Explain how friction keeps a nail in place in a block of wood. If you try pull out the nail which way does friction act?

The ultraviolet catastrophe is most closely associated with which phenomenon? A. Photoelectric effect B. Blackbody radiation C. Emission spectra D. Quantum mechanics

The scientific name of the Asian elephant is Elephas maximus. What does this name show about the organism's classification? A The genus is Elephas. B The family is maximus. C The phylum is Elephas. DThe kingdom is maximus.

A siren mounted on the roof of firehouse emits sound at a frequency of 815 Hz. A steady wind is blowing with a speed of 14.4 m/s. Take the speed of sound in calm air to be 343 m/s (a) Find the wavelength of the sound upwind of the siren.

What happens to an electromagnetic wave that is stretched or squeezed together in space?

A 2.0-kg ball has a momentum of 25 kg*m/s what is the balls speed

9. What is the uncertainty of the measurement of a voltage measurement on the oscilloscope when the vertical scale is set to 2V / division, given that it uses an 8-bit D/A converter?

A 7 kilogram cat is resting on top of a bookshelf that is 3 meters high. What is the cat's gravitational potential energy relative to the floor?

What two factors determine the speed of sound

Is electric charge a property of just electricity or is charge a property of all atoms?

Which of the gases found in the Earth's atmosphere is an important factor for weather conditions? A) oxygen B) hydrogen C) nitrogen D) water vapor