A3250-kg aircraft takes 12.5 min to achieve its cruising
altitudeof 10.0 km and cruising speed of 850 km/h. if the
plane'sengines deliver on average, 1500 hp of power during this
time, whatis the efficiency of the engines?

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy