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3 years ago

In order for rejuvenation to take place in a stream, what must occur first?

1 answer:

7 0

The land over the stream flows must uplift - Rejuvenation is the process by which a stream r<span>enews its activity, erosive power, etc. by the uplift or removal of a barrier in the stream's bed. This lowers the base level of the stream and it so that it can begin its downward erosion again.</span>

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A compass needle acts as a(n)

beks73 [17]

Explanation:

A compass needle acts as a Magnet

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3 years ago

Science homework help

matrenka [14]

1. electrons
2. positive to negative
3. insulator
4. TRUE
5. closed circuit
6. TRUE
7. series
8. TRUE
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Hope this helps! :)

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3 years ago

A new pest is found that only feeds on corn plant leaves. Which promoter would you choose if the modified gene produces toxins t

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It is actually B. Promoter 2.

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3 years ago

Can a falling object reach terminal velocity in outer space? Explain.

Damm [24]

Ith air resistance acting on an object that has been dropped, the object will eventually reach a terminal velocity, which is around 53 m/s (195 km/h or 122 mph) for a human skydiver. ... (On the Moon, the gravitational acceleration is much less than on Earth, approximately 1.6 m/s2.)

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3 years ago

Some element can be either solid or liquid. At the melting point, the liquid has 8 × 10-22 J more enthalpy per atom than the sol

OlgaM077 [116]

Answer:

481.76 J/mol

133.33 K

Explanation:

$N_A$ = Avogadro's number = $6.022\times 10^{23}$

Change in enthalpy is given by

$\Delta H=8\times 10^{-22}\times 6.022\times 10^{23}\\\Rightarrow \Delta H=481.76\ J/mol$

Entropy is given by

$\Delta S=6\times 10^{-24}\times 6.022\times 10^{23}\\\Rightarrow \Delta S=3.6132\ J/mol K$

Latent heat of fusion is given by

$L_f=\Delta H\\\Rightarrow L_f=481.76\ J/mol$

The latent heat of fusion is 481.76 J/mol

Melting point is given by

$T_m=\dfrac{L_f}{\Delta S}\\\Rightarrow T_m=\dfrac{8\times 10^{-22}\times 6.022\times 10^{23}}{6\times 10^{-24}\times 6.022\times 10^{23}}\\\Rightarrow T_f=133.33\ K$

Melting occurs at 133.33 K

3 0

3 years ago