The low-frequency speaker of a stereo set has a surface area of 0.06 m2 and produces 2.03 W of acoustical power. What is the intensity at the speaker (in W/m2)

What is the entropy change associated with the expansion of one mole of an ideal gas from an initial volume of v to a final volume of 5.50v at constant temperature?

What is true if mass is conserved in a reaction

What safety feature melts to protect a circuit?

Can a machine be more than 100% efficient? yes no impossible to determine

A book sitting on a shelf has gravitational potential energy. true or false

The slope of a velocity time graph over any interval of time gives the during that interval

if light travels in a vacuum at 3.00 x 10^8m/s and its frequency is 7.44 x 10^7 what is its wavelength

the half-life of carbon - 14 is 5730 years. What fraction of carbon-14 would remain after 11,460 years?

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

A proton, starting from rest, accelerates through a potential difference of 1.0 kV and then moves into a magnetic field of 0.040 T at a right angle to the field. What is the radius of the proton's resulting orbit