Answer:
24.21 m/s
Explanation:
x = Displacement in x direction = 55 m
y = Displacement in x direction = 0
= Height of the ball when the ball is kicked = 1 m
t = Time taken = 4.2 s
= Acceleration due to gravity = 
u = Initial velocity of ball
Displacement in x direction is given by
Displacement in y direction is given by
The ball should be kicked at an angle of
The initial speed of the ball is 24.21 m/s.
Answer:
a).
b).
c).
Explanation:
The angular acceleration is constant so we can use the formulas of uniform motion with the model of angular acceleration
a).
so the total angle between t=0 and the time it stopped is
b).
=
c).
360 Newtons. Multiply 90 by 4
Radio waves are electromagnetic waves with wavelengths of 1 millimeter or more . . . frequencies of 300 GHz or less.
RNA carries amino acids to the ribosomes
