We have to make a few assumptions first. We assume the angle provided (12.9 degrees) is the plane's attitude, that is, the angle with respect to the horizontal. We also assume the plane's nose is angled toward the ground because you asked for rate of descent (not dissent). We also assume that all of the plane's airspeed is in the same direction as its attitude (which is often not the case in actual flight, where an aircraft's velocity vector may have a different angle than the angle the plane makes with the ground). So, we have an airplane that's traveling at 278 km per hour at an angle that is -12.9 degrees to the horizontal. (The minus sign indicates a downward direction.) That describes a vector having vertical and horizontal components. We are interested in the vertical component, which is given by the formula Vy = Vsin(theta) = 278sin(-12.9) = -62.1. The rate of descent, therefore, is 62.1 km/hr. It is not necessary to use the minus sign if you say "rate of descent," because the minus sign is implied. If you are asked what the vertical velocity is, then you must use the minus sign to indicate whether it's positive (ascending) or negative (descending).
Yes.
An airplane over the Pacific sights an atoll at a 23 degree angle of depression. If the plane is 445m above water, how many kilometers is it from 445m above the atoll?
This is essentially correct. A beam of light, when striking the plane of a mirror, will be reflected from that surface at the same angle as the incident beam.
It is false that a plane flying against a jet stream will travel faster than a plane traveling with a jet stream.
No, the Earth's axis of rotation is at a twenty three and a half degree angle to the plane of its orbit, which is closer to being perpendicular than it is to being parallel. This 23.5 degree "axial tilt" are responsible for, among other things, our seasons.
1.249 radians from the horizontal.
The answer depends on knowing what the plane mirror hhas a 20-degree angle relative to!
A line which rotates through an angle of 10 degree with the positive side of the x-axis of the Cartesian plane is called a 10 degree angle.
A polygon with any number of sides can have a 156 degree angle, as can most non-polygonal plane shapes.
The light ray arrives perpendicular to the plane of the mirror.
Yes.
When two plane mirrors are tilted at an angle of 60 degrees, there are 5 images will be formed.
2 is answer
5 images will be formed and how when two plane mirror are tilted at an angle of 60 degree
This is not a trapezoid. For all trapezoids (in plane Geometry), the two sets of side angles must be supplementary, or add to 180. No two angles given are supplementary.
five
Bottom of the oil pan on the bottom of the motor. Its on about a 30 degree angle that's the plane degree that it is threaded into