In a closed system, glider a with a mass of 0.40 kg and a speed of 2.00 m/s collides with glider b at rest with a mass of 1.20 kg. the two interlock and move off. what speed are they moving at?

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

If the wheels lock when braking suddenly the vehicle: a: loses traction b: lose steering wheel ability c: gain speed slightly d: gain steering ability

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b. refraction c. diffraction d. interference