A standing wave on a string 1.5 m long with both ends fixed has three antinodes. If the frequency of the wave is 200 Hz, what is the speed of the wave on the string?

200 m/s

Explanation:

We are given that

Length of string=L=1.5 m

Number of antinodes=n=3

Frequency of the wave=f=200 Hz

The relation between the length and wavelength

Using the formula

The relation between the velocity,frequency and wavelength

Using the formula

Hence, the speed of the wave on the string=200 m/s

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

f is prop to m1xm2 double m1 double force