How many seismograph stations are needed to locate the epicenter of an earthquake?
1 answer:
You might be interested in
Answer:
The wavelength is 754.2 nm.
Explanation:
Given that,
Diffraction pattern y= 1.35 mm
Width = 0.838 mm
Distance D= 75 cm
We need to calculate the wavelength
Using formula of diffraction pattern
Where, y = diffraction pattern
m = order
d = width
D = distance
Put the value into the formula
Hence, The wavelength is 754.2 nm.
The air drag is a force that depends on the speed of an object relative to the wind. Under certain conditions, it can be modeled as:
Where b is a constant.
As a falling object reaches a speed so that its weight is cancelled out by the air drag, the object will reach a maximum velocity.
In a speed vs time gaph, the speed would approach the maximum speed like an asymptote.
On the other hand, since the object falls from rest, the initial speed on the graph must be zero.
Taking these considerations into account, the correct graph for the movement of an object that falls from rest if air drag is not ignored, is option B.
Answer:
Explanation:
Initial angular speed of the player is given as
here we know that
now we know that
now its speed comes to zero in 0.2 s
so angular acceleration is given as