how many minutes would it take for a radiowave to travel from the planut venus to earth?

Question

the average distance from venus to earth is 28 million miles and 1 mile equals 1.6 km.

Answer 1

28 million miles = 2.8x10^7 mi | 1.6x10^3 m/mi | = 4.48^10^10 m

v = d / t ──► t = d / v = d / c (c = speed of light = 3x10^8 m/s)
t = (4.48^10^10) / (3x10^8 m/s) = 149.3 s ≈ 2 min 30 sec

Answer 2

Can't happen. Not since those darn Saturnians put up that firewall.