Which of the following types of electromagnetic radiation has the greatest energy?

a. X-rays
b. visible light
c. radio
d. gamma rays
e. infrared radiation


d

Physics & Space Science

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A perpetual motion machine of the first kind

A. violates the first law of thermodynamics B. would be a good investment C. violates the second law of thermodynamics D. violates the zeroth law of thermodynamics

Physics & Space Science

Two small objects are suspended from threads. When the objects are moved close together, they attract one another. Which of the following could produce this result?

a. One object is negatively charged and the other is uncharged. b. One object is positively charged and the other is uncharged. c. One object is positively charged and the other is negatively charge. d. All of the above could result in such attraction.

Physics & Space Science

Gravitational force is greater for a satellite in elliptical orbit when it is at the

A) apogee (farthest point). B) perigee (closest point). C) zenith. D) same acceleration at all of the above places.

Physics & Space Science

When a capacitor is fully charged, the current through the capacitor in a direct-current circuit is

a. zero. b. at its maximum value. c. equal to the current in a resistive circuit in parallel with the capacitor circuit. d. greater than the current in a resistor that is farther from the battery than the capacitor. e. zero if it is the only capacitor, but maximum if there is another capacitor in series with it.

Physics & Space Science