They bounce off just like sun rays when they heat the atmosphere they bounce off reflection
Answer:
By exact formula
5076.59N/C
And by approximation formula
5218.93N/C
Explanation:
We are given that
Length of rod,L=2.6 m
Charge,q=98nC=
a=13 cm=0.13 m
1 m=100 cm
By exact formula
The magnitude of the electric field due to the rod at a location 13 cm from the midpoint of the rod=
Where k=
Using the formula
The magnitude of the electric field due to the rod at a location 13 cm from the midpoint of the rod=
In approximation formula
a<<L
Therefore,the magnitude of the electric field due to the rod at a location 13 cm from the midpoint of the rod=
The magnitude of the electric field due to the rod at a location 13 cm from the midpoint of the rod=
If we consider that the surface wherein this box is located is frictionless in such a way that the friction does not affect its motion, we can calculate for the horizontal force by multiplying the force with the sine of the angle.
x-component of force = (4 N) x (sin 62°)
= 3.53 N
Answer:
A. Kinetic energies are equal.
Explanation:
The kinetic energy of the bodies will be equal since the mass and speed are the same.
Kinetic energy is the energy due to the motion of a body.
Mathematically;
K.E = m v²
m is the mass
v is the speed
The kinetic energy is a scalar quantity with no regard for direction.
Wave speed = frequency (in Hz) x wavelength (in m) so wave speed = 11 x 0.011 = 0.121 m/s