In a certain UHF radio wave, the shortest distance between positions at which the electric and magnetic fields are zero is 0.247 m. Determine the frequency of this UHF radio wave.

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Aballet student who learns with the of his instructor is demonstrating learning.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force