It attracts two charged particles which are separated by a definitive distance.......
Answer:
65 m/s
Explanation:
v=v0+at <=> v = 11 + 12 t ∧ t = 4.5 s <=> v = 11 + 12×4.5 <=> v = 65 m/s
Answer:
The induced emf in the coil at the t = 5s is 6.363 mV
Explanation:
Given;
number of turns = 75
diameter of the coil = 6 cm
magnetic field strength = 1 T
new magnetic field strength = 1.30 T at t = 10.0 s


Between 0 to 5 s, Induced emf is given as;

Between 5 to 10 s, Induced emf is given as;

Since the field increased at a uniform rate until it reaches 1.30 T at t = 10.0 s, the induced emf will also increase in uniform rate. And equal time interval will generate same increase in field strength.
B₅ -1 = 1.3 - B₅
2B₅ = 2.3
B₅ = 1.15 T
Thus, magnetic field at t = 5 is 1.15 T

Therefore, the induced emf in the coil at the t = 5s is 6.363 mV
Answer:
C) 8.0 N
Explanation:
F=m*a
Number of atoms equal the number of molecular orbitals as each atom has 1 atomic orbital and 1 electron.
Therefore,
Number of atoms = (mass/molar mass)*Avogadro's number = (7.90/22.99)*1.36*10^23 = 4.67*10^22 atoms.
Then,
Number of molecular orbitals = 4.67*10^22