Which medium below conducts sound the fastest?

A. a wall

B. Steel

C. Plastic

D. Cardboard

This equation indicates that the reaction gives off heat. What is this type of reaction called? C3H8 + ? O2 → 3CO2 + 4H2O + heat A. synthesis reaction B. decomposition reaction C. endothermic reaction D. exothermic reaction

An object initially at rest experiences an acceleration of 0.281 m/s2 to the South for a time of 5.44 seconds. It then increases its acceleration to 1.43 m/s2 to the South for an additional 2.42 seconds.

E. m. f physical dimension

Where is the best place to store a fire extinguisher on a boat?

Which of the following pressures rises and falls with the phases of breathing but eventually equalizes with the pressure of the air in the environment?

When a wire loop is connected to a battery, what is produced in the loop?

A solid sphere of radius R has a total charge Q distributed evenly throughout its volume. What fraction of the total charge is located inside a radius R/2?

What is Nothing. (sorry i have been wondering this for a very long time)

What is the speed of a bobsled whose distance-time graph indicates that it traveled 123m in 28s?

Eric has a mass of 80 kgkg. He is standing on a scale in an elevator that is accelerating downward at 1.7 m/s2m/s2. What is the approximate reading on the scale?