An object that is 2.0 cm tall is placed at the center of curvature in front of a concave mirror. How tall is its image?
A) 0.50 cm
B) 1.0 cm
C) 1.5 cm
D) 2.0 cm
E) infinite
D
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Suppose you put two protons near each other. Because of the electromagnetic force, the two protons will
A) collide. B) remain stationary. C) attract each other. D) repel each other. E) join together to form a nucleus.
Two identical planets orbit a star in concentric circular orbits in the star's equatorial plane. Of the two, the planet that is farther from the star must have
a. the smaller period. b. the greater period. c. the smaller gravitational mass. d. the larger gravitational mass. e. the larger universal gravitational constant.
Identify the correct sequence of life events for a high mass star
A) red supergiant, main sequence, neutron star, supernova B) red supergiant, main sequence, supernova, neutron star C) main sequence, red supergiant, supernova, neutron star D) main sequence, red supergiant, neutron star, supernova
A 2.15 kg lightly damped harmonic oscillator has an angular oscillation frequency of 0.261 rad/s. If the maximum displacement of occurs when t = 0.00 s, and the damping constant b is 0.74 kg/s what is the object's displacement when t = 4.01 s?
A) 0.50 m B) 0.43 m C) 0.58 m D) 0.65 m