q=5tsin4pit calculate i at t=0.5seconds

A 12.0 kg flywheel with a diameter of 0.500 m initially rotating at4.00 revolutions/seconds increases its rate of rotation at aconstant rate and reaches an angular velocity of 56.5radians/seconds in 12.0 seconds.
a) Calculate the flywheel’s initial angular velocity inradians/seconds.
b) Calculate the flywheel’s angular acceleration.
c) Calculate the flywheel’s angular displacement.
d) Calculate the flywheel’s initial tangential velocity.

A 12.0 kg flywheel with a diameter of 0.500 m initially rotating at4.00 revolutions/seconds increases its rate of rotation at aconstant rate and reaches an angular velocity of 56.5radians/seconds in 12.0 seconds.
a)Calculate the flywheel’s initial angular velocity inradians/seconds.
b)Calculate the flywheel’s angular acceleration.
c)Calculate the flywheel’s angular displacement.
d)Calculate the flywheel’s initial tangential velocity.

Calculate the percent error made over one mile of distance by the"5second rule" for estimating the distance from a lightning strikeforeach of the following temperatures. The "5 second rule" saysthatfor every 5 seconds between seeing a lightning strike andhearingthe associated sound, the lightning is 1 mile distant.Assume 1 mileequals 1610 meters.

(a) 46°C
%
(b) 18°C
%