A football player kicks a football from the ground level with an initial speed of 23.0 m/s the ball leaves the ground making an angle of 30.0 degree with the ground find the distance travelled by the ball before it hits the ground

The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.

What do you think car designers do if the damage caused by a crash test is too severe?

Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.