Practice Problems 9. An ostrich is running at a speed of 17.0 m/s in a direction of 68.0° north of west. What is
the magnitude of the ostrich's velocity component that is directed (a) due north and (b)
due west?

Hydrogen and helium are both members of?

Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656(red) and 486 (blue). light from a hydrogen lamp illuminates a diffraction grating with 500 lines per mm, and the light is observed on a screen 1.50 behind the grating. what is the distance between the first-order red and blue fringes?