Suppose that the wave depicted above were traveling to the right at a speed of 35 cm/sec, and that λ=2.5 cm. a) how long would it take for 1 wavelength (or 1 cycle of the wave) to travel past the point x/?

0.0714 second

Explanation:

Speed of wave, v = 35 cm/s = 0.35 m/s

wavelength, λ = 2.5 cm = 0.025 m

The time taken by the wave to complete one wavelength is called time period of the wave. It is denoted by T. Its SI unit is second.

The number of vibrations completed in one second is called frequency of the wave. it is denoted by f. Its SI unit is Hertz (Hz).

The relation between the wave velocity, wavelength and frequency is

v = f λ

0.35 = f x 0.025

f = 14 Hz

The relation between frequency and the time period is given by

T = 0.0714 second

Thus, the time taken by a wave to complete one wave is  0.0714 second.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

the right answer is 0.3 meters per second