Answer:
magnitude of the magnetic field must be 1.56 T
Explanation:
As we know that the magnetic force on moving charge is given as
now when charge is moving along z direction then magnetic force is ZERO
so here we can say that magnetic field must be parallel to velocity of the charge i.e. along z direction
now when charge is moving along x direction then we have
so we have
magnitude of the magnetic field must be 1.56 T
<h2>
Concept :- </h2>
The plane mirror has flat reflecting surface and the angle of reflection is always equal to the angle of incidence. The image formed by a plane mirror is located in front of the mirror but appears to be formed behind the plane in which the mirror lies. To find the nature of the image formed by a plane mirror. We need to study the reflection through a plane mirror.plane mirror has flat reflecting surface and the angle of reflection is always equal to the angle of incidence. The image formed by a plane mirror is located in front of the mirror but appears to be formed behind the plane in which the mirror lies. To find the nature of the image formed by a plane mirror. We need to study the reflection through a plane mirror.
<h2>
Required Answer :- </h2>
→ image formed by a plane mirror is : <u>virtual, behind the mirror and of the same size as the object</u>
<h2>Additional information :-</h2>
- Plane mirrors are the only type of optical mirror for which a real object produces an image that is virtual, erect, and of the same size of the object. The virtual objects produce a real image. The focal length of a plane mirror is defined as infinity, and its optical power is zero.
- The image formed by a plane mirror is erect, laterally inverted, and of the same size as that of the object. The left side of the object appears on the right side of the image. Also, the distance of the image from the plane mirror is same as the distance between the plane mirror and the object.
- Plane mirrors are used as looking glass.
- Plane mirrors also have many scientific uses. In most of the measuring instruments, a plane mirror is placed under the scale and pointer. When the pointer moves, the image in the plane mirror also moves.
- Now the eye is so placed that the pointer covers its own image, and thus the pointer and its image coincides. Thus the eye, the pointer and its image in the mirror are in the same line perpendicular to the scale. This helps in getting the correct reading.
- Plane mirrors are also used in constructing periscope which is used in submarines.
- Plane mirrors are used in solar cookers.
- Plane mirrors are used to make kaleidoscope, a toy which produces beautiful patterns from colored paper, pieces of glass or small colored beads.
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<h3>
<em>Hope it's helps !! cheers :))</em></h3>
Answer:
Velocity = 3.622 m/s
Explanation:
Given:
Starting height = 1.32 m
Distance = 1.88 m
Find:
Velocity
Computation:
Using 2nd equation of motion.
s = ut + [1/2]gt² , where g = 9.8 m/s² and u = 0
1.32 = [1/2][9.8]t²
Time (t) = 0.519 sec
We know that
Velocity = Distance / Time
Velocity = 1.88 / 0.519
Velocity = 3.622 m/s
The slowest line is the solid line and the fastest is the dotted line that crosses the solid line
for future reference you just need to find the slope or the line which is traveling most vertical
Answer:
17.46° W of N
Explanation:
His prow must point westward so that the westward component of his total velocity is equal to the eastward river speed.
3 = 10sinθ
sinθ = 3/10
θ = 17.4576... or about 17.46° W of N
it will take him 5 / 10cos17.46 = 0.52414... hrs. or about 31 min 27 s to cross.
