A student pushes a 40-N block across the floor for a distance of 10 m. How much work was done to move the block?

400 Pascals
400 Newtons
400 Joules

400 Watts

How much energy moves onto the next level, in an energy pyramid

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.