D. write down the coefficients
A and D are definitely wrong because the two rocks have different masses, so it leaves us with B and C. The most logical answer to the question is
C <span>The one with greater mass takes more force to stop.
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Answer: No. Circuit should be closed.
Explanation:
A changing magnetic field induces emf in a circuit which is placed in it. This induced emf causes current to flow through it. This is given by Faraday's law which states that induced emf results due to rate of change of magnetic flux.

Current flows only through a closed circuit. Thus, when a wire is moved up and down in a magnetic field, it will not induce emf because the wire does not form a loop. It is an open circuit.
the answer should be b) molecules because molecules are what creates a amino acid
Answer:
The blender was running for 35 seconds.
Explanation:
Given:
Power of the blender is, 
Work done by the blender is, 
We know that, power is defined as the rate at which work is done by the body.
Here, we are given the power and work done and we are asked to find time taken.
Let the time of running of the blender be 't' seconds.
So, the power of the blender is given as:

Rewriting the above in terms of 't', we have

Plug in the given values and solve for 't'. This gives,

Therefore, the blender was running for 35 seconds.