Why is it easier to read black text on a white background than to read green text of any light color?

By what factor would you need to adjust the length of a pendulum to make the period of 1/2 of what it used to be?

What principle encourages us to resolve a set of stimuli such as trees across a ridgeline into smoothly flowing patterns

It takes a car 1.75 h to go from mile marker 10 to mile marker 115. What is the average speed of the car? Someone who took this quiz? i will give brainliest A. 1.6 mph B. 60 mph C. 65 mph D. 183 mph

A lab assistant has been given data with units from an experiment to enter into the computer. Unfortunately, there are only numbers and no labels. Which of the following could be a wavelength? A. 10 m/s B. 20 Hz C. 30 cm D. 40 s

How could you increase the potential energy of the apple?

Wave can be described as A. a continuous transmission of energy from one location to the next B. The disturbance of particles in an area C. The transmission of energy through individual particles D. The motion of particles in a medium

A germ is also called a microorganism or a microbe. True False

What is 1.33Ω plus 2Ω?

As a fire truck approached Mary, the pitch of the siren got higher. once the fire truck passed and moved away, the sirens pitch got lower. this change in pitch is because in the sound waves

Find the magnitude of the sum of these two vectors