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denis23 [38]
3 years ago
5

Use complete sentences to explain the relationship between the Earth's crust and the Earth's ocean sizes.

Physics
1 answer:
MariettaO [177]3 years ago
3 0
The relationship between the earths crust and the ocean sizes is <span>So much of the Earth is hidden from view. You see some of the rocky crust, but that’s only 1 percent of the Earth’s mass. Beneath the crust is the dense, semisolid mantle, which accounts for 84 percent. The rest of the planet’s mass is the core, with a solid center and a liquid outer layer. The crust and the very top of the mantle make up the lithosphere. This solid portion of the Earth has been identified because it continually moves in slow motion.</span>
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a car travel the first 20km with a speed of 40km/h and the next 40km with a speed of 80km/h . find the average speed​
REY [17]

Answer:

average speed is 60km/h

Explanation:

you sum up the speed attained in each distance covered and divide it by 2 to get your answer

3 0
3 years ago
A ramp leading to the entrance of a building is inclied upward at an angle of 7 degree. A suitcase is to be pulled up the ramp b
photoshop1234 [79]

Explanation:

The angle of the handle relative to the horizontal is 35°.  The angle of the ramp to the horizontal is 7°.  So the angle of the handle relative to the ramp is 28°.

cos 28° = 50 / F

F = 50 / cos 28°

F = 56.6 lbs

8 0
3 years ago
If a vibrating string is made shorter (i.e., by holding your finger on it), what effect does
Ghella [55]
  <span>Pitch and frequency are more or less the same thing - high pitch = high frequency. 
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4 0
3 years ago
(II) You buy a 75-W lightbulb in Europe, where electricity is delivered at 240 V. If you use the bulb in the United States at 12
Elodia [21]

Answer:

Explanation:

You are looking for the resistance to start with

W = E * E/R

75 = 240 * 240 / R

75 * R = 240 * 240

R = 240 * 240 / 75

R = 57600 / 75

R = 768

Now let's see what happens when you try putting this into 110

W = E^2 / R

W = 120^2 / 768

W = 18.75

So the wattage is rated at 75. 18.75 is a far cry from that. I think they intend you to set up a ratio of

18.75 / 75 = 0.25

This is the long sure way of solving it. The quick way is to realize that the voltage is the only thing that is going to change. 120 * 120 / (240 * 240) = 1/2*1/2 = 1/4 = 0.25

4 0
3 years ago
Most earthquakes happen:
umka2103 [35]

Along plate edges, at points where oceanic or continental plates meet ot at the edges of the plates

4 0
3 years ago
Read 2 more answers
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