In general, what is true about the frequency at which an object vibrates?.
1 answer:
In general s the wavelength of the vibration decreases, the frequency of the object increases and vice versa.
<h3>What is frequency?</h3>This is the number of complete cycles per second made by a vibrating particle.
The frequency of a wave is calculated as follows;
where;
- f is the frequency of the wave
- v is the speed of the wave
- λ is the wave length
Generally, as the wavelength of the vibration decreases, the frequency of the object increases and vice versa.
Learn more about frequency here: brainly.com/question/25699025
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Answer:
(I). The time at highest point 4.0 sec.
(II). It returns to back to its original height in 8.1 sec
Explanation:
Given that,
Velocity
(I). We need to calculate the time at highest point
Using equation of motion
Where, v = final velocity
u = initial velocity
g = acceleration due to gravity
t = time
Put the value into the formula
(II). We know that, when the ball to travel from the initial point and reached at initial point then the displacement is zero.
We need to calculate the total time when it returns to back to its original height
Using equation of motion
Where, s = displacement
g = acceleration due to gravity
t = time
u = velocity
Put the value in the equation
Hence. (I). The time at highest point 4.0 sec.
(II). It returns to back to its original height in 8.1 sec
Answer:
15,569,653.3 Joules(J)
Explanation:
The equation used to find Kinetic Energy (KE) is
KE = m
You have been given
m = 450kg
v = 947km/h
KE = ???
Firstly, we need to convert the km/h into m/s as this is the unit used in the KE equation
This can be done by dividing by 3.6
947km/h = 263.056m/s
Substitute you values into the equation
KE = m
KE = * 450 *
KE = 15,569,653.3 Joules(J)
Round your answer as appropriate