If a substance cannot be physically separated into component parts, it is likely to be

If the gravity of earth changes, would we all get flung into space?

Which galaxy resembles a sombrero? A. M104 B. Milky Way C. NGC 4414 D. Andromeda

The weight of an apple near the surface of the Earth is 1 N. What is the weight of the Earth in the gravitational field of the apple?

You have a machine that can only handle 3 significant digits. Let x=25.74 y=9.370 and both have 4 correct figures. What is the correct numerical value for z=x-y on this machine?

What happens to the orbit of earth when its velocity is halved

An object is thrown upwards with the speed of 40.0 km/hr in 5 second, calculate the distance in millimeters (mm).

What controls the net direction of molecules?

Dispersion is the separation of white light into separate colors by A. differences in wavelength B. differences in wave amplitude C. the blocking of light D. constructive interference

Why would a person choose to tie a helium-filled balloon to a child's wrist instead of simply having the child hold on to it? A. Helium is less dense than air, so it will float above air if the child lets go of the balloon. B.

What process is the method by which a neutral object obtains an electrical charge?