Naw! Common sense should be common which is why it's called common sense...
Answer:
20654 N
Explanation:
Applying
F = kqq'/r²........... equation 1
Where F = Force between the charge, q = First charge, q' = second charge, r = distance betweeen the charge, k = coulomb's constant.
From the question,
Given: q = -0.0004 C, q' = 0.00092 C, r = 0.4 m
Constanr: k = 8.98×10⁹ Nm²/C²
Substitute these values into equation 1
F = ( -0.0004×0.00092×8.98×10⁹)/(0.4²)
F = (3.30464×10³)/0.16
F = (3304.64)/0.16
F = 20654 N
Hence the force between the charges is 20654 N
Answer:
There are 157 ft. above the bottom of the gorge
Explanation:
Cliff 1 (h) = 172ft.
Cliff 2(h) = 112 ft
Height difference between the cliffs: 172ft. -112 ft. = 60 ft
Width of the gorge = 80 ft
In this problem a right triangle is formed where the hypotenuse (T) is represented by the trestle's length, the width of the gorge is one of the legs and the leg opposite the angle (Ф) is represented by the difference in height between the cliffs.
T=
3/4 T = 3/4(100) = 75ft.
Calculating the height of the train from the lowest cliff, we will use the proportion of the sine of the angle that forms the trestle with the horizontal.
sin(Ф)=
x=
In order to know the height from the bottom of the cliff, we must add its height to this value.
h= 45ft. + 112ft. = 157 ft.
Solar wind is the radiation (Photons and other particles) which are ejected from the sun. When the particles interact with the magnetic field of Earth, or any other magnetic field, the particles begin to release photons in the highest regions of the atmosphere, which are the Auroras; however, without our magnetic field, the atmosphere would be blasted off of the surface, along with massive amounts of radiation, an example of this occurring is Mars.