Assume that a 1.00-kg ball is thrown solely by the action of the forearm, which rotates about the elbow joint under the action of the triceps muscle, fig. 8-45. the ball is accelerated uniformly from rest to 10.0 m/s in 0.350 s, at which point it is released. calculate (a) the angular acceleration of the arm, and (b) the force required of the triceps muscle. assume that the forearm has a mass of 3.70 kg and rotates like a uniform rod about an axis at its end.

falling water hydro = water .. spectcular places these plants are

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.

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y