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Natali [406]
4 years ago
12

Which material would be BEST to use for heating up food? A) aluminum B) ceramic C) foam D) plastic Eliminate

Physics
2 answers:
mr_godi [17]4 years ago
8 0
Hello there!

Plastic is definitely off. Plastic can melt easily in extreme heat, and if it doesn't melt, the chemicals used to create it will seep into the food. D is false.

Aluminum is off too, if we're talking about heating up food in a microwave. Aluminum can spark in the heat and can catch fire/explode in most cases. So that would also be off.

Foam is off as well. Whether it be foam bubbles or foam board, it's probably NOT a good idea to hear up your food in the microwave with foam.

But ceramic would probably be the best choice. Ceramic is microwave safe, it doesn't melt, catch fire, or seep chemicals in the food when placed in that kind of heat. That is probably why a lot of manufacturers use ceramic glass to make plates and bowls in the first place.

So your answer should be B. Ceramic. Hope this helped you! :)

jonny [76]4 years ago
4 0

Answer:

Correct answer is option A (Aluminum)

Explanation:

 option A is correct because aluminum can be used both on stove and in Electric oven and it does not melt on heating and also aluminum is not harmful for health.

option B

Ceramic can only be used in microwave but it cannot be used on stove. If we use ceramic on stove it will break.

option C

Foam cannot be used on stove and it is not safe to use in microwave.

Option D

We cannot used plastic on stove because on heating plastic will melt and in microwave the chemicals which are used to create will contaminate the food.

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A box weighing 43.2 N is pulled horizontally until it slides uniformly lat a constant
GREYUIT [131]

Your diagram should include four forces:

• the box's weight, pointing down (magnitude <em>w</em> = 43.2 N)

• the normal force, pointing up (mag. <em>n</em>)

• the applied force, pointing the direction in which the box is sliding (mag. <em>p</em> = 6.30 N, with <em>p</em> for "pull")

• the frictional force, pointing oppoiste the applied force (mag. <em>f</em> )

The box is moving at a constant speed, so it is inequilibrium and the net forces in both the vertical and horizontal directions sum to 0. By Newton's second law, we have

<em>n</em> + (-<em>w</em>) = 0

and

<em>p</em> + (-<em>f</em> ) = 0

So then the forces have magnitudes

<em>w</em> = 43.2 N

<em>n</em> = <em>w</em> = 43.2 N

<em>p</em> = 6.30 N

<em>f</em> = <em>p</em> = 6.30 N

5 0
3 years ago
How is Newton’s 3rd law in baseball?
BaLLatris [955]

Answer:Explanation: According to Newton's third law, the force exerted by the bat hitting the ball will be equal in magnitude but opposite in direction of the force the ball exerts on the bat. Generally, your arms are stiff when you hit the ball forward, so you will not feel the bat "recoiling".

Explanation:

3 0
3 years ago
The electric field between the plates of the cathode ray tube of an older television set can be as high as 2.5x104 N/C. Determin
pentagon [3]

Answer:

(a) F = -4.01 * 10^{-15} N

(b) a = 4.40 * 10^{15} m/s^2

Explanation:

Parameter given:

Electric field, E = 2.5 * 10^4 N/C

(a) Electric force is given (in terms of electric field) as a product of electric charge and electric field.

Mathematically:

F = qE

Electric charge, q, of an electron = - 1.602 * 10^{-19} C

F = -1.602 * 10^{-19} * 2.5 * 10^4\\\\\\F = -4.01 * 10^{-15} N

(b) This electrostatic force causes the electron to accelerate with an equivalent force:

F = -ma

where m = mass of an electron

a = acceleration of electron

(Note: the force is negative cos the direction of the force is opposite the direction of the electron)

Therefore:

-ma =  -4.01 * 10^{-15} N\\\\\\a = \frac{-4.01 * 10^{-15}}{-m}

Mass, m, of an electron = 9.11 * 10^{-31} kg

=> a = \frac{-4.01 * 10^{-15}}{-9.11 * 10^{-31}}\\\\\\a = 4.40 * 10^{15} m/s^2

The acceleration of the electron is 4.40 * 10^{15} m/s^2

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AVprozaik [17]
The solution for this problem is:
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6 0
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