In a crash test, a 2,500 kg car hits a concrete barrier at 1.3 m/s2
Calculate the amount of force at which the car strikes the barrier.
The car strikes the barrier with a force of

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm