Answer:
1782.7 N/C, downward
Explanation:
Since the charged sphere is in static equilibrium, it means that the electric force acting is balanced with the weight of the sphere, so we can write:
where
m = 3.62 g = 0.00362 kg is the mass of the sphere
g = 9.8 m/s^2 is the acceleration of gravity
is the magnitude of the charge
E is the magnitude of the electric field
Solving for E,
In order for the sphere to be in equilibrium, the electric force must be in opposite direction to the weight, so the electric force must point upward. Since the sphere has a negative charge, the electric field has opposite direction to the electric force: so, the electric field direction is downward.
Answer:
2.25 kg
Explanation:
Length, L = 6 m
tension, T = 600 N
velocity, v = 40 m/s
The formula for the velocity is given by
where, μ is mass per unit length
μ = 0.375
m / L = 0.375
m = 0.375 x 6 = 2.25 kg
Thus, the mass of rope is 2.25 Kg.
Answer:
-2.25
Real and inverted image
Explanation:
u = Object distance = 16 cm
v = Image distance = 36 cm
f = Focal length
Lens Equation
Focal length of the lens is 11.07 cm. Positive value indicates the lens is a convex lens
Magnification
Since magnification is negative the image inverted
Gravity. All objects have a force that attracts them towards each other. This is called gravity