If 2 balls have the same volume, but ball A has twice as much mass as ball B, which one will have the greater density

A train deports from a station at a constant acceleration of 5 m/s what is the speed of the train at the end of 20 seconds?

Jerry measured the mass of the rubber ball to be 12.5 g. His calculated volume was 10.3 cm3. Using the formula density = mass/volume, and the correct number of significant digits, Jerry should record the density as ... 1.21 g/cm3 1.2 g/cm3 1 g/cm3 1.

Positive ions from a base and negative ions from an acid form a.

A car goes around in a circular curve on a horizontal road at constant speed. what is the direction of the friction force on the car due to the road?

A current in a wire increases from 2 A to 6 A. How will the magnetic field 0.01 m from the wire change? It increases to four times its original value. It increases to three times its original value. It decreases to one-fourth its original value.

StarsA. begin as protostars, which fire up when they collapse and become denser and hotter. B. create elements by splitting the nuclei of small atoms into the nuclei of larger atoms. C. have unlimited amounts of fuel and therefore exist indefinitely.

The "atomic weight" of an atom reflects the average number of A) protons. B) neutrons. C) electrons. D) protons + neutrons. E) protons + neutrons + electrons.

How fast would a 2-kilogram object need to move to have the same kinetic energy as a 4-kilogram object moving at 8 meters per second?

The frequency of the George Washington Bridge is 2.05 Hz. What is its period?

Is speed and average speed the same thing?