Here As we can see the figure that the end of the rope is pulled by some force F
Now as we can see that Piano is connected by a pulley which is passing over the pulley so effectively net force on the piano upwards will be 2F as it is connected by 2 ropes by the pulley
Now for constant velocity of the piano we will say
since velocity is constant so acceleration must be ZERO
so here we have
as we know here that
mg = 1000 N
so we will have
so here force must be 500 N
What effect man there are a million effects the only one that arent true are fusion or fission and magnetism unless that bowling ball is iron
I believe it would be 4.4
Answer:
Current in the wire is given as
Explanation:
magnetic field due to long current carrying wire is given as
so we have magnetic force on moving charge is given as
so we have
so we have
Answer:
hope this helps
Explanation:
one in which a positively charged nucleus is surrounded by one or more negatively charged electrons.
