If you provided the aforementioned line 19, that would kinda be great.
Image<span> formed by a </span>plane mirror is<span> always </span>virtual<span> (meaning that the light rays </span>do<span> not actually come from the </span>image<span>), upright, and of the same shape and size as the object it </span>is<span> reflecting.
</span>
11.86 years, or around that time it would take about 12 years.
Answer:
Approximately 
.
Explanation:
The formula for the kinetic energy 
of an object is:
,
where
is the mass of that object, and
is the speed of that object.
Important: Joule (
) is the standard unit for energy. The formula for requires two inputs: mass and speed. The standard unit of mass is 
while the standard unit for speed is 
. If both inputs are in standard units, then the output (kinetic energy) will also be in the standard unit (that is: joules,
Convert the unit of the arrow's mass to standard unit:
.
Initial of this arrow:
.
That's the same as the energy output of this bow. Hence, the efficiency of energy transfer will be:
.
The mechanical energy is
E= mxgxH + (1/2) mV²= 360x9.8x 0.2 + 180*484=8782.5J
