First connects the coil to a 9.3 V battery and measures a current of 0.516 A. The student then connects the coil to a 28.3 V(rms), 60 Hz generator and measures an rms current of 0.487 A. Find the inductance. Answer in units of mH.

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?