The number of electrons per second ejected from a metal in the photoelectric effect
A. is proportional to the threshold frequency of the metal.
B. is proportional to the intensity of the incident light.
C. is proportional to the wavelength of the incident light.
D. is proportional to the frequency of the incident light.
B. is proportional to the intensity of the incident light.
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Predict the yield strength of the titanium in Figure 7.9 with 4 % pre-strain if the grain size is reduced to 100 nm.
What will be an ideal response?
How many significant figures are in 0.0067?
A) 1 B) 2 C) 3 D) 4 E) 5
In ionic bonding, electrons are transferred from an atom with its valence shell less than half filled to an atom with the valence shell ______________than half filled.
Fill in the blank(s) with the appropriate word(s).
A steel rod 55 cm long has a diameter of 30 cm. The compressive strength (the maximum stress it can support without breaking) of this steel is 500 × 106 N/m2. What is the compression force that would break the rod?
A) 3.5 × 107 N B) 2.4 × 107 N C) 1.4 × 108 N D) 4.7 × 108 N E) 8.9 × 108 N