A machine supply energy at a rate of 4000 W and does used to work at a rate of 3760 W what is the efficiency of the machine?

Which value indicates a dependence on the path an object travels? 5 m/s +5 m/s 0 m/s -5 m/s

Consider the two vectors A (with arrow above) = 5i-3j and B (with arrow above) = - i-2j 1. Calculate A (with arrow above) + B (with arrow above) 2. Calculate A (with arrow above) - B (with arrow above) 3.

As a wave travels through a medium, it displaces particles in a direction parallel to the motion of the wave. We can conclude this is a

Which of the following are electromagnetic waves? a. sound waves b. water waves c. ground waves l d. ight waves

How does brown algae move

Identify characteristics of objective personality tests. -self-report -scientific -paper-and-pencil -questions about behavior -objective -potentially biased answers Multiple Choice-Psychology

The Pony Express was a mail delivery system in the Old West that used a series of men on horseback to deliver mail from St. Joseph, MO to Sacramento, CA along a trail that was 2000 miles long.

In the virtual lab, calculations were made of the predicted diffraction angle, using the formula θ ≈ StartFraction lambda over L EndFraction.

What trends were seen in Mendeleev's periodic table?

Through which medium would EM waves travel the fastest? A. The Ocean B. The Atmosphere C. Rocks