Write a hypothesis about the effect of the angle of the track on the acceleration of the cart. use the "if . . then . . because . .” format and be sure to answer the lesson question: "how does an object's position and velocity change as the object accelerates? ”

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the

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?