Author Question: If an object's velocity is constant, its speed must also be constant. Indicate whether the ... (Read 262 times)

erika · **on:** Jul 28, 2018

If an object's velocity is constant, its speed must also be constant.
Indicate whether the statement is true or false

Question 2

Which is a practical use of the Doppler effect?
a. Measuring the speed of cars on the highway.
b. Sonar.
c. Designing car alarms for maximum efficiency.
d. Testing the resonant properties of stringed instruments.
e. Constructing perfect violin sound boxes.