Questions from College Physics

Q: A suspension bridge is 60.0 m above the level base

A suspension bridge is 60.0 m above the level base of a gorge. A stone is thrown or dropped from the bridge. Ignore air resistance. At the location of the bridge g has been measured to be 9.83 m/s2. (...

Q: A reflection grating spectrometer is used to view the spectrum of light

A reflection grating spectrometer is used to view the spectrum of light from a helium discharge tube. The three brightest spectral lines seen are red, yellow, and blue in color. These lines appear at...

Q: A 15.0 g conducting rod of length 1.30

A 15.0 g conducting rod of length 1.30 m is free to slide downward between two vertical rails without friction. The ends of the rod maintain electrical contact with the rails. The rails are connected...

Q: A spectrometer is used to analyze a light source. The screen

A spectrometer is used to analyze a light source. The screen-to- grating distance is 50.0 cm, and the grating has 5000.0 slits/cm. Spectral lines are observed at the following angles: 12.98°, 19.0°, 2...

Q: Compare the electric energy that can be stored in a capacitor to

Compare the electric energy that can be stored in a capacitor to the magnetic energy that can be stored in an inductor of the same size (i.e., the same volume). For the capacitor, assume that air is b...

Q: White light containing wavelengths from 400 nm to 700 nm is shone

White light containing wavelengths from 400 nm to 700 nm is shone through a grating. Assuming that at least part of the third-order spectrum is present, show that the second- and third-order spectra a...

Q: A square loop of wire is made up of 50 turns of

A square loop of wire is made up of 50 turns of wire, 45 cm on each side. The loop is immersed in a 1.4 T magnetic field perpendicular to the plane of the loop. The loop of wire has little resistance...

Q: A grating 1.600 cm wide has exactly 12000 slits.

A grating 1.600 cm wide has exactly 12000 slits. The grating is used to resolve two nearly equal wavelengths in a light source: λa = 440.000 nm and λb = 440.936 nm. (a) How many orders of the lines c...

Q: In the past, bicycles used small bottle-shaped dc generators

In the past, bicycles used small bottle-shaped dc generators to power the headlight. A small wheel (the top of the “bottle”) in contact with a tire caused the shaft of the generator to rotate. Suppose...

Q: A grating spectrometer is used to resolve wavelengths 660.0 nm

A grating spectrometer is used to resolve wavelengths 660.0 nm and 661.4 nm in second order. (a) How many slits per centimeter must the grating have to produce both wavelengths in second order? (The...