1) The upper end of a 3.40-m-long steel wire is fastened to the ceiling, and a 4
ID: 1730782 • Letter: 1
Question
1) The upper end of a 3.40-m-long steel wire is fastened to the ceiling, and a 41.0-kg object is suspended from the lower end of the wire. You observe that it takes a transverse pulse 0.0492 s to travel from the bottom to the top of the wire.
What is the mass of the wire?
Express your answer with the appropriate units.
m = _____
2) (15.6) A fisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. It takes 3.2 s for the boat to travel from its highest point to its lowest, a total distance of 0.58 m . The fisherman sees that the wave crests are spaced 5.4 m apart.
a.
How fast are the waves traveling?
Express your answer with the appropriate units.
v = ____
b.
What is the amplitude of each wave?
Express your answer with the appropriate units.
A = _____
c.
If the total vertical distance traveled by the boat were 0.40 m , but the other data remained the same, how fast are the waves traveling ?
Express your answer with the appropriate units.
v = ____
d. If the total vertical distance traveled by the boat were 0.40 m , but the other data remained the same, what is the amplitude of each wave?
Express your answer with the appropriate units.
A = ____
Explanation / Answer
Answer:
Wire Tension T =m* g = 41 * 9.8 = 401.8 N
Velocity v = l/t = 3.4/0.0492 = 69.105mt/ec
So Velocity v =sqrt(T * l/m)
=> 69.105 = sqrt(401.8 * 3.4/m)
=> m=0.286kg
As per Chegg Policy I had answered for the First question.
Please upload 2nd question separately
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.