Answer: The sum of protons and neutrons in the nucleus
Explanation: The Formula For Atomic Mass or Mass Number is
Atomic mass= Protons + Neutrons
Answer:
142 weeks/52 weeks per year = 2.7 years
so the answer is 2.7 years
Explanation:
Answer:
b) a horse pulls a wagon at a constant velocity
Explanation:
As we know that ,work done is the dot product of force vector and displacement vector.
W= F.d
W=work
F=Force
d=Displacement
We also know that
F = m a
m= mass ,a = acceleration
When velocity is constant then rate of change in the velocity will be zero,then we can say that acceleration will be zero.
When a= 0 Then F= 0
W= F.d ( F=0)
W = 0
Therefore option b i correct because horse is going with constant velocity.
Nitrogen is essential to life. It is a component of all proteins and can be found in all living organisms. Nitrogen in the atmosphere. <span>The molecules of nitrogen in the atmosphere can become usable for living things when they are broken apart during lightning strikes or fires, by certain types of bacteria, or by bacteria associated with bean plants.</span>
Explanation:
It is given that,
Diameter of loops, d = 48 cm = 0.48 m
Radius of the loop, r = 0.24 m
Current carried in the loop, I = 4.5 A
Distance between loops, x = 30 cm = 0.3 m
Speed of the proton, v = 2600 m/s
We know that the magnetic field at the midway of the coils is given by :
Let F is the magnetic force these loops exert on the proton just after it is fired. It is given by :
So, the magnetic force these loops exert on the proton is . Hence, this is the required solution.