Joanna drove a car at 30km/hr. What is the speed in m/s?

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.