Answer:
5.843 m
Explanation:
suppose that the arrow leave the bow with a horizontal speed , towards he bull's eye.
lets consider that horizontal motion
distance = speed * time
time = 40/ 37 = 1.081 s
arrow doesnot have a initial vertical velocity component. but it has a vertical motion due to gravity , which may cause a miss of the target.
applying motion equation
(assume g = 10 m/s²)

Arrow misses the target by 5.843m ig the arrow us split horizontally
Answer:
The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.
Explanation:
Answer: It is smaller than the second star
Explanation: The brightness of a star depends on two factors: The distance from the Earth and size of the star. More the distance from the Earth, the star appears dimmer. And bigger the star, brighter it is.

Where L is the luminosity,d is the distance
Luminosity depends on the surface area of star 
Here, it is given that the two stars are at the same distance from the Earth. The first star is dimmer. We can conclude from this that first star star must be smaller than the second star.