Which doesn't belong to the same family?
A) infrasonic waves
B) ultrasonic waves
C) radio waves
D) shock waves
E) longitudinal waves
Answer: C
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Which fundamental fact about the electromagnetic force explains why electromagnetic waves exist, rather than simply electromagnetic force?
A) The electromagnetic force acts at a distance with a delay time, rather than instantaneously. B) The electromagnetic force decreases at points more distant from the source of that force. C) The electromagnetic force can be felt in all directions from the source of that force. D) The electromagnetic force cannot be felt across vacuum. E) The electromagnetic force acts instantaneously at a distance, with no delay time.
Which cloud types are associated with the following characteristics: thunder, halos, precipitation, hail, mackeral sky lighting, and mares' tails?
A 2.50-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to this stone from the instant it is dropped until it hits the ground, assuming negligible air resistance?
What will be an ideal response?
Instead of thymine, RNA uses the nucleotide base
A) guanine B) uracil C) adenine D) cytosine