Again in a movie projector, where is the film positioned?

a. A little under one focal length behind the lens.

b. Exactly one focal length behind the lens.

c. A little over one focal length behind the lens.

If an object's mass is constant, what is its momentum proportional to? 1. Its velocity 2. Its weight 3. Its displacement 4. Its moment of inertia

What is a type of pollution which is caused by particales in air is called

Any formation in which groundwater Rises on its own under pressure is a

An object on Earth weighs 120N. What is it's mass?

The partial pressure of ethanol in the air above a sample of liquid ethanol in a closed container is 19.5 torr, at a given experimental Temperature. Assuming the pressure inside the container is 758.

Which type of reaction will for a chemical bonded combination

What kind of change is salt dissolving in water

Which of these is the most effective way for manny to cool down after kickboxing? start static stretches to increase his flexibility walk around to lower his heart rate sit and catch his breath to avoid light-headedness run one to three miles to

One of the driving forces of plate motion is: A. volcanic eruptions along coastlines B. meteor impacts in the ocean basins C. convection currents in the mantle D. hot liquid magma in the inner core

Which element is required for the combustion of fossil fuels? nitrogen hydrogen oxygen carbon