Consider a two-slit interference experiment like the one shown in figure Q3.7b. The distance between adjacent bright spots in the interference pattern on the screen (A) increases, (B) decreases, or (C) remains the same if, (a) The wavelength of the light increases.
A. increases
B. decreases
C. remains the same
A. increases
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As a car moves forward on a level road at constant velocity, the total force acting on the tires is:
a. greater than the normal force times the coefficient of static friction. b. equal to the normal force times the coefficient of static friction. c. the normal force times the coefficient of kinetic friction. d. zero.
A 1.0-g bead is at (-2.0 cm, 2.0 cm), a 2.0-g bead is at (2.0 cm, -4.0 cm), and a 3.0-g bead is at (2.0 cm, 0.0 cm). What are the coordinates of the center of mass of this system of beads?
What will be an ideal response?
The Greenland ice sheet can be one km thick. Estimate the pressure underneath the ice where it is 0.80 km deep. (The density of ice is 918 kg/m3.)
a. 9.0 × 10^5 Pa (9 atm) c. 7.2 × 10^6 Pa (72 atm) b. 2.5 × 10^6 Pa (25 atm) d. 9.0 × 10^6 Pa (90 atm)
Which shape best describes how stars look when seen through a telescope?
a. five-point star b. disk c. point d. seven-point star