In which situation did the car achieve the greatest efficiency? (Assume the cars all have the same mass.)(1 point) a car that traveled 80 kilometers on 5.0 liters of gas

a car that traveled 90 kilometers on 6.0 liters of gas

a car that traveled 50 kilometers on 4.0 liters of gas

a car that traveled 70 kilometers on 5.0 liters of gas

An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90