Edwin Hubble categorized galaxies according to their

A. shapes.

B. colors.

C. food supplies.

D. inhabitants.

What human made or natural features could interfere with weather radar?

Gravity can be describe as?

Mitosis and meiosis are two types of cell division. Explain the major difference between mitosis and meiosis.

Trey races his bicycle for 192m. A wheel of his bicycle turns 48 times as the bicycle travels this distance. What is the diameter of the wheel? Use the value 3.14 for π. Round your answer to the nearest tenth. Do not round any intermediate steps.

Which of the following best describes energy? A) Its ability to cause change B) It can never be created or destroyed C) It can be transformed to one object to another or transformed into different forms D) All of above

Which structure connects muscles to bone?

A firefighter mounts the nozzle of his fire hose a distance 36.9 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. After quenching a hotspot at a height of 8.

A force is applied to a 13.0 kg wagon to pull it down the sidewalk at a constant speed. The coefficient of kinetic friction is 0.65. Considering the resulting frictional force, what is the magnitude of the applied force?

What field (s) does a moving electron have? A. electric and gravitational fields B. magnetic and gravitational fields C. gravitational, electric, and magnetic fields D. electric field only

Copper has a specific heat of 0.385 j. A piece of copper absorbs 5000 J of energy and undergoes a temperature change from 100 Celsius to 200 degrees Celsius. What is the mass of the piece of copper?