3 years ago

Before the widespread use of computers, how was the epicenter of an earthquake determined?

2 answers:

7 0

Data was used from three different stations. Where their data overlapped was where the epicenter was located.
it is called triangulation

STALIN [3.7K]3 years ago

7 0

Data was used from three different stations. Where their data overlapped was where the epicenter was located.

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In the Biomedical and Physical Sciences building at MSU there are 135 steps from the ground floor to the sixth floor. Each step

Kipish [7]

Answer:

W = 16.4 kJ

Explanation:

Given that,

There are 135 steps from the ground floor to the sixth floor.

Each step is 16.6 cm tall.

The mass of a person, m = 73.5 kg

We need to find the work done by the person. We know that,

Work done = Fd

Where

d is the displacement, d = 135 × 0.166 = 22.41

So,

W = 73.5 × 10 × 22.41

= 16471.35 J

W = 16.4 kJ

So, 16.4 kJ is the work done by the person.

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adoni [48]

Answer:

Explanation:i think but dont get mad if im wrong

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3 years ago

Two point charges, initially 2.0 cm apart, experience a 1.0 N force. If they are moved to a new separation of 0.25 cm, what is t

den301095 [7]

Explanation:

Th electric force between charges is inversely proportional to the square of distance between them. It means,

$F\propto \dfrac{1}{r^2}$

Initial distance, r₁ = 2 cm

Final distance, r₂ = 0.25 cm

Initial force, F₁ = 1 N

We need to find the electric force between charges if the new separation of 0.25 cm. So,

$\dfrac{F_1}{F_2}=(\dfrac{r_2}{r_1})^2\\\\F_2=\dfrac{F_1r_1^2}{r_2^2}\\\\F_2=\dfrac{1\times 2^2}{(0.25)^2}\\\\F_2=64\ N$

So, the new force is 64 N if the separation between charges is 64 N.

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Is a glacier nothing more than a huge mineral flowing downhill?

NNADVOKAT [17]

Yes. A glacier is nothing more than a huge mineral flowing downhill.

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Chemical messengers that stimulate a specific cellular response.

lisov135 [29]

Answer:

Explanation:

hormones. please mark me brainliest

4 0

2 years ago

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