Answer:
No, it is not magnetized.
Explanation:
Bar B does not necessarily have to be magnetized before it can be attracted to a magnet. It just has to be a magnetic material such as Iron.
If bar B were magnetized, it could either be attracted or repelled by the magnet since this would depend on the side of the pole of bar B facing it.
Since we are not given any information about bar B other than it is attracted to the magnet, it is thus not magnetized.
The resistance of the laser whose voltage difference pushes the current through its laser diode is 2 ohms.
<h3>What is resistance?</h3>
The resistance is the opposition offered to the current flow.
According to the ohm's law, potential difference is directly proportional to the current flowing in the conductor.
V =I x R
Where R is the constant of proportionality called resistance.
Given is the potential difference V =10 Volts and the current flow of 5A, then the resistance will be
R = 10/5 = 2 ohms.
Thus, the resistance of the laser is 2 ohms.
Learn more about resistance.
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this question is centered around newtons second law f=ma
First you need to find the acceleration
that gives you 0.36 recurring(on both numbers) m/s²
mass= force ÷ acceleration
mass= 85.25 kg
if you want to check
f=ma
85.25 × 0.36 recurring (remember its on both numbers not just 6) = 31 N
Answer:
Velocity = 0.105m/s
Explanation:
Using conservation of momentum:
Momentum before impact= mass of ball × velocity of ball
= 0.400×10.8= 4.32
Momentum after impart= mass of ball × velocity of ball + mass of olaf × velocity of olaf
= 4.35 +3.56 + 74.9Vf
Vf=7.88_74.9 = o.0.105m/s
