Answer:
Explanation:
The "traditional" form of Coulomb's law, explicitly the force between two point charges. To establish a similar relationship, you can use the integral form for a continuous charge distribution and calculate the field strength at a given point.
In the case of moving charges, we are in presence of a current, which generates magnetic effects that in turn exert force on moving charges, therefore, no longer can consider only the electrostatic force.
Answer:
665 ft
Explanation:
Let d be the distance from the person to the monument. Note that d is perpendicular to the monument and would make 2 triangles with the monuments, 1 up and 1 down.
The side length of the up right-triangle knowing the other side is d and the angle of elevation is 13 degrees is

Similarly, the side length of the down right-triangle knowing the other side is d and the angle of depression is 4 degrees

Since the 2 sides length above make up the 200 foot monument, their total length is
0.231d + 0.07d = 200
0.301 d = 200
d = 200 / 0.301 = 665 ft
Explanation:
Taking west to be positive, given:
v = 17.9 m/s
a = 63.7 m/s²
t = 0.21 s
Find: v₀
v = at + v₀
17.9 m/s = (63.7 m/s²) (0.21 s) + v₀
v₀ = 4.52 m/s
The initial velocity is 4.52 m/s west.
Atsmopheric pressure is the pressure that is on something inside and atmosphere. measured in either mmhg or milimeters of Mercury, or atmospheres abreviated atm.
Answer:
The final kinetic energy is four times of initial kinetic energy when speed of the car doubles.
= 4 
Explanation:
Mass of the car = 770 kg
initial speed
= 23.1 
Final speed
= 46.2 
Initial kinetic energy
= 
⇒
= 0.5 × 770 × 
⇒
= 205440 J
Final kinetic energy
= 
⇒
= 0.5× 770 × 
⇒
= 821760 J
Thus
= 4 
Therefore the final kinetic energy is four times of initial kinetic energy when speed of the car doubles.