5. (a) A conducting loop in the shape of a square of M edge length { = 0.400 m carries a current-I = 10.0 A
as shown in Figure P30.5.- Calculate the magnitude
and direction of the magnetic field at-the-center of
the square. (b) What If?. If this conductor is reshaped
to form a circular loop and carries the same current,
what is the value of the magnetic field at the center?​

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?