The structure of which substances tends to exhibit the greatest hardness?

A. pure metals

B. pure nonmetals

C. ionic compounds

D. covalent compounds

Why machines are never 100 percent efficient

Which describes an electromagnetic wave? a transverse wave consisting of electric fields and magnetic fields traveling through matter a longitudinal wave that can travel through matter or empty space a transverse wave consisting of changing electric

What color bends the most

A built-in-end cantilever support is replaced with what reaction force (s) when a free body diagram is being drawn. A.) A reaction force in the X axis B.) A moment force C.) All of these D.) None of these E.) A reaction force in the Y axis

When did the objects that we now see as asteroids and comets form in the solar system? when did the objects that we now see as asteroids and comets form in the solar system?

Match the term to the correct description. ~A type of circuit where part of the loop is broken. ~The flow of electrons. ~A loop that creates a pathway for electricity to follow. ~A type of circuit with only one path for the electricity to follow.

What is the mass of an object that is accelerating at 10 m/s^2 when a force of 2,386 N is exerted

According to the U. S. Green Building Council, what percentage of the world's energy use and greenhouse gas emissions can be attributed to buildings?

Magnets are often fitted to the doors of refrigerators and cupboards WHY?

Which data set has the smallest standard deviation? A. 7, 8, 89, 1005, 23400, 5, 3 B. 1000, 1001, 1002, 1000, 1001, 1001 C. 55, 90, 34, 78, 15, 20, 19 D. 1, 9, 120, 9, 1, 1, 9