Answer:
386 m
Explanation:
Let's call the horizontal distance between the point of launch and the point of landing of the first package 
.
2 seconds after landing at 
, the plane has travelled a horizontal distance of 
.
At this new point, the second package is launched. Because it is launched under the same conditions as the first, its horizontal distance from its point of launch is also 
.
To determine , we determine the time of fall of the package. Being a vertical motion, the drop has an initial velocity, 
, of 0 m/s with acceleration, 
, and a distance, 
, of 160 m. We use the equation of motion:
In this time, the package, with a horizontal velocity of 50 m/s, travels the horizontal distance, , of
The distance apart between both packages is 
Answer:
Explanation:
We shall apply conservation of mechanical energy .
initial kinetic energy = 1/2 m v²
= .5 x m x 12 x 12
= 72 m
This energy will be spent to store potential energy . if h be the height attained
potential energy = mgh , h is vertical height attined by block
= mg l sin20 where l is length up the inclined plane
for conservation of mechanical energy
initial kinetic energy = potential energy
72 m = mg l sin20
l = 72 / g sin20
= 21.5 m
deceleration on inclined plane = g sin20
= 3.35 m /s²
v = u - at
t = v - u / a
= (12 - 0) / 3.35
= 3.58 s
it will take the same time to come back . total time taken to reach original point = 2 x 3.58
= 7.16 s
The answer is "Deflate because volume is directly proportional to temperature"
Answer:
Light
Explanation:
The way a concave mirror works is that since it's concave, the light bounces off of each other. a convex mirror, it curved the opposite, and the mirror has no way to bounce off of itself.
Because it’s cheaper and efficient
