A 0.15-m straight wire moves with a constant velocity of 7.0 m/s perpendicularly through a magnetic field. If the magnetic field has a strength of 0.40 T, what is the
electromotive force?

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%