Answer:
there are 5
Explanation:
A:The coating absorbs light that shines on it and prevents the light from reflecting
B:The surface of the coating is rough, so light that shines on it gets scattered in many directions.
C:The coating bends light that passes through it and prevents the light from reaching the user’s eyes
D:The surface of the coating allows light from the room to pass through but blocks the light from the screen.
Answer:
The correct answer is D.
D:The surface of the coating allows light from the room to pass through but blocks the light from the screen.
Explanation:
Glare is produced on a computer screen when light from some external source reflects on the screen.
Anti-glare coating do not absorb light to reduce glare but they actually reduce glare by encouraging the light from the room to pass through the screen so that less light is reflected. Polarized lenses absorbs light to reduce glare, not anti-glare coating.
Answer: d
Explanation:
Answer : 5.25 Calories is equivalent to 21.966 Joules.
Explanation :
The capacity to do any work is called its energy. Its SI unit is joules. Another unit of energy is joules.
The relation between the calorie and the joule is :
To convert 5.25 calories to joules we have to use unitary method i.e.
So, 5.25 C = 21.966 Joules.
Hence, this is the required solution.
b. the type of wave
c. the original frequency of the source
d. the motion of the source or observer
I believe the answer is D, im not 100% sure though.
Answer:
Battery stores the electrical energy in the chemical form. When we connect it's positive and negative terminals and provide the path for the flow of electrons then it converts that chemical energy into the electrical energy and hence the direct current is created. So both of the technicians are right.
Explanation:
Answer:
When the masses drop, they move with the same angular velocity as you before hitting the ground. i.e., they leave your hand with their angular momentum. So, in one view, you can think the mass decreases, which means the moment of inertia also decreases. Therefore, the angular velocity should increase.