Answer: 14 m/s
Explanation:
The speed
of a sound wave is given by the following equation:
Where:
is the wavelength of the sound wave
Hence:
Answer:
25.4 centimeters?
Explanation:
I’m guessing you needed the conversion? Let me know.
Length of the pendulum (l) = 2 m
Acceleration due to gravity = g = 9.8 m/s^2
For small amplitude, the pendulum will undergo simple harmonic motion.
Hence, the time period of the pendulum for small amplitude = 
Now, plug the values of l and g
T = 
T = 2 × 3.14 × 0.451
T = 2.83 seconds
Hence, the time period of the pendulum for small amplitude = 2.83 s
Lead shielding refers to the use of lead as a form of radiation protection to shield people or objects from radiation so as to reduce the effective dose. Lead can effectively attenuate certain kinds of radiation because of its high density and high atomic number; principally, it is effective at stopping gamma rays and x-rays.
Since Efficiency = 92% = 0.92
Efficiency = (Work Output) / (Work Input)
0.92 = Wo / 100
Wo = 0.92 * 100
Wo = 92 J.
Therefore 92J is used to move the bicycle.