Nwhich of the following types of engine is the air-and-fuel mixture ignited by the heat created during the compression stage, rather than by a spark plug? a. an lp gas engine b. an electric engine c. a rotary engine d. a diesel engine

=force × distance a. work b. velocity c. pressure d. momentum

An airplane is flying with a velocity of 240 m/s at an angle of 30.0∘ with the horizontal, as the drawing shows. when the altitude of the plane is 2.4km,a flare is released from the plane. the flare hits the target on the ground. what is the angle θ?

Why is a noble gas different from other elements