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Double-glazed windows are usually made of two glass panes with a thin layer of air sealed between the panes.
a. Why do these windows reduce heat loss to a much greater extent than occurs if the double glazing is replaced by a thicker glass instead? Explain.
b. Why does the insulating effect of the double glazing decrease if the two glass panes are too far apart? Explain.
Thermal expansion increases the length of a clock's pendulum by a fractional increase of 4.9×10-5. Under these conditions, how much error in timekeeping accumulates over 1 day
Determine how strong is the electric field (in volts/meter) between two parallel plates 1.00 millimeter. apart if the potential difference between them is 310 Volt
A scuba diver is 32 m below the surface of a lake, where the temperature is 5°C. What is the volume of the bubble right before it breaks the surface
On a banked race track, the smallest circular path on which cars can move has a radius of 119 m, while the largest has a radiusof 173 m, as the drawing illustrates. The height of the outer wallis 10.8 m. Find (a) the smallest and(b) the largest speed..
The plane is landing on a naval aircraft carrier that is 0.80 kilometer long. Find what distance does the plane require to land
at some instant the velocity components of an electron moving between two charged parallel plates are vx ms and vy
A sports car traveling along a straight line increases its speedfrom 19.7 mi/h to 59.7 mi/h. What is the ratio of the final to the initial magnitude of its momentum?
When the boat starts moving upstream, a float was dropped from it. The boat travels 4.2 kms and returns and reaches the float.
For example, let the fitness be a sum of exclusive-ors of pairs of bits; compare the evolving fitnesses with those of the sexual and asexual species with a simple additive fitness function.
What is the possibility of a railgun assisted orbital launch? What am I missing here? Why hasn't this concept received more attention?
Consider the two blocks attached by a mass less rope that is strung over a frictionless and mass less pulley. Evaluate what is the tension in the rope
The diffraction pattern shown in the figure is produced by passing laser light ( = 620 nm) through a single slit and viewing the pattern on a screen 1.84 m behind the slit, What is the width of the slit
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