Scientist suggest that galaxies are moving away from Earth due to

A. Dark energy

B. Doppler shift

C. Energy

D. Solar energy

How much of each food dollar goes to the producer

Scientists use critical thinking skills throughout the process of research or information a student noticed that their energy level always seems to decrease when they drink soda but they seem to have more energy when they don't drink soda the

A person who weighs 782 n steps onto a spring scale in the bathroom, and the spring compresses by 0.547 cm. (a) what is the spring constant? (b) what is the weight of another person who compresses the spring by 0.336 cm?

Explain the effect of earths gravity on objects on the surface of earth

An 800-g block of ice at 0.00°C is resting in a large bath of water at 0.00°C insulated from the environment. After an entropy change of this system of 600 J/K, how much ice remains unmelted? The latent heat of fusion of water is 333 J/g.

How much work would it take to move a coulomb charge across a 4 volt potential difference?

Why do people eat vegetables? Not just to stay healthy! But why else do we eat and need vegetables?

How many additional electrons does this atom of oxygen need in its valence shell to satisfy the octet rule?

In the movie "Santa Claus is Coming to Town", the Mayor Burgermeister Meisterburger outlaws toys after tripping on a rubber duck. To make rubber ducks un-crushable while being delivered by Santa, the ducks are filled with an inert, harmless gas. A 2.

Which of the following represents a chemical change? rocks being smoothed by rapid water movement the pink color of a rose iron's attraction to a magnet decomposition of stone due to acid rain