Is there a benefit to cooking in a regular oven compared to a convection oven? Why??

Answers

Answer 1
Answer: Yes there is a benefit it is that a regular oven is faster at cooking because it can go to higher tempatures
Answer 2
Answer: convectional oven has a lower rate of acceleration, why regular oven has a faster rate. 

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Dense substances sinking into Earth's core heated Earth's interior through _________.A. frictionB. volcanismC. radioactive decayD. mantle convection
A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?

How do the dark lines of an atom''s absorption spectrum relate to the bright lines of its emission spectrum?a. The bright lines are at the same energies as the dark lines.
b. The dark lines are at higher energies than the bright lines.
c. The bright lines are at higher energies than the dark lines.
d. You cannot relate the two types of spectra.

Answers


Wouldn't it be neat if an electron falling closer to the nucleus ... emitting a
photon ... actually gave out more energy than it needed to climb to its original
energy level by absorbing a photon !   If there were some miraculous substance
that could do that, we'd have it made.

All we'd need is a pile of it in our basement, with a bright light bulb over the pile,
connected to a tiny hand-crank generator.

Whenever we wanted some energy, like for cooking or heating the house, we'd
switch the light bulb on, point it towards the pile, and give the little generator a
little shove.  It wouldn't take much to git 'er going.

The atoms in the pile would absorb some photons, raising their electrons to higher
energy levels.  Then the electrons would fall back down to lower energy levels,
releasing more energy than they needed to climb up.  We could take that energy,
use some of it to keep the light bulb shining on the pile, and use the extra to heat
the house or run the dishwasher.

The energy an electron absorbs when it climbs to a higher energy level (forming
the atom's absorption spectrum) is precisely identical to the energy it emits when
it falls back to its original level (creating the atom's emission spectrum).

Energy that wasn't either there in the atom to begin with or else pumped
into it from somewhere can't be created there.

You get what you pay for, or, as my grandfather used to say, "For nothing
you get nothing."

Final answer:

The dark absorption lines of an atom's spectrum correspond to the same energies as the bright emission lines. They both reflect energy changes in electron states.

Explanation:

The dark lines of an atom's absorption spectrum are at the same energies as the bright lines of its emission spectrum, therefore the correct answer is a. The bright lines are at the same energies as the dark lines. Absorption spectra are produced when electrons absorb energy and move to a higher energy level, while emission spectra are observed when electrons lose energy and return to a lower energy level.

The dark lines (absorption) and bright lines (emission) coincide because the energy required to move an electron from a lower to higher energy level matches the energy released when an electron drops from a higher to lower state.

Learn more about Absorption and Emission Spectra here:

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PLEASE WILL GIVE BRAINLIEST

Answers

Answer:

B im pretty sure

Explanation:

Pretty sure it is B

PLEASE HELP*******use the table to find the acceleration of the object for the time interval 1.0 to 4.0 seconds ​

Answers

Answer:

acceleration for time interval from 1 sec to 4 second is 1.5 metre/second^2

mark it as brainliest!!

A drag racer starts her car from rest and accelerates at 11.9 m/s2 for the entire distance of 400 m. What is the speed of the race car at the end of the run?

Answers

Speed of the race car at the end of the run is 97.57 m/s

Explanation:

We have equation of motion v² = u² + 2as

Initial velocity, u = 0 m/s  

Acceleration, a = 11.9 m/s²  

Final velocity, v = ?

Displacement,s = 400 m

Substituting  

v² = u² + 2as

v² = 0² + 2 x 11.9 x 400

v = 97.57 m /s

Speed of the race car at the end of the run is 97.57 m/s

A 1.7-kg block of wood rests on a rough surface. A 0.011-kg bullet strikes the block with a speed of 670 m/s and embeds itself. The bullet-block system slides forward 2.4 m before coming to rest.

Answers

What is the coefficient of kinetic friction between the block and the surface?  Express your answer using two significant figures.

Answer:

0.39

Explanation:

Given information

m1=1.7 Kg

m2=0.011 Kg

v2=670 m/s

d=2.4 m

m2v2=(m1+m2)v hence v=\frac {m2v2}{m1+m2} and also a=\frac {v^(2)}{2d}

The deceleration due to friction is given by

F=\mu_k N=\mu_k W=\mu_k (m1+m2)g

F=(m1+m2)a=\mu_k (m1+m2)g therefore a=\mu_k g

Therefore, a=\frac {v^(2)}{2d}=\mu_k g

\mu_k=\frac {1}{2dg}(\frac {m2v}{m1+m2})^(2)=\frac {1}{2*2.4*9.81}* (\frac {0.011*670}{1.7+0.011})^(2)

\mu_k=0.39

Why is the water vapor fresh water when it rises from the ocean?

Answers

Because when the water is heated by the sun, the salt sinks to the bottom. 
leaves the salt behind