The speed of light is 3 x 10^8 m/s. Find the wavelength for a typical AM radio wave with a frequency of 600 kHz. Answer in units of m.​

82

Explanation

the reason why its 82 is because i looked it up and cause i had this question

wavelength = (3×10^8 m/s)(6×10^5 Hz)

= 1.8×10^14 m

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards