_____ is the property of increasing pitch that accompanies increases in the tones frequency.

A compass in a magnetic field will line up __________.

Stern observed all of the following results except _______ in his experiment.

Restless tectonic plates move (shift) between one and fifteen centimeters per __________.

The ________ respects the new conductor.

Very small organisms, like paramecia or protozoa, moving around in water __________.

The radius of the nucleus is smaller than the radius of an atom by which of the following factors?

In a Young's experiment, 3 mm is the width of the fringes obtained with light having a wavelength of 9000 A. If the entire apparatus is immersed in a liquid of refractive index 1.33, then what is the fringe width?

If 0.8m is the distance between the two insulated charged spheres of charges 8.5 x10‘7 C each, then what is the force when the charges are doubled and the distance of separation among them is halved?

What is the correct value of the wavelength of the fourth spectral line (£51) in the Lyman series of the hydrogen spectrum?

What is the bandwidth of video signal required for the transmission of pictures?