Why is Portland, Oregon a good city for biking

Scientists always prove or disprove their explanations by?

How do cell phone hammers disable the communication between cell phones and nearby towers

A duplicated chromosome is made of two identical structures is called?

As a proton moves in a direction perpendicular to the electric field lines,

What factors determine the magnitude of the electric force between two particles? a. charge and distance b. mass and distance c. charge and density d. mass and charge

Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?

Which has a greater speed a heron hat travels 600m in 60 seconds or a duck that travels 60 m in 5 seconds? Explain

A machine shovel moves dirt at the rate of 1,100 pounds of dirt 1 foot in 1 second. How many horsepower is this?

Two descriptions about physical quantities are given below: Quantity A: It is a force. Quantity B: It changes when the object travels from Earth to Earth's moon. What quantities are these most likely describing? A.

How does the tilt of Earth's axis affect how the sun's rays strike Earth?