Two teams are playing tug-of-war. Team A, on the left, is pulling on the rope with an effort of 5000 N. If the rope is moving at a constant velocity, how hard and in which direction is team B pulling? A. 2500 N to the left
B. 5000 N to the right
C. 2500 N to the right
D. 5000 N to the left

What are chlorofluorocarbons and what impact do they have on the atmosphere?

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.

Who was the first scientist to measure speed as distance over time?