A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/h in 6.00 s. What distance will the sports car travel during the 6.00-s acceleration period? (Hint: First convert speed to m/s.)
a. 41.7 m
b. 58.3 m
c. 83.3 m
d. 167 m
e. 125 m
c
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Beats: Two taut strings of identical mass per unit length are stretched with the same tension with their ends fixed, but one string is 0.330 cm longer than the other. Waves on these strings propagate at 34.0 m/s.The fundamental frequency of the shorter string is 258 Hz. What is the beat frequency when each string is vibrating at its fundamental frequency?
A. 12.3 Hz B. 9.00 Hz C. 12.0 Hz D. 12.7 Hz E. 11.3 Hz
A meniscus lens is made with the radius of curvature of the convex surface being 25.0 cm and the concave surface 45.0 cm. If the glass used has index of refraction 1.50, what is the focal length of this lens?
A) -32 cm B) 32 cm C) 113 cm D) 67.5 cm E) -113 cm
Estimate the maximum heat flux obtainable with nucleate pool boiling on a clean surface for (a) water at 100 kPa on brass, (b) water at 1 MPa on brass.
GIVEN
? Nucleate pool boiling on a clean surface
FIND
? The maximum heat flux obtainable for
(a) water at 1 atm on brass; and
(b) water at 10 atm on brass
ASSUMPTIONS
? Water is at saturation temperature
PROPERTIES AND CONSTANTS
From Appendix 2, Table 13, for water from Table 9.2 for surface tension
In kinetic theory, a gas is modeled as being made up of a large number of molecules which bounce from the walls of the container
Indicate whether the statement is true or false