A man runs 300 m West in 60 seconds. He then runs 100 m North-west in 20 seconds.
What is his average velocity in metres per second?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

What are two different ways you could find the value of a? explain these methods.