If a car is traveling at a constant speed of 70 kilometers per hour how many hours will it take for the car to travel a distance of 280 kilometers?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life

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?