If energy is carried by the bulk motion of matter, that is called ____________________

Fill in the blank(s) with correct word


convection

Physics & Space Science

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Rotational Kinetic Energy: The L-shaped object shown in the figure consists of three small masses connected by extremely light rods. Assume that the masses shown are accurate to three significant figures. How much work must be done to accelerate the object from rest to an angular speed of 3.25 rad/s (a) about the x-axis, (b) about the y-axis?

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

Silver has a Fermi level of 5.5 eV. At 0 K, what is the speed of the electrons with the Fermi speed?

A) 1.4 × 106 m/s B) 1100 m/s C) 2200 m/s D) 0 E) 1.1 × 106 m/s

Physics & Space Science

Pulsars are rapidly spinning

A) regular stars like our Sun. B) red giant stars. C) neutron stars. D) white dwarfs. E) supernova.

Physics & Space Science

Approximately how many extrasolar planets have been discovered to date?

A) tens B) hundreds C) thousands D) millions E) billions

Physics & Space Science