The increase of potential energy of the box is 100 J

Indicate whether the statement is true or false


T

Physics & Space Science

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Evidence that a gas consists mostly of empty space is the fact that:

A. the density of a gas becomes much greater when it is liquefied B. gases exert pressure on the walls of their containers C. gases are transparent D. heating a gas increases the molecular motion E. nature abhors a vacuum

Physics & Space Science

An extrasolar planet in the HD 4308 system orbits its parent star at a distance of 17.1 million kilometers and takes 15.56 Earth days to complete one orbit

Given this and assuming that planet has a very low mass compared to the parent star, what is the mass of the parent star? A) 3.25 1030 kg B) 2.00 1030 kg C) 1.25 1030 kg D) 1.64 1030 kg

Physics & Space Science

The magnetic dipole moment of an electron (charge = ?e; mass = me) moving in a circular orbit of radius r with speed v about a nucleus of mass mN is proportional to

A. r. B. v. C. vr. D. evr. E. mNvr.

Physics & Space Science

What is the Q value for the following reaction?

7Li + 1p = 4He + 4He (7.016005 ) (1.007825 ) (4.002603 ) (4.002603 ) A) 13.35 MeV B) 13.57 MeV C) 15.37 MeV D) 17.35 MeV E) 17.53 MeV

Physics & Space Science