Sunday
December 8, 2013

# Posts by Paige

Total # Posts: 296

Math
The following table represents the diameter of the cross section of a wire at continuous heights (feet) above the ground. Assume that each cross section is circular. Height(ft) 2 6 10 14 18 22 26 30 Diameter 2 2 2.0 1.8 1.6 1.5 1.3 1.2 (feet) (those should all line up) a) Appr...

Physics
A researcher observes hydrogen emitting photons of energy 10.2 eV. What are the quantum numbers of the two states involved in the transition that emits these photons?

Physics
The speed of an electron is known to be between 3.0×10^6 m/s and 3.3×10^6 m/s . Estimate the uncertainty in its position. Change in X = ? M

Physics
What is the energy (in eV ) of a photon of visible light that has a wavelength of 500 nm ?

Physics
Zinc has a work function of 4.30 ev . A 4.50eV photon strikes the surface and an electron is emitted. What is the maximum possible speed of the electron?

Physics
A spherical virus has a diameter of 50mm . It is contained inside a long, narrow cell of length . What uncertainty does this imply for the velocity of the virus along the length of the cell? Assume the virus has a density equal to that of water.

Physics
The speed of an electron is known to be between 3.0×10^6 m/s and 3.3×10^6 m/s . Estimate the uncertainty in its position.

physics
The speed of an electron is known to be between 3.0×10^6 m/s and 3.3×10^6 m/s . Estimate the uncertainty in its position.

algebra
brad wants to buy flowers for his friend with 27 \$ . the daises are \$1 each and the roses are \$3 each. he buys 3 more daises then roses. how much did the roses cost?

Physics
Problem 17.11 Light from a helium-neon laser (wavelenght = 633 nm) is used to illuminate two narrow slits. The interference pattern is observed on a screen 3.0 m behind the slits. Thirteen bright fringes are seen, spanning a distance of 52 mm . Part A - What is the spacing (i...

Pages: <<Prev | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | Next>>

Search
Members