During a crash, a dummy with mass of 60.0k hits an airbag that exerts a constant force on the dummy. The acceleration of the dummy is -250m/s^2. What force did the airbag exerts on the dummy ?

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

The air that we breath is made mostly of which gaseous molecule