What is the sound level in a car when the intensity is 0.5 pw/m2? a 99db b 23 db c 57db d 5db

Level of sound is given by equation

here we know that

also the standard intensity of sound will be

now we will use above equation

So here it is no given option is correct as its level is coming - 3 dB

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

more than, less

less than, more