An airplane touches down at the extreme end of a 2000 m runway and decelerates uniformly at a rate of 2 m/s2. The plane stops at the other end of the runway. Determine... a. the plane’s velocity as it began to land
b. the amount of time the landing roll required.

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 the first law of thermodynamics, triangle e=q-w, what does q stand for

The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g