The study of celestial objects in the universe describes which field of physical science?

a. Physics

b. Chemistry

c. Astronomy

d. None of the above User: Scientific knowledge is

What do scientists use to predict the locations of electrons in atoms? a. probability b. algebra c. geometry d. ratios and proportions

I can't figure this out, I could use an explanation too! A speeding truck travels in the positive x direction. It hits a car traveling in the positive y direction. The vehicles are deformed and travel together at an angle θ with the positive x-axis.

A 5 g piece of Styrofoam carries a net charge of - 0.5 µC and floats above the center of a very large horizontal sheet of plastic that has a uniform charge density on its surface.

If the earth were not tilted on its axis, what would you expect to happen? A) Days would be shorter than 24 hours. B) A year would be longer than 365 days. C) We would not have seasons like we do now. D) There would be no day and night, just days.

If two parallel light rays hit a plane mirror, what will be their orientation to one another after they reflect? a. they will remain parallel. b. they will be perpendicular. c. it depends on the initial spacing between the light rays. d.

How are hypotheses and theories related to each other?

During the refrigeration cycle, what does the refrigerant do? Absorbs and releases thermal energy by first vaporizing then condensing. Absorbs and releases thermal energy by first condensing then vaporizing.

Find the unbalanced force required to accelerate a 6kg mass at 3ms

A bus travels 300 km south along a straight path with an average velocity of 85 km/h to the south. The bus stops for 22 minutes. Then it travels 220 km south with an average velocity of 78 km/h to the south.

In what way does varying the length of the string change the vibration