Entropy is a state function
Indicate whether the statement is true or false
TRUE
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A charge of 50-?C is placed on the y axis at y = 3.0 cm and a 77-?C charge is placed on the x axis at x = 4.0 cm. If both charges are held fixed, what is the magnitude of the initial acceleration of an electron released from rest at the origin?
A. 1.2 × 1020 m/s2 B. 1.5 × 1020 m/s2 C. 1.0 × 1020 m/s2 D. 1.8 × 1020 m/s2 E. 2.0 × 1020 m/s2
What do you call the first day of spring?
A. Vernal Equinox B. Solstice C. New Moon D. June 21 E. Autumn
Express -40°C in °F
A) -72°F B) 4.4°F C) -40°F D) -54°F
A particle of charge q travels with velocity v in the same direction as the magnetic field, B. What is the force exerted on the charge?
1. qvB, in the direction of the magnetic field 2. qvB, in the direction opposite that of the magnetic field 3. qvB, in a direction perpendicular to the magnetic field and the velocity 4. zero