Answer:
The answer is A
Explanation:
That is the only answer that even remotely resembles an ultrasound hope this answered your question.
The weight of the 3 lb roast purchased by the housewife is 1,360.78 grams.
<h3>What is weight?</h3>
The weight of an object is the force acting on the object due to gravity.
The weight of an object varies from place to place across the globe due to difference in acceleration due to gravity.
<h3>Weight of the roast in grams</h3>
1 lb ------------> 453.592 grams
3 lb ------------> ?
= (3 x 453.592)
= 1,360.78 grams
Thus, the weight of the 3 lb roast purchased by the housewife is 1,360.78 grams.
Learn more about weight here: brainly.com/question/2337612
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The answer is Law of _conservation_ of Energy
Thermal means heat, so you would need to calculate the heat from both of them.
The correct option is C.
Because different elements have different masses, they also end up having different number of energy levels. Different elements emit different emission spectra when they are excited because of their unique energy levels. Each emission spectra has different color. Scientists can easily analyze the composition of a matter by analyzing its spectrum.