A2,000-kg test car, traveling 60 m/s hits a brick wall. using motion pictures, the time involved is determined to be 0.050 s. what is the magnitude of the force that the car exerts on the wall?

Which energy transformation occurs in the core of a nuclear reactor? nuclear energy mechanical energy nuclear energy - thermal energy thermal energy -- nuclear energy mechanical energy - nuclear energy

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons