Answer:
700 watts
Explanation:
From the question, it is given that;
Force = 700N
Distance = 6m
Time = 6s
<u>First step:</u> we derive the formula that relates Power, distance and time, from first principle
But Energy is Force X Distance
Power = 700 watts
The power you will lose after walking the stairs is 700 watts
Answer:
(a). The frequency of this standing wave is 0.782 kHz.
(b). The frequency of the fundamental standing wave in the air is 1.563 kHz.
Explanation:
Given that,
Length of tube = 11.0 cm
(a). We need to calculate the frequency of this standing wave
Using formula of fundamental frequency
Put the value into the formula
(b). If the test tube is half filled with water
When the tube is half filled the effective length of the tube is halved
We need to calculate the frequency
Using formula of fundamental frequency of the fundamental standing wave in the air
Put the value into the formula
Hence, (a). The frequency of this standing wave is 0.782 kHz.
(b). The frequency of the fundamental standing wave in the air is 1.563 kHz.