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Tamiku [17]
3 years ago
14

A typical electric oven has two separate heating elements: one on top and one on the bottom. The bottom element is used for baki

ng while the top element is used to broil foods. When only the bottom element is active and glowing red hot, what heat transfer mechanisms carry most of the heat to the food in the oven?
Physics
1 answer:
Hunter-Best [27]3 years ago
3 0

Answer:

Convection and Radiation mechanisms carry most of the heat

Explanation:

This is because Convection proceeds strongy as heated air rises from the hot element while Radiation is also strong, although the material of the cooking pots will how effective it is.

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A 1kg mass is thrown to a height of 2cm. what is the potential energy​
prohojiy [21]
  • Mass=m=1kg
  • Height=h=2cm=0.02m
  • Acceleration due to gravity=g=10m/s^2

\\ \tt\hookrightarrow P.E=mgh

\\ \tt\hookrightarrow PE=1(10)(0.02)

\\ \tt\hookrightarrow PE=0.2J

4 0
2 years ago
Read 2 more answers
What is the electric force acting between two charges of 0.0072 C and -0.0060 C that are 0.0040 m apart?
telo118 [61]
Answer:
F = -2.4 * 10¹⁰ N

Explanation:
To get the electric force between two charges, we would use Coulomb's law which states that:
F = \frac{k * q1 * q2}{d^{2} }

where:
F is the force between the two charges
k is Coulomb's constant = 9 * 10⁹ Nm²/C²
q1 is the first charge = 0.0072 C
q2 is the second charge = -0.006 C
d is the distance between the two charges = 0.004 m

Substitute with the givens in the above formula to get the force between the two charges as follows:
F = \frac{9*10^9*0.0072*-0.006}{(0.004)^2}

F = -2.4 * 10¹⁰ N

Hope this helps :)
8 0
3 years ago
What is the difference between a mechanical wave and an electromagnetic wave? A mechanical wave travels through empty space, whi
sertanlavr [38]

Answer: The correct answer is "A mechanical wave travels through matter, while an electromagnetic wave travels through empty space".

Explanation:

The difference between a mechanical wave and an electromagnetic wave are as follows:

Electromagnetic waves are produced by the vibrations of the charged particles while the mechanical waves are caused by the wave amplitude.

Electromagnetic wave does not need medium while the mechanical wave need medium to travel. Mechanical wave can travel in solid, liquid and gas. Electromagnetic wave travels in vacuum.

Therefore, a mechanical wave travels through matter, while an electromagnetic wave travels through empty space.

7 0
4 years ago
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Gauss’s law of magnetism states that the net magnetic flux through any closed surface is zero.
vesna_86 [32]

Answer:

True

Explanation:

Gauss's law:

It is one of the Maxwell's equations which are the foundation of Electrodynamics. According to this law magnetic field has zero divergence and magnetic monopole can't exist. Inside a closed surface, the magnetic flux inward at the south pole will be exactly equal to the outward magnetic flux at the north pole of the magnetic dipole. Thus, the net magnetic flux will be zero.

5 0
3 years ago
Help in question a and b
Mkey [24]
Can you write out the question please? :) Sorry, i don't see it on the paper
8 0
3 years ago
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