If the side opposite angle a of a right triangle is 30 meters and the hypotenuse is 90 meters, what is the value of the sin of angle a? (round the answer to the nearest hundredth.)

Aball is fired with an initial velocity of 500 m/s at an angle of 30 degrees above the horizontal across a level field. a. what are the horizontal and vertical components of the initial velocity. b. calculate the maximum height, the time of flight, and the range of the ball.