Why is the efficiency of a machine never 100%

What did you observe when food coloring was added to the glass that was not in the cake pan?

A volleyball player hit a ball with a mass of 0.25 kg. The average acceleration of the ball was 15.5 m/s². How much force did the volleyball player apply to the ball? A. 3.87 m/s² B. 62.0 m/s² C. 3.87 N D. 62.0 N

What two parts make up velocity?

What a relationship between flame color and chemical name.

If there is no electric current flowing through a wire then what happens to the magnetic field

Which statements about energy are true? A. Energy is only Found in moving objects B. Energy is never created C. Energy can move matter D. Energy is the same as force E. Energy is never destroyed

Which phrase defines gross domestic product (GDP)

Which best describes a difference between energy transformations in power plants and dams?

A subsonic airplane is flying at a 5000-m altitude where the atmospheric conditions are 54 kPa and 256 K. A Pitot static probe measures the difference between the static and stagnation pressure to be 22 kPa.

For much of the year this desert is hot dry and windy. What type of plant would you most expect to survive in this climate