Which types of matter are made of atoms

Ryan's family drives from san diego to phoenix. they continue from phoenix to flagstaff, and finally back home to san diego.

A compound is 24.7% calcium, 1.2% hydrogen, 14.8% carbon, and 59.3% oxygen. write the empirical formula and name the compound.

Why does a helium balloon rise in the air while an ordinary balloon filled with air does not?

As a skydiver jumps out of a plane, which of the following best describes the type and amount of energy the skydiver possesses: A) All Kinetic B) All Potential C) Some Kinetic And Some Potential D) No Energy, All Work Is Being Done By Gravity

Two light bulbs, A and B, are connected to a 120-V outlet (a constant voltage source). Light bulb A is rated at 60 W and light bulb B is rated at 100 W. Which light bulb has a greater filament resistance?

An 8 kilogram bowling ball is rolling in a straight line toward you. if its momentum is 16 kg * m/s, how fast is it traveling?

Explain why a moving object can be in equilibrium

Design an investigation to compare the durability of the three different brands

The surface area of the skin of a person who is 70 inches tall and weighs w pounds can be estimated by s (w) equals=342 w superscript 0.425342w0.425 , where s is in square inches.

The train speeds passed Holly at 70 km/h north ward. This spider crawls past lukes foot in the same direction at 30 m/h. What is the velocity of the spider relative to Holly?