I think the answer is D, but I’m not at all sure :l
Answer:
A
Explanation:
Because both the elements are non-metals
The runner runs 8 meters per second or 28.8 kilometers per hour
Answer:
15 m/s to the right
Explanation:
Let's say right is positive and left is negative.
Momentum is conserved:
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
(6.0 kg) (25.0 m/s) + (15 kg) (0 m/s) = (6.0 kg) (-12.5 m/s) + (15 kg) v₂
v₂ = 15 m/s
The bulbs connected in series will be dimmer.
<h3>What is a series connection?</h3>
When there is a connection in series, it implies that the connection is done in an end to end fashion. When the connection is in parallel the it is made in such a way that the bulbs are joined to a common junctions the same potential difference occurs across then all.
Now we know that in a series connection, the voltage across the different bulbs varies hence there is a potential drop which accounts for the decrease in the brightness of the bulb. On the other hand, the voltage across a parallel connection is the same thus the bulbs do not dim so much.
Hence, if 3 bulbs are in series and the same 3 bulbs are in parallel with the same battery, the bulbs connected in series will be dimmer.
Learn more about series connection:brainly.com/question/18713901
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