Wendy rode her bicycle 87 meters in 12 seconds what is her speed? a- 0.14m/s
b-0.8m/s
c-7.3m/s
d-9.5m/s

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.

How can you increase the strength of an electromagnet?

Which bonds are found inside a water molecule