N a scientific investigation, what is the name for a prediction that can be tested?

In describing a vector, what must you describe besides the magnitude? O A. Its direction O B. Its a scalar quantity O C. Its length O D. Its resultant

Unpolarized light passes through two ideal Polaroid sheets. The axis of the first is vertical and the axis of the second is at 37.0° to the vertical. What fraction of the incident light is transmitted?

An astronomer observes an asteroid in the solar system. He notes that the asteroid is three times farther from the Sun than Earth is. How far away from the Sun is the asteroid in astronomical units?

Calculate the frequency of each wavelength of electromagnetic radiation:12.24 cm (wavelength of microwave oven)

How many (whole number of) 91 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton? A metric ton is 1.000 * 103 kg. Answer in units of people.

My science fair project is: Texting Versus Talking - Effects of Cell Phones on Reaction time. What should I research?

The shape of earth's land masses and the of tilt its axis could have triggered climate changes in the past. True False

When you look at a single slit diffraction pattern produced on a screen by light of a single wavelength, you see a bright central maximum and a number of maxima on either side, their intensity decreasing with distance from the central maximum.

Two particles with the same charge will repel each other. True or false

your friend is bragging about his motorcycle. he claims that it can go from a stop in position to 50 mph in three seconds. He is describing the motorcycles