Answer:
Scalar product is between ║A║ ║ B║ and -║A║ ║ B║
Explanation:
Dot product between vec A and vec B is
A.B = ║A║ ║ B║ cos θ
Here, both ║A║ and ║B║ are positive and value of cos θ depends upon θ and lies between 1 and -1
So, Scalar product is between ║A║ ║ B║ and -║A║ ║ B║
Answer:
so m = 3 ,4 wavelength between 410 to 660 nm so 484.25 nm and 645.6 nm light produce principal maximum
Explanation:
given data
grating =2605 lines per centimeter
angle = 30.3°
wavelengths between 410 and 660 nm
to find out
two wavelengths of the incident light that could have produced this maximum
solution
we know diffraction grating has 2605 lines / cm
so d = ( 1/ 2605 cm )
and we know equation
d sinθ = m× λ
so λ = d sinθ / m
θ = 30.3 so sin30.3 =
λ = (1/2605) sin30.3 / m
λ = (1937 nm ) / m
here put m = 1 , 2 , 3 , 4
if m = 1
λ = (1937 nm ) / 1 = 1937 nm
if m = 2
λ = (1937 nm ) / 2 = 968.5 nm
if m = 3
λ = (1937 nm ) / 3 = 645.6 nm
if m = 4
λ = (1937 nm ) / 4 = 484.25 nm
so that m = 3 ,4 wavelength between 410 to 660 nm so 484.25 nm and 645.6 nm light produce principal maximum
and longest wavelength is between 410 to 660 nm is 645.6 nm
Explanation:
Given that,
Distance covered, d = 32 m
Time, t = 8.7 m
Final speed of the truck, v = 2.1 m/s
(a) Let a is the acceleration and u is the original speed of the truck.
Using first equation of kinematics as :
..............(1)
Using second equation of kinematics as :
...........(2)
On solving equation (1) and (2) we get :
Original speed, 
(b) Acceleration, 
Hence, this is the required solution.
Louder than a sound with less energy
A solution, an example is salt and water. brainliest?
