A Chef is looking for a new frying pan that will allow her to cook food quickly at temperatures above 500°C. Use the data provid
ed in the table to explain to the Chef which metal would be the best choice for a new frying pan for her kitchen.
What is your claim? Which metal is the best choice? (
What is your evidence?
What is your reasoning?
What is your claim? Which metal is the best choice? (
What is your evidence?
What is your reasoning?
1 answer:
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Answer:
Object 3 has greatest acceleration.
Explanation:
Objects Mass Force
1 10 kg 4 N
2 100 grams 20 N
3 10 grams 4 N
4 1 kg 20 N
Acceleration of object 1,
Acceleration of object 2,
Acceleration of object 3,
Acceleration of object 4,
It is clear that the acceleration of object 3 is and it is greatest of all. So, the correct option is (3).
1) Current in each bulb: 0.1 A
The two light bulbs are connected in series, this means that their equivalent resistance is just the sum of the two resistances:
And so, the current through the circuit is (using Ohm's law):
And since the two bulbs are connected in series, the current through each bulb is the same.
2) 4 W and 8 W
The power dissipated by each bulb is given by the formula:
where I is the current and R is the resistance.
For the first bulb:
For the second bulb:
3) 12 W
The total power dissipated in both bulbs is simply the sum of the power dissipated by each bulb, so: