3 years ago

What is the term for the process by which a portion of a glacier breaks off and falls into the water

Physics

1 answer:

zhenek [66]3 years ago

6 0

The term for the process by which a portion of a glacier breaks off and falls into the water is called calving.

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spin [16.1K]

Answer:

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Explanation:

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3 years ago

Two electrodes connected to a 9.0 v battery are charged to ±45 nc. What is the capacitance of the electrode?

mart [117]

Answer:

$5\cdot 10^{-9} F$

Explanation:

The capacitance of the electrode is given by:

$C=\frac{Q}{V}$

where

C is the capacitance

Q is the charge on the electrode

V is the potential difference

In this problem, we have

$Q=45 nC=45\cdot 10^{-9} C$

V = 9.0 V

Substituting into the equation, we find

$C=\frac{45\cdot 10^{-9}C}{9.0 V}=5\cdot 10^{-9} F$ (5 nF)

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Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a const

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Answer:

$\frac{dA}{dt} = 188.5 m^2/s$

Explanation:

As we know that area of the circle at any instant of time is given as

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now in order to find the rate of change in area we will have

$\frac{dA}{dt} = 2\pi r\frac{dr}{dt}$

here we know that

rate of change of radius is given as

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radius of the circle is given as

$r = 30 m$

now we have

$\frac{dA}{dt} = 2\pi (30)(1)$

$\frac{dA}{dt} = 60\pi$

$\frac{dA}{dt} = 188.5 m^2/s$

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