B.
We know that the definition of acceleration is the rate of change of velocity. Moreover, velocity is a vector quantity, so it has both magnitude and direction. While moving in a circle, the direction of the car's velocity is constantly changing. This change means that the velocity of the car is changing. Because the velocity is changing, the car is accelerating, despite the magnitude of the velocity remaining the same.
Answer:
Constructive Interference
Explanation:
The dimension of frequency is reciprocal time.
The unit is the Hertz.
1 Hertz = 1 per second.
Thank you for posting your question here at brainly. Below is the answer:
sum of Mc = 0 = -Ay(4.2 + 3cos(59)) + (275)(2.1 + 3cos(59)) + M
<span>- Ay = (M + (275*(2.1 + 3cos(59)))/(4.2 + 3cos(59)) </span>
<span>sum of Ma = 0 = (-275)(2.1) - Cy(4.2 + 3cos(59)) + M </span>
<span>- Cy = (M - (275*2.1))/(4.2 + 3cos(59)) </span>
<span>Ay + Cy = 275 = ((M+1002.41)+(M-577.5))/(5.745) </span>
<span>= (2M + 424.91)/(5.745) </span>
<span>M = ((275*5.745) - 424.91)/2 </span>
<span>= 577.483 which rounds off to 577 </span>
<span>Is it maybe supposed to be Ay - Cy = 275</span>