When we observe a distant galaxy whose photons have traveled for 10 billion years before reaching earth, we are seeing that galaxy as it was when the universe was?

How to get period squared

What happens to the orbit of Earth when the mass of the Sun is reduced to 75,000? a. The orbit does not change c. The orbit gets larger b. The orbit gets smaller d. The Sun begins to orbit the Earth

Given equal time periods, which statement about radioactive waste is correct? A. Nuclear fusion generates more radioactive waste than radioactive decay does. B. Nuclear fusion generates more radioactive waste than nuclear fission does. C.

Two cars leave a city, one traveling east and the other west. The car going east is traveling at 64 mph and the car going west is traveling at 60 mph. How long before they are 434 miles apart?

It takes much longer to bake a whole potato than potatoes that have been cut into pieces why?

How is the energy of a nuclear reactor converted to electricity?

Assuming one nerve impulse must end before another can begin, what is the maximum firing rate of a nerve in impulses per second? Assume that it takes a millisecond for an impulse to travel through a nerve cell.

Which of the following statements has NOT been indicated by research on food and hunger behaviors? A) Forcing children to eat specific foods often has a negative effect on food preference.

Loghan and Kyle want to see if the type of ice cream in the freezer affects how hard or soft it is. Each time they placed a new brand of ice cream in the freezer, they put it in a different place.

2. If you wanted to create a voltage source using magnetic induction, which device would you use? A. Battery B. Thermocouple C. Dry cell D. Generator