What is one way to increase the amplitude of a wave in a medium?
A. by applying a vibration at the natural frequency of the medium
B. by increasing the velocity of the wave source
C. by moving the source of the wave away from the receptor, or observer
D. by decreasing the frequency of the wave source

half of a circle

explanation:

the arrow and the top of the circle is matching together. it is not a polygon because a polygon would always be the same shape. therefore, an half of a circle is called semicircle so you would find the radius of it.

the answer is a)

mark brainliest

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

the rearrangement of particles in a physical change. hope this