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Anton [14]
3 years ago
15

What might cause convection currents in a hot spring?

Physics
1 answer:
Aleks [24]3 years ago
7 0

Answer and explanation;

-The cause of convention currents in a hot spring is rainwater and melted snow is cool and denser and sinks to the bottom of the hot spring where it is heated by a shallow magma chamber. The heated water expands and is less dense and rises to the top.

Explanation;

-Convention Current is the movement of fluid caused by the differences in temperature. Transference of heat from one part of a fluid to another.

-Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth. In the atmosphere, as air warms it rises, allowing cooler air to flow in underneath.

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Why did fundamentalists feel threatened by new scientific knowledge?
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Because the fundamentalist interprets scriptures of the religion literally so new scientific knowledge has proven some of the events that happened in scriptures, that no one can comprehend in the old times. and the fundamentalist feel threatened because there are some of their beliefs are now contradicting
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An ice skater is in a fast spin with her arms held tightly to her body. When she extends her arms, which of the following statem
Genrish500 [490]

Answer:

A. Her total angular momentum has decreased

Explanation:

Total angular momentum is the product of her moment of inertia and angular velocity. In this scenario it doesn’t decrease but rather remains constant as the movement of the arms doesn’t have any effect on the total angular momentum.

The movement of the arm under certain conditions however has varying effects and changes on parameters such as the moment of inertia and the angular speed.

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3 years ago
The International Space Station (ISS) orbits Earth in a nearly circular orbit that is 345 km above Earth's surface.
Tems11 [23]

Answer:

1) v = 7.70 10³ m/s , 2) F = 115 N and 3)    (F/W)% = 90.2%

Explanation:

1) To solve the problem let's use Newton's second law where force is gravitational force and acceleration is centripetal

    F = ma.

    F = G m M / r²

    a = v² / r

    G m M / r² = m v² / r

    G M / r = v²

Let's look for the distance is the distance from the surface of the has to the station 345 103 m plus the radius of the Earth

    r = Re + 345 103

    r = 6.37 10⁶ + 3.45 10⁵

    r = 6.715 10⁶ m

Let's calculate the speed

   v = √ (6.67 10⁻¹¹ 5.98 10²⁴ / 6,715 10⁶) = √ (59,399 10⁶)

   v = 7.70 10³ m/s

The speed module is constant, so we can use the uniform motion relationships

   v = d / t

The distance is the length of the circle

   d = 2π r

   d = 2π 6.715 106

   d = 42.2 10⁶ m

Let's calculate the time

   t = d / v

   t = 42.2 10⁶ / 7.70 10³

   t = 5.48 10³ s

2) Let's use the universal gravitation equation

   F = G m M / r²

   F = 6.67 10⁻¹¹ 13.0  5.98 10²⁴ /(6.715 10⁶)²

   F = 11.5 10¹ N

   F = 115 N

3) in this for we are asked the relationship is out with the weight of the body on earth

   F / W = F / mg

   F / W = 115 / (13.0  9.8)

   F / W = 0.902

  F / W% = 90.2%

5 0
3 years ago
What instrument can you use to measure the circumference of your waist?
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<h2><em><u>Answer</u></em>:</h2>

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A tide of increased range that occurs during the new and full moons is called
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A tide of increased range that occurs during the new and full moons is called Spring Tide.
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