Questions from College Physics

Q: In terms of the original diameter d, what new diameter will

In terms of the original diameter d, what new diameter will result in a new spherical volume that is a factor of eight times the original volume? (a) 8d (b) 2d (c) d/2 (d) d × ∛2 (e) d/8

Q: How many significant figures should be written in the sum 4.

How many significant figures should be written in the sum 4.56 g + 9.032 g + 580.0078 g + 540.439 g? (a) 3 (b) 4 (c) 5 (d) 6 (e) 7

Q: The equation for the speed of sound in a gas states that

The equation for the speed of sound in a gas states that. Speed v is measured in m/s, γ is a dimensionless constant, T is temperature in kelvins (K), and m is mass...

Q: A laser beam is incident on two slits with a separation of

A laser beam is incident on two slits with a separation of 0.200 mm, and a screen is placed 5.00 m from the slits. If the bright interference fringes on the screen are separated by 1.58 cm, what is th...

Q: A pair of parallel slits separated by 2.00 x 10

A pair of parallel slits separated by 2.00 x 10-4 m is illuminated by 633 - nm light and an interference pattern is observed on a screen 2.50 m from the plane of the slits. Calculate the difference in...

Q: Lead has a prominent x - ray emission line at 75.

Lead has a prominent x - ray emission line at 75.0 keV. (a) What is the minimum speed of an incident electron that could produce this emission line? (b) What is the wavelength of a 75.0 - keV x - ray...

Q: When x - rays of wavelength of 0.129 nm are

When x - rays of wavelength of 0.129 nm are incident on the surface of a crystal having a structure similar to that of NaCl, a first - order maximum is observed at 8.15°. Calculate the inter-planar sp...

Q: Potassium iodide has an inter-planar spacing of d = 0

Potassium iodide has an inter-planar spacing of d = 0.296 nm. A monochromatic x - ray beam shows a first - order diffraction maximum when the grazing angle is 7.6°. Calculate the x - ray wavelength.

Q: The first - order diffraction maximum is observed at 12.6

The first - order diffraction maximum is observed at 12.6° for a crystal having an inter-planar spacing of 0.240 nm. How many other orders can be observed in the diffraction pattern, and at what angle...

Q: X - rays of wavelength 0.140 nm are reflected from

X - rays of wavelength 0.140 nm are reflected from a certain crystal, and the first - order maximum occurs at an angle of 14.4°. What value does this give for the inter-planar spacing of the crystal?...