A ray of light is incident on the mid-point of a glass prism surface at an angle of 24.0° with the normal. For the glass, n = 1.55, and the prism apex angle is 44.3°. What is the angle of refraction as the ray enters the air on the far side of the prism?
a. 0.853°
b. 48.9°
c. 18.3°
d. 11.7°
e. 29.1°
b
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Carnot Engine: What is the efficiency of an ideal Carnot engine operating between a reservoir in which ice and water coexist, and a reservoir in which water and steam coexist? The pressure is constant at 1.0 atm for both reservoirs.
A. 27% B. 0.27% C. 100% D. 1.0% E. 15%
You would expect millisecond pulsars to be:
A) part of a binary system. B) isolated in space. C) rotating slowly. D) most common in open clusters. E) collapsing rapidly.
A car and driver have a total mass of 945 kg. While rounding a curve on a flat road at a speed of 29 m/s, the net force acting on the car and driver is determined to be 56,767.5 N. The radius of the curve is__________
Fill in the blank(s) with correct word
A 12-kg projectile is launched with an initial vertical speed of 20 m/s. It rises to a maximum height of 18 m above the launch point. What is the change in mechanical energy caused by the dissipative (air) resistive force on the projectile during this ascent?
a. -0.64 kJ b. -0.40 kJ c. -0.52 kJ d. -0.28 kJ e. -0.76 kJ