You must raise the weight to a height of 10 meters. You cannot do it! Thinking back to what you have learned in science class, you set up the pulley you see here. How does using this pulley reduce the force needed to lift the weight 10 meters?

The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space