To solve this problem we must use the trigonometric relations, in this case as we have the ramp and the height the concentric trigonometric property to the 
will allow us to find the angle.
The sine of angle A, is defined as
Therefore the angle of elevation is 8.9°
Answer:
Speed is the rate at which an object's position changes, measured in meters per second. The equation for speed is simple: distance divided by time
Explanation:
The cell would die if it stopped using energy
Answer:
s=1721.344m ,v=104.96m/s.
Explanation:
using thr equation of motion;
u=0, plane starts from rest,
s=1721.344m
v=u+at
v=0 +3.2*32.8
v=104.96m/s
Light travels at a speed of:
The distance between Mercury and Sun is
, so the time it takes is
if we want to convert this into minutes, keeping in mind that 1 min = 60 seconds, we should divide this value by 60:
