A. Physics
The study of how objects interact with each other
Answer:
The first diffraction maximum fringe will be at approximately 2.7 meters from the central maximum.
Explanation:
We can describe single slit diffraction phenomenon with the equation:
(1)
with θ the angular position of the minimum of order m respect the central maximum, a the slit width and λ the wavelength of the incident light. Because the distances between the first minima and the central maximum (
) are small compared to the distance between the screen and the slit (x), we can approximate 
, using this on (1):
solving for y
Note that 
is the distance between a minimum and the central maximum but we need the position of a maximum not a minimum, here we can use the fact that a maximum is approximately between two minima, so the first diffraction maximum fringe is between the minima of order 1 and 2, so we should find 
, 
add them and divide by two:
Yes a small child can play with fat child in the seesaw because if the the load distance is decreased the effort will increase. That's means if the distance between the fat boy and the fulcrum is decreased the small child needs less effort.so,he can play
Answer:
Substance A will release more heat.
Explanation:
Let suppose that both substances experiment an entirely sensible heat process and are incompressible and begin at the same temperature. Physically speaking, specific heat (
), measured in kilojoules per kilogram-degree Celsius, can be described by following expression:
(1)
Where:
- Released heat, measured in kilojoules.
- Sample mass, measured in kilograms.
, 
- Initial and final temperatures of the sample, measured in degrees Celsius.
If we know that 
, 
, 
and 
, then we have the following inequation:
Substance A will release more heat.
