An attack helicopter is equipped with a 20-mm cannon that fires 174 g shells in the forward direction with a muzzle speed of 453 m/s. the fully loaded helicopter has a
mass of 2600 kg. a burst of 223 shells is fired in a 6.22 s interval. what is the resulting average force on the helicopter? by what amount is its forward speed reduced? plz i need !

In the 1980's, congress authorized the u. s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?

How would doubling the made of an object change the objects potential energy

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.