An atomizer works because of

a. Archimedes' principle.
b. Pascal's principle.
c. Bernoulli's principle.
d. Torricelli's principle.
e. none of these principles.


c

Physics & Space Science

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In a double-slit experiment, the distance between the slits is 0.2 mm, and the distance to the screen is 150 cm. What wavelength (in nm) is needed to have the intensity at a point 1 mm from the central maximum on the screen be 80% of the maximum intensity?

a. 900 b. 700 c. 500 d. 300 e. 600

Physics & Space Science

Elastic Collisions: A 50-g ball moving at 10 m/s in the +x direction suddenly collides head-on with a stationary ball of mass 100 g. If the collision is perfectly elastic, what is the velocity of each ball immediately after the collision?

A. -3.3 m/s, +6.7 m/s B. +3.3 m/s, -6.7 m/s C. -6.7 m/s, +3.3 m/s D. +6.7 m/s, -3.3 m/s

Physics & Space Science

What mechanism is most responsible for generating the internal heat of Io that drives the volcanic activity?

A) accretion B) radioactive decay C) differentiation D) tidal heating E) bombardment

Physics & Space Science

A venturi tube may be used as the inlet to an automobile carburetor. If the 2.0-cm diameter pipe narrows to a 1.0-cm diameter, what is the pressure drop in the constricted section for an airflow of 3.0 m/s in the 2.0-cm section? (? = 1.2 kg/m3.)

a. 70 Pa b. 85 Pa c. 100 Pa d. 120 Pa e. 81 Pa

Physics & Space Science