What is the intensity level of a sound with an intensity of 0.000127 W/m2?

65 dB

72 dB

81 dB

120 dB

How many liters of air are in a room that measures 10.0 ft à 11.0 ft and has an 8.00 ft ceiling? 1 in. = 2.54 cm (exactly); 331l=10cm?

Why is the efficiency of a machine never 100%

Natural selection is defined as A. the changes that occur in an organism over its lifespan. B. the changes in the characteristics within a population that lead to survival. C. the changes that occur in a population that do not affect survival. D.

As compared to developing countries, developed countries have a A higher average income, a higher rate of population growth, and produce more waste. B lower average income, a higher rate of population growth, and produce less waste.

An object is dropped from a height of 25 meters. At what velocity will it hit the ground? A. 7.0 meters/second B. 11 meters/second C. 22 meters/second D. 49 meters/second E. 70 meters/second

How to get to the daley center from pink line?

nitially, scientists described atoms as the smallest particles of matter. However, smaller particles within atoms were discovered. How did the scientific world respond to this new information?

The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

An engineer wants to set up simple password protection with no usernames for some switches in a lab, for the purpose of keeping curious co-workers from logging into the lab switches from their desktop PCs.

How are frequency and wave period related?