A driver traveling at 40 m/s slams on his brakes the vehicle completely stops in five seconds how far to the vehicle go while stopping

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.

For which pair of objects would adding the same a

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.