We know average speed =total distance/time taken
So avg speed=(85+63)/(5+5)=14.8km/hr
Beat frequency is given by the difference of two frequencies played together
given that
Now
Rank of the radiation particles according to their ability to penetrate solid objects, from the best able to penetrate to the least able to penetrate:
C ) gamma particle, beta particle, alpha particle.
Answer:
c. from south to north
Explanation:
since we know that:
F = qv×B
where F is the force and in this case is pointed upward
where v is the velocity due east
the field must be due north by the right hand rule
Therefore, near the equator the magnetic field lines of the earth are directed north from south
Answer:
Explanation:
Where is the remaining part of the question? This is a very easy one
