Answer:
14.79 kgm/s
Explanation:
Data provided in the question
Let us assume the mass of baseball = m = 0.145 kg
The Initial velocity of pitched ball = = 47 m/s
Final velocity of batted ball in the opposite direction = = -55m/s
Based on the above information, the change in momentum is
= 14.79 kgm/s
Hence, the magnitude of the change in momentum of the ball is 14.79 kg m/s
Answer:
d = 52.20 miles
Explanation:
Given that,
Devon drove 50 miles west and then drove 15 miles north.
We need to find Devon's displacement. Let it is d. It can be calculated as follows :
Hence, Devon's displacement is 52.20 miles.
Answer:
The percentage is
Explanation:
From the question we are told that
The axis is is at
Generally the of intensity light emerging from the first polarizer is mathematically represented as
Where is the intensity of unpolarized light
Now the light emerging from the second polarizer is mathematically represented as
Now the light emerging from the third polarizer is mathematically represented as
Now the percentage of the intensity of light that emerged with respect to the intensity of the unpolarized light is
Answer:
Explanation:
It is given that,
Wavelength in vacuum,
Wavelength in vacuum,
Refractive index for air,
First refractive index,
Second refractive index,
A ray is incident at an angle of incidence of 50 degrees. Let r is the angle of refraction. Firstly calculating the angle of refraction for two values of wavelength from Snell's law as :
For 450 nm,
r = 32.13 degrees
For 650 nm,
r' = 32.65 degrees
Let is the angle of dispersion between the two refracted rays in the oil such that,
So, the angle of dispersion between the two refracted rays in the oil is closest to 0.52 degrees.