A bike at rest moves to 2 m/s in 2 seconds. Find the acceleration. Use: Acceleration = (final velocity - initial velocity) / time.

In a system, when potential energy decreases, then entropy also decreases. true false

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.