Arugby player passes the ball 7.75 m across the field, where it is caught at the same height as it left his hand. at what angle was the ball thrown if its initial speed was 12.0 m/s, assuming that the smaller of the two possible angles was used? number what other angle gives the same range? number for the pass using the smaller of the two angles, how long is the ball in the air?

15.93°

74.06°

0.67 seconds

Explanation:

Angle at which the projectile is shot at = θ

g = Acceleration due to gravity = 9.81 m/s²

Range of projectile

Hence, the angle at which the ball was thrown is 15.93° or 90-15.93 = 74.06°

Angle at which the projectile is shot at = θ = 15.93°

Time the ball was in the air is 0.67 seconds

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).