How long does it take an airplane to fly 5000 miles if it maintains a speed of 240 miles per hour

Which best represents the law of conservation of mass ?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?