Hi there!
Recall Newton's Second Law:
∑F = Net force (N)
m = mass (kg)
a = acceleration (m/s²)
We are already given the mass and acceleration, so we can plug these values into the equation:
∑F = 1600 · 4.5 = 7200 N
Timed please hurry
2 answers:
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Answer:
She is not getting a good deal.
Explanation:
The equation that relates heat with mass, specific heat and temperature change of an object is .
Always convert temperature to Kelvin, although in our case it's not necessary because the will be the same, and we will leave the mass in grams because we will be getting
units for specific heat, which we can compare to the one given for gold.
We then calculate the specific heat of the object in question:
Which shows it's not gold.