Answer: [D] (Clarification: The one with the steepest incline)
Answer:
The angle is 89°.
Explanation:
Given that,
Electric field = 10 N/C
Electric flux = 0.01 N-m²/C
Area
We need to calculate the angle
Using formula of electric flux


Where, E = electric field
= electric flux
A = area
Put the value into the formula



Hence, The angle is 89°.
Thermal energy comes from the ,movement of particles which produces heat, the faster the movement is the more heat
Answer:
F = 39.36 N
Explanation:
given,
initial speed, u = 38 m/s
final speed, v = 0 m/s
mass of ball = 0.145 Kg
time, t = 0.14 s
Force = ?
using impulse formula
J = change in momentum
J = F x t
m(v - u) = F x t
0.145 x (0 - (-38)) = F x 0.14
F x 0.14 = 5.51
F = 39.36 N
force exerted by the ball is equal to 39.36 N.