3 years ago

Where is this earthquake's epicenter?

Physics

2 answers:

Olegator [25]3 years ago

7 0

The answer would be Beijing, China.

Studentka2010 [4]3 years ago

4 0

The correct answer is C

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A flea jumps straight up to a maximum height of 0.400 m . what is its initial velocity v0 as it leaves the ground?

timama [110]

For an object`s motion, the Kinematic equation is,

$v^2=v_{0}^2+2ah$

Here, v is the final velocity and h is stands for the height of the object and a is the acceleration of the object.

As according to question,

$v=0m/s,a=g-9.8 m/s^2$ and $h = 0.400 m$

Thus, putting these values in above equation, we get

$0= v_{0}^2 -2gh$

$v_{0} =\sqrt{2 \times 9.8 \times 0.400 }$

$v_{0} = 2.8 m/s$

Therefore, initial velocity is 2.8 m/s

8 0

3 years ago

How much heat is absorbed by a 67g iron skillet when its temperature rises from 8C to 94C? ___ Joules

Katen [24]

I googled the specific heat capacity for iron so it might be off to the value you might have used, bit it should be close.

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3 years ago

Represent 7468 N with SI units having an appropriate prefix. Express your answer to four significant figures and include the app

sergeinik [125]

Answer:

7.468 kN

Explanation:

Here the force of 7468 Newton is given.

Some of the prefixes of the SI units are

kilo = 10³

Mega = 10⁶

Giga = 10⁹

The number is 7468.0

Here, the only solution where the number of significant figures is kilo

1 kilonewton = 1000 Newton

$1\ Newton=\frac{1}{1000}\ kilonewton$

$\\\Rightarrow 7468\ Newton=\frac{7468}{1000}\ kilonewton\\ =7.468\ kilonewton$

So 7468 N = 7.468 kN

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2 years ago

What happens to reactants when a chemical reaction takes place?

yanalaym [24]

Answer:

they collide with one another

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2 years ago

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Which form of erosion has abrasion and deflation

mixer [17]

The answer is Wind erosion

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3 years ago