The specific heat of an object is:
a. its heat capacity divided by its mass.
b. its mass divided by its heat capacity.
c. the same as its heat capacity.
d. its heat capacity multiplied by its mass.
e. its temperature multiplied by the atmospheric pressure.
a
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Derive an equation of the form hc = f(T, D, U) for turbulent flow of water through a long tube in the temperature range between 20° and 100°C.
GIVEN
• Turbulent water flow through a long tube
• Water temperature range (Tb) = 20°C to 100°C FIND
• An expression of the form h c= f(T, D, U)
ASSUMPTIONS
• Steady state
• Variation of properties with temperature can be approximated with a power law
• Fully developed flow
• Water is being heated
SKETCH
PROPERTIES AND CONSTANTS
for water
Assume we can determine the position of a particle within an uncertainty of 0.5 nm. What will be the resulting uncertainty in the particle's momentum (in kg × m/s)?
a. 1.9 × 10^-25 b. 4.2 × 10^-25 c. 1.1 × 10^-25 d. 1.3 × 10^-24 e. 6.6 × 10^-25
A light ray in air strikes a glass surface with an angle of incidence of 
The angle of refraction in the glass is 
What is the speed of light in the glass?
A. 
B. 
C. 
D. 
E. 
A block of mass m is projected across a horizontal surface with an initial speed v. It slides until it stops due to the friction force between the block and the surface. The same block is now projected across the horizontal surface with an initial speed v/2. When the block has come to rest, how does the distance from the projection point compare to that in the first case?
1.It is the same. 2.It is half as large. 3.It is one fourth as large. 4.It is none of these.