You do 20 J of work pushing a crate up a ramp. If the output work from the inclined plane is 11 J, then what is the efficiency of the inclined plane?

How does the respiratory system function?

Which of the following is a scalar quantity? A. 90 km/hr north B. 20 m/s at an angle of 25 C. 30 pounds D. 15 N down

What factors do not affect the final speed of a roller coaster?

What element has 7 neutrons, 7 protons and 7 electrons?

A bimetallic strip consists of two 1-mm thick pieces of brass and steel bonded together. At 20 C, the strip is completely straight and has a length of 10 cm. At 30 C, the strip bends into a circular arc.

List 2 carbon compounds found in organisms and their function/importance to the organism.

What happened on may 24 2002 in history

Match the characteristic or descriptive phrase to the type of application it describes. sound waves soft-tissue imaging electromagnetic wave fetal imaging

If a ball with an original velocity of zero is dropped from a tall structure and it takes 7 seconds to hit the ground, what velocity does the ball have when it reaches the ground? A. 34.3 m/s B. 68.6 m/s C. 156.8 m/s D. 240.1 m/s

A rectangular loop of copper wire of resistance r has width a and length b. the loop is stationary in a uniform magnetic field. the magnetic field b at time t = 0 seconds is directed into the page as shown below.