The Jewish calendar is kept roughly synchronized with a solar calendar by

A) having a thirteenth month with 5 days each year.
B) adding a thirteenth lunar month to 7 out of every 19 years.
C) having the first lunar month begin on the spring equinox.
D) skipping a month every 7 out of 19 years.
E) having the first lunar month begin on the summer solstice.


B

Physics & Space Science

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In a paramagnetic material the magnetic susceptibility is

(a) Linearly dependent upon temperature. (b) Independent of temperature. (c) A nonlinear function of temperature. (d) Inversely dependent upon temperature.

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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.

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A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 of water and the surface area of the bottom of the container is 5.00 The height of the lower part of the container is 2.50 m and the neck contains a column of water 8.50 m high. The total volume of the column of water in the neck is 0.200 What is the magnitude of the force exerted by the water on the bottom of the container?

A.
B.
C.
D.

Physics & Space Science

A 60.0-Hz AC generator with a peak voltage of 110 V drives a series RC circuit with R = 10.0 ? and C = 300 ?F. The power factor, cos ?, is

A. ?1.00. B. ?0.749. C. +0.749. D. +0.834. E. +1.00.

Physics & Space Science