Momentum = (mass) x (velocity)
Since we have no information about the object's direction,
the best we can do is use the magnitude of its momentum
and find it's speed.
Magnitude of Momentum = (mass) x (speed)
For this object, (75 kg-m/s) = (3 kg) x (speed)
Divide each side by (3kg):
(75 kg-m/s) / (3 kg) = Speed
Speed = 25 m/s .
(about 56 mph)
I'm pretty sure that the only right answer is <span>B) a north-seeking pole of unit strength with a south-seeking pole of the same strength. Because there are no single magnetic poles.</span>
Explanation:
first, find the circumference of the wheel by using the formula 2(pi)(r):
2(pi)(19) = 119.380521
divide by 25 secs
119.380521/25 = 4.77522083
round to the nearest tenth is 4.8, so the speed is 4.8mm/sec
Answer:
Steps and solution in the attached pictureSteps and solution in the attached picture.
Explanation:
Steps and solution in the attached pictureSteps and solution in the attached picture.
