D. They all four have valence electrons
Answer:
The magnitude of the force is 64.634 newtons.
Explanation:
According to the statement, the crate is a constant mass system, whose upward force is described by the following expression:
(1)
Where:
- Force, in newtons.
- Mass, in kilograms.
- Acceleration, in meters per square second.
The function acceleration is obtained by deriving the function position twice in time:
(2)
(3)
And we expand (1) by applying (3):
Where
is the time, in seconds.
If we know that
and
, then the magnitude of the force is:


The magnitude of the force is 64.634 newtons.
Answer:
Amplitude, A = 5 m
Explanation:
Let a progressive wave is given by equation :
.....(1)
The general equation of a progressive wave is given by :
....(2)
Here,
A is the amplitude of the wave
is the angular frequency
k is propagation constant
We need to find the amplitude of the wave.
If we compare equations (1) and (2), we find that the amplitude of the given plane progressive wave is 5 m.
Answer:
The Tenth Amendment
Explanation:
It supports states rights. it is apart of the "bill of rights". it expresses the federalism and state rights. It explains the the United states of Government is made this amendments to protect do the state rights. What people want.
I believe it is the first one.
This is because of the Doppler Effect.
The Doppler Effect is when the frequency of the wave changes for an observer moving relative to the wave source.
Basically, as the police car moves away from you, the distance between you and the car increases, which makes the sound waves spread out.