Answer:
A student is conducting a pendulum experiment. Which of the following pieces of safety equipment would be the most vital to conduct this test?
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Answer:
f = 409 Hz
Explanation:
We have,
Length of the open organ pipe, l = 0.29 m
Frequency of vibration of second overtone,
It is required to find the fundamental frequency of the pipe. For the open organ pipe, the frequency of second overtone is given by :
v is speed of sound
Let f is the fundamental frequency. It is given by :
The relation between f and f₂ can be written as :
So, the fundamental frequency of the pipe is 409 Hz.
Answer:
The 7.0-kg bowling ball with a speed of 6.0 meters per second
Explanation:
Momentum is p=mv
m = mass, v = velocity. (velocity is speed with direction)
1. 0.046-kg golf ball with a speed of 60.0 meters per second.
The mass is 0.046kg , velocty is 60.0
p= mv = 0.046 x 60 = 2.76kg
2. 7.0-kg bowling ball with a speed of 6.0 meters per second
Mass is 7kg, velocity = 6
p=mv = 7 x 6 = 42kg
The 7.0kg bowling ball has more momentum because 42 is greater than 2.76.