Answer:
Explanation:
We are given that
Length of wire,L=20 mm=
Current,I=4 A
Number of turns per unit length,n=800
Current,i=2 A
Magnetic field of solenoid,B=
Where
Magnetic force,F=
Using the formula
Explanation:
Half-life is the time taken for a radioactive material to decay to half its original composition:
Original mass = 48g
Half- life = 2hr
After four half lives;
Initially: 48g
First halving 24
Second halving 12
Third halving 6
Fourth halving 3
After second half life, we would have 12g
At fourth halving, we would have 3g
His research that is what made him an influential and controversial psychologist<span />
my answer is 1276.7 because I subtracted 88.3 miles and seconds from 1365 MI