Answer:
The velocity of charge is 1.1×10⁴
Option(D)
Explanation:
F = q(v×B)
3.5×10-²= (8.4×10-⁴)*(v)*(6.7×10-³)*sin35
v = (3.5)/(8.4×6.7×0.57) × 10⁵
v = 3.5/32.08 × 10⁵
v = 0.109 × 10⁵
v ≈ 1.1 × 10⁴ m/s
C) The weight of the object on planet A will be less than the weight of the object on planet B.
This happened because: when gravitational pull of a planet is weak, an object will weigh less as a result of less gravity forcing it down to the ground.
Answer:
The box 1 moves faster.
Explanation:
lets
Mass =m kg
Initial velocity = u m/s
Initial velocity of box = 0 m/s
Let stake mass of block = m
When ball bounces back:
The final speed of the box = v
Final speed of ball = - u
Pi = Pf ( From linear momentum conservation)
m x u + m x 0 = m ( - u) + m v
mu + mu = m v
v= 2 u
When ball get stuck :
The final speed of ball and box = v
Pi = Pf ( From linear momentum conservation)
m x u + m x 0 = (m+m) v
v= u /2
So the box 1 moves faster.
Answer:
(a) Both the charges are positive or negative.
(b) Teh value of each charge is 1.53 x 10^-5 C.
Explanation:
Spring constant, K = 340 N/m
Natural length, L = 0.4 m
stretch, y = 0.033 m
(a) Let the charge on each sphere is q and they repel each other so the nature of charge of either sphere may be both positive or both negative.
(b) The electrostatic force is balanced by the spring force.
