What did nicolaus copernicus discover about the universe

What is the formula to calculate the mechanical advantage of a lever

Select all of the statements that are true.

Consider two identical small steel balls dropped into two identical containers, one filled with water and the other with oil. Which ball will reach the bottom of the container first? Why?

Metallic bonding is similar to ionic bonding because? A. electrons are transferred between atoms. B. electrons are shared between atoms. C. the lattice that forms contains anions and cations. D.

Which statements accurately describe the Doppler effect? Check all that apply. It is used to learn about the behavior of the universe. It was used by Hubble to measure velocities of galaxies. It indicates galaxy motion through light wavelengths.

Which of the following choices best represents a potential stressor?

How do you distinguish between speed, velocity, and acceleration?

The force of friction on a sliding object is 10n. the applied force needed to maintain a constant velocity is:

What is the best hypothesis to use for this investigation

Quantum physics would most likely be needed to understand the motion of which of the following? A. an atom B. a cell C. a ball D. a galaxy