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skad [1K]
3 years ago
6

Please write a detailed explanation of Earth’s magnetic declination and explain how this has changed over time. (25 points)

Physics
2 answers:
anzhelika [568]3 years ago
6 0

Explanation:

i know the anwser

kari74 [83]3 years ago
5 0

Answer:

The earth has changed slot because people built houses,stores, business, buildings,and slot of other stuff. Also we have been pulluting our earth,thinking that people will clean it up for us. Since we all think this,our earth is getting dirty and gross. Before, none of this was happening,no people thinking others would clean it up, or no buildings, house's,stores or anything

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An object, initially at rest moves 250m in 17s. What is it's acceleration?
Gekata [30.6K]
With the values you've given, only velocity can be found.
Acceleration is rate of change of velocity

d= 250s
t= 17s

a= d/t
 =\frac{250}{17}
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8 0
2 years ago
Two students are standing on a fire escape, one twice as high as the other. Simultaneously, each drops a ball.
almond37 [142]
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3 years ago
The Steamboat Geyser in Yellowstone National Park shoots water into the air at 48.0 m/s. How
qwelly [4]

Answer:

The maximum height reached by the water is 117.55 m.

Explanation:

Given;

initial velocity of the water, u = 48 m/s

at maximum height the final velocity will be zero, v = 0

the water is going upwards, i.e in the negative direction of gravity, g = -9.8 m/s².

The maximum height reached by the water is calculated as follows;

v² = u² + 2gh

where;

h is the maximum height reached by the water

0 = u² + 2gh

0 = (48)² + ( 2 x -9.8 x h)

0 = 2304 - 19.6h

19.6h = 2304

h = 2304 / 19.6

h = 117.55 m

Therefore, the maximum height reached by the water is 117.55 m.

7 0
2 years ago
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umka21 [38]

Answer:

(d) Negative.

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let's test each at a time.

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(c) Equal to non-conservative work done by the car's engine.

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(d) this can't be true.

So the answer is (d) negative.

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