Answer:
The second one is the answer
My teacher said 36m when I asked her
Answer:
Explanation:
The current through the resistor is 0.83 A
.
Part b
The current through resistor is 0.53 A
.
Part c
The current through resistor is 0.30 A
<u>Answer:</u>
2.39 kg
<u>Explanation:</u>
There is conservation of momentum here in this problem so we will use the following problem:
where the mass of the student is 48.5 kg,
the mass of the skateboard is kg,
the initial speed of the student is 4.25 m/s; and
the speed of the student and skateboard is 4.05 m/s.
So substituting the given values in the above formula to get:
Therefore, the mass of the skateboard is 2.39 kg.