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kvasek [131]
3 years ago
6

Which statement describes why ocean currents are considered convection currents?

Physics
2 answers:
Nataly_w [17]3 years ago
7 0

I think its B B)Warm water rises and cold water moves in to replace it.

hichkok12 [17]3 years ago
4 0

Answer: The correct answer is Option B.

Explanation:

Convection process is one of the mode of heat transfer. In this process heat transfer takes place when there is a movement of fluid (liquid or gas).

Convection occurs in ocean currents due to the heat up of oceanic waters  making it less dense. This water travel above the cooler water and thus give off its heat to the environment surrounding it. As the water cools, it then starts  to sink, and the process continues.

Convection results due to the continual circulation of ocean water. In simpler terms, warm water rises up and cold water moves in to replace it.

Hence, the correct option is B.

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A turtle accelerates from a stop at 3m/s/s to the South for 8s. What is the turtle’s final velocity? Show your work and include
andrey2020 [161]

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2 years ago
How much work is done when a 100 N force moves a block 59 m?
xxTIMURxx [149]

Answer:

5900J

Explanation:

Work=Forse*Distance

work = J, Jewls

100*59=5900

Hop this helps and can u think about brainlist

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3 years ago
What is the mechanical advantage of a pulley system​
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Pulleys accomplish 2 separate operations throughout the computer controlled additional benefit technologies listed elsewhere here.

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A 1,500-kg car accelerates along a flat track to a speed of 20 m/s. how much does it's gravitational potential energy increases
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2 years ago
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is W/m². What is the rms
inn [45]

I think your question should be:

An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is

S = 1.23*10^9 W/m^2

What is the rms value of (a) the electric field and

(b) the magnetic field in the electromagnetic wave emitted by the laser

Answer:

a) 6.81*10^5 N/c

b) 2.27*10^3 T

Explanation:

To find the RMS value of the electric field, let's use the formula:

E_r_m_s = sqrt*(S / CE_o)

Where

C = 3.00 * 10^-^8 m/s;

E_o = 8.85*10^-^1^2 C^2/N.m^2;

S = 1.23*10^9 W/m^2

Therefore

E_r_m_s = sqrt*{(1.239*10^9W/m^2) / [(3.00*10^8m/s)*(8.85*10^-^1^2C^2/N.m^2)]}

E_r_m_s= 6.81 *10^5N/c

b) to find the magnetic field in the electromagnetic wave emitted by the laser we use:

B_r_m_s = E_r_m_s / C;

= 6.81*10^5 N/c / 3*10^8m/s;

B_r_m_s = 2.27*10^3 T

8 0
3 years ago
Read 2 more answers
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