time. It can be given by :

$v=\dfrac{d}{t}\\\\d=vt\\\\d=4.26\ m/s\times 167\ s\\\\d=711.42\ m$

So, the runner's displacement is 711.42 m.

3 0

2 years ago