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irakobra [83]
3 years ago
7

Deep ocean currents form when denser ocean water sinks. The flow of deep currents is also affected by the Coriolis effect and by

continental deflection.
What is the order in which deep ocean currents will form?


a. Water cools and becomes more dense. Dense water sinks towards the ocean floor. Warm surface currents flow toward the polar region. Energy from the warm water is transferred to the cooler atmosphere.

b. Warm surface currents flow toward the polar region. Energy from the warm water is transferred to the cooler atmosphere. Water cools and becomes more dense. Dense water sinks towards the ocean floor.

c. Water cools and becomes more dense. Warm surface currents flow toward the polar region. Dense water sinks towards the ocean floor. Energy from the warm water is transferred to the cooler atmosphere.

d. Energy from the warm water is transferred to the cooler atmosphere. Water cools and becomes more dense. Dense water sinks towards the ocean floor. Warm surface currents flow toward the polar region.
Physics
1 answer:
patriot [66]3 years ago
4 0
What did his mother tell him about the worm

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An ice skater has a moment of inertia of 2.5 kg.m2 when her arms are extended and a moment of inertia of 1.2 kg.m2 when her arms
Damm [24]

Answer:

\omega=4.7916\ rad.s^{-1}

Explanation:

Given:

  • moment of inertia of the skater with extended arms, I'=2.5\ kg.m^2
  • moment of inertia of the the skater with pulled-in arms, I=1.2\ kg.m^2
  • angular velocity of the skater with extended arms, \omega'=2.3\ rad.s^{-1}

<u>Using the law of conservation of angular momentum:</u>

I'.\omega'=I.\omega

2.5\times 2.3=1.2\times \omega

\omega=4.7916\ rad.s^{-1}

6 0
3 years ago
A singly charged 7Li ion has a mass of 1.16 10-26 kg. It is accelerated through a potential difference of 523 V and subsequently
mel-nik [20]

Answer:

R=0.023m

Explanation:

From the question we are told that:

Mass m=1.16*10^{-26}

Potential difference V=523V

Magnitude m=0.370 T

Generally the equation for Velocity is mathematically given by

\frac{1}{2}mv^2=ev

v=\frac{2ev}{m}

v=\frac{2*1.6*10^{-19}*542}{1.16*10^{-26}}

v=12.22*10^4m/s

Generally the equation for Force is mathematically given by

F=qvBsin \theta

Where

qVB=m\frac{v^2}{R}

F=m\frac{v^2}{R}sin\theta

Therefore

R=\frac{mv}{qB sin \theta}

R=\frac{1.6*10^{-26}*12.2*10^{4}}{1.60*10^{-19}*0.394 sin 90}

R=0.023m

8 0
3 years ago
A small rock with mass 0.12 kg is fastened to a massless string with length 0.80 m to form a pendulum. The pendulum is swinging
bekas [8.4K]

Answer:

The answers to the question are

(a) 2.1 m/s

(b) 0.83 N

(c) 1.9 N

Explanation:

To solve the question, we list out the varibles

Length, l of string = 0.8 m

mass of rock, m = 0.12 kg

Angle with the verrticakl, θ = 45 °

a) To find the speed of the rock  when the string passes through the vertical position we have

From the first law of thermodynamics

Potential energy = kinetic energy

m×g×l×(1-cosθ) = 1/2×m×v²

That is v² = 2×g×l×(1-cosθ)

= 2×9.81×0.8×(1-cos45) = 4.597

or v = √4.597 = 2.1 m/s

(b) The tension in the string when it makes an angle of  45∘ with the vertical is given by

For balance between Tension and mass of rock is gigen by

∑Forces = 0, T - m×g×cosθ = 0

or T =  m×g×cosθ = 0.12×9.81×cos45 = 0.83 N

c) The tension in the string as it passes through the vertical

when passing through the vertical we have T - m×g = (m×v²)/r

or T = m×g + (m×v²)/r = mg(1+2(1-cosθ)) =0.981*0.12 (1+ 2(1-cos45)) =1.867 N

= 1.9 N

3 0
3 years ago
How do various factors affect climent
Svetllana [295]

Answer:

<u>The factors affecting climate are latitude, altitude, land and water distribution, distance from the sea, distance from the sun, prevailing winds and ocean currents, surface covering the land, volcanism, solar constant sunspots, wind direction and nature of mountain chains, mountain barriers.</u>

6 0
3 years ago
Read 2 more answers
A single slit is illuminated by light of wavelengths λa and λb, chosen so that the first diffraction minimum of the λa component
agasfer [191]

Answer:

λ_A = 700 nm ,   m_B = m_a 2

Explanation:

The expression that describes the diffraction phenomenon is

         a sin θ = m λ

where a is the width of the slit, lam the wavelength and m an integer that writes the order of diffraction

a) They tell us that now lal_ A m = 1

         a sin θ = λ_A

coincidentally_be m = 2

          a sin  θ = m λ_b

as the two match we can match

         λ _A = 2 λ _B

         λ_A = 2 350 nm

         λ_A = 700 nm

b)

For lam_B

       a sin  λ_A  = m_B  λ_B

For lam_A

        a sin θ_A = m_ λ_ A

to match they must have the same angle, so we can equal

           m_B  λ_B = m_A  λ_A

           m_B = m_A  λ_A / λ_B

           m_b = m_a 700/350

           m_B = m_a 2

8 0
3 years ago
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