Which structures protect the cell? Check all that apply.

- cell wall

- cell membrane

- mitochondrion

- nucleus

- ribosome

- Golgi body

Which of the following transfers charge most easily? Semiconductors, nonconductors? Conductors? Insulators?

A truck has a momentum of 1000 Kgm/s and a mass of 750kg. What velocity does the truck have

A uniform cylinder of radius 25 cm and mass 27 kg is mounted so as to rotate freely about a horizontal axis that is parallel to and 60.0 cm from the central longitudinal axis of the cylinder.

Which of the following would be valid reason to NOT build the power plant? Geothermal energy is not reliable at favorable sites b) The hot-water reservoirs can be depleted and it can disrupt ecosystems. c) Steam can still cause pollution.

If Earths gravitational pull got 3 times stronger ... What would happen to our weight?

The puzzle box is traditionally associated with the work of

A 0.95-kg sample of water at 11°C is in a calorimeter. You drop a piece of steel with a mass of 0.39 kg at 212°C into it.

Let the magnitudes of two displacement vectors be 4 m and 8 m, respectively. If the two vectors are added, the magnitude of the resultant vector. A. is exactly equal to 4 m. B. is exactly equal to 12 m. C. is greater than 12 m. D.

justin pushes basket of toys with 50N of force for 3 meters in 100 seconds. how much work did he do on the basket

In general, what can be said about metals.