The london eye, which is a giant ferris wheel, has a diameter of 135 m. it revolves at a constant rate and takes 30 minutes to complete one revolution. what is the linear velocity of a rider in a capsule that is located at the perimeter of the wheel?

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

Explanation:

Diameter = 135 m

Radius, r = 0.5 x 135 = 67.5 m

It revolves at a constant rate and takes 30 minutes

Period, T = 30 minutes= 1800 s

Linear velocity, v = radius x angular velocity

                      v = 67.5 x 3.98 x 10⁻³ = 0.2355 m/s

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

not too sure thinking all accelerations are pointed down