When is L larger than XL

A 0.050 kg bullet strikes a 5.0 kg stationary wooden block and embeds itself in the block. The block and the bullet fly off together at 9.0 m/s. What was the original velocity of the bullet?

How to calculate angular frequency from acceleration?

Do you think you could identify a mystery substance using only its mass or weight? Explain your answer.

A mysterious rocket-propelled object of mass 45.0 kg is initially at rest in the middle of the horizontal, friction-less surface of an ice covered lake. Then a force directed east and with magnitude F (t) = (16.8 N/s) t is applied.

Researchers want to use edna to look for an invasive species in a waterway. which of these steps should they do first? a. precipitate dna in each sample. b. sort dna into bands on a gel. c. cut dna into small pieces. d. amplify the amount of dna.

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?

What is the mass number of a potassium atom that has 20 neutrons