Answer:
False
Explanation:
The object could be in a constant velocity and the sum of both the external torques and the external forces on an object is zero. Newton's first law states that when the total net force is 0 or there is zero force, the object could be at rest OR remain in constant velocity. It's not necessary at rest.
Answer:
225nm
Explanation:
The Maxima of diffraction girating
dsin( θ)= m(λ)
Where θ)= angle between central axis and corresponding point
The wavelength is to corresponding sin( θ)
Then the maximum number of (λ) can be seen by setting sin( θ)= 1 then
d= m(λ)
At fifth order maximum m=1 then
d= 5(λ)
Where d= distance between the slit and with girating of 1/890rullig/mm
d= 1/890rullig/mm= 8.90×10^-6m
At maximum wavelength
d= 5(λ)
(λ)=5/d
= 8.90×10^-6m/5
=2.75*10^-7
= 275nm
Therefore, longest wavelength that forms an intensity maximum in the fifth order is 275nm
Answer:
earth
because it effects climate change
Answer:
The combinations are
1. C ,
2. C ,
Explanation:
The force between two charges q and Q is given by Coulomb's law.
The coulomb force is given by
Where, r be the distance between two charges
According to the question,
r = 15 cm, Q = C, q = C , F = 12 N
Force remains same, distance remains same
so the product of Q and q be same
The product of Q and q is
So other combination of charges are
1. C ,
2. C ,