The more sound waves a sound produces, the higher the pitch. Meaning if a sound has a high frequency, it will produce a high-pitched, shrill sound, while sounds with a lower frequency produce lower, deeper sounds, like bass sounds. ( i hope this helps)
Answer:
0.196*c
Explanation:
A good thing to remember is that once you have the position and the time in one frame we can figure out corresponding position and time in another frame in other frames given their relative velocities.
Anna moves in (S') frame and we are given two events synchronized in her frame with the distance between them, Hence using Lorentz transformation to show which event Bob frame (S) will see first:
Hence,
we are assuming that dx' > 0 , hence we are saying that light emitted from front end of the plane is event number two and that coming from the back end is event number one. As the time in Bob's frame turns out to be positive, this means that event number two happened after event number one in his frame, in other words, the light emitted from the back end of Anna's plane arrives first to Bob's eyes.
Given:
dt' = 40ns
dt = 0
dx' = 60
Solution:
Answer:
Explanation:
Given that,
Mass of the astronaut, m = 70 kg
Mass of the spacecraft,
Acceleration of the astronaut,
To find,
The magnitude of the acceleration of the spacecraft.
Solution,
The force acting on the astronaut is given by :
During the push, the astronaut accelerates as a result a reaction force will also act on the spacecraft. Let is the acceleration of the spacecraft. It can be calculated as :
(reaction force)
Therefore, the magnitude of the acceleration of the spacecraft is . Hence, this is the required solution.
Answer what is going on
Explanation