A bag of books took 3 minutes to move you did 12900 j if work how much power was required to move the bad

As the arm lifts the mass, does elbow angle increase or decrease?

What happens when a source of energy causes a medium to vibrate?

Suppose that the entire Universe began to contract (collapse) right now. Five billion years from now, an astronomer looking at the spectra of galaxies. What would be the changes noted? A.

Qué le sucede a la intensidad de la luz de cada bombillo en un circuito en serie si agregas más bombillos al circuito?

Which step of scientific inquiry involves organizing and interpreting the data? It's not A trust me. a. Experimentation b. Analysis c. Conclusion d. Hypothesis

The man fire a 50-g arrow that moves at an unknown speed. It hits and embeds in a 350-g block that slides on an air track. At the end, the block runs into and compresses a 4000-N/m spring 0.10 mm.

If in 30 minutes Allex runs to a store that is 4 km away, what is her average speed in km/h? km/h

List two ways you changed the speed of the ball without changing its direction ...

The mass number of a nucleus (except Hydrogen) is:

Which represents a conversion from light energy to electrical energy