Correct answers only ! which situation describes a directly proportional relationship? a. as your velocity increases, your time decreases. b. the volume always decreases as the pressure increases. c. a line on a graph has a downward (negative) slope. d. as your velocity increases, your distance also increases.

Determine the expected diffraction angle for the first-order reflection from the (310) set of planes for bcc chromium when monochromatic radiation of wavelength 0.0735 nm is used. the atomic radius for cr is 0.1249 nm.

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f