Answer:
Increase the work being done or decrease the time in which the work is completed
Explanation:
I got it right on the quiz i just took :)
Answer:
1.33
Explanation:
Using the formula for destructive interference since the two reflected ray light waves from eyeglass should be made to cancel each other ( destructive interference) and also refractive index of air less than the refractive index of the film and both are less than the refractive index of the glass meaning the both reflected rays from the air and film will experience a phase change
n film = ( m + 0.5) ( λ / 2t)
since 2 t = ( m + 0.5) ( λ / n film)
where m is an integer, λ is wavelength, and t is thickness and n film is the refractive index of film
for effectiveness m = 0
n film = ( 0.5) ( 480 ÷ (2 × 90 ) ) = 1.33
I think so it's a beta particles which is a high speed electrons
Answer:
12.6 (3 sig. fig.)
Explanation:
(12^2 + 4^2)^1/2 = 12.6 (3 sig. fig.)
Answer:
C. magnetic force
Explanation:
A magnetic field is responsible for the magnetic forces acting on a moving charge, so we can say that the direction of the magnetic field is determined by the magnetic forces. In the case of a conductor traversed by electric current and subjected to the presence of a magnetic field, we will also have the action of a magnetic force, since the current represents an orderly movement of electric charges.
An example of the application of magnetic force occurs in the TV tube, where a set of coils (artificial magnets), with their magnetic fields, enables the action of magnetic forces that deflect electron beams, causing them to traverse the entire screen. These electron beams sweep the phosphor-coated screen, line by line, from left to right and top to bottom, allowing the image to emerge.