A certain copper wire has a resistance of 10.5 ω. at what fraction of the length l must the wire be cut so that the resistance of one piece is 9.0 times the resistance of the other?

Which of the following is most needed for cosmotologists to study the age of the universe

In order for life to survive, bodies or cells must adjust to environmental conditions. This is called

Which best describes what happens in an electric generator? Motion causes constantly changing magnetic fields to induce electrical energy. Motion causes constantly changing magnetic fields to induce kinetic energy.

Which type of rock can be either foliated or non-foliated? a. sedimentary b. metamorphic c. igneous?

A sprinter runs 500 meters west in a straight line and then turns around and runs in the same straight line 300 meters east. What is the runner's displacement?

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.