Answer:
The range of angles is from 17.50° to 31.76°
Explanation:
The diffraction grid equation is as follows:
Clearing for 
where is the angle, 
is the order, in this case 
, 
is the wavelength, and 
is defined as follows:
and since the resolution is 750 lines/mm wich is the same as 
will be:
wich is the distance between each line of the diffraction grating.
substituting the values for and :
And we need to find two angle values: one for when the wavelength is 400nm and one for when it is 700 nm. So we will get the angle range
and
The range of angles is from 17.50° to 31.76°
Answer: The force was 13.92 Newtons.
Explanation:
First, let's recall the second Newton's law:
The net force is equal to the mass times the acceleration, or:
F = m*a
where:
F = force
m = mass
a = acceleration.
When the player hits the ball with the bat, he applies a force that accelerates the ball for a small period of time, that increases greatly the speed of the ball.
In this case, we know that:
the mass of the ball is 0.145 kg
The acceleration of the ball is 96m/s^2
Then we can input those values in the above equation to find the force.
F = 0.145kg*96m/s^2 = 13.92 N
The force was 13.92 Newtons.
Answer:
The focal length of the given spherical mirror is 20cm.
Explanation:
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