“What is the tissue that researchers believe is the easiest to grow and why?” The easiest tissue to engineer is cartilage because
cartilage cells do not need a great deal of oxygen
cartilage cells receive nutrients by diffusion
therefore cartilage cells do not require extensive networks of blood vessels to survive

Centrapedial force is the answer

Lexy is correct because angle r is between the incident wave,  n  = 0, and a diffracted wave.

Since you have not included the experiment situation and the data, of course, i can not give you specific details about it. but i can you with this question.1) i will assume that the motion is projectile (parabolic) motion.2) yes, the horizontal distance depends on the horizontal velocity as, naming vx the horizontal velocity and t the time, it is: x = vx × t3) now, observe that the flight time depends on the vertical velocity as, naming voy the initial vertical velocity, t the time and y the vertical distance before reaching the ground: y = yo + voy×t - gt² / 2.the higher the initial vertical velocity (voy) the longer the object will be flying and so t will be higher in the equation for the horizontal distance.that explains the relationship between the horizontal distance and the horizontal velocity.