The slope of a tangent line at a given time value on a position versus time graph gives
A) instantaneous velocity.
B) average velocity.
C) instantaneous acceleration.
D) average acceleration
E) none of the given answers.
A
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A capacitor C is connected in series with a resistor R across a battery and an open switch. If a second capacitor of capacitance 2C is connected in series to the first, the time constant of the new RC circuit will be
A) the same as before. B) larger than before. C) smaller than before. D) variable.
Solve the set of difference equations derived in Problem 4.52 given the following values of the problem parameters
k = 40.0 W/(mK), disk thermal conductivity a = 1 ? 10–5 m2/s, disk thermal diffusivity Rs = 25 mm, disk radius Zs = 5 mm, disk thickness q" max = 3 x 106 W/m2, peak absorbed flux Ro = 50 mm, parameter in flux distribution Tinit = 20°C, disk initial temperature Determine the temperature distribution in the disk when the maximum temperature is 300°C. GIVEN - Difference equations developed in Problem 4.52 given the following values of the problem parameters FIND (a) Disk temperature distribution when the maximum temperature is 300°C
Luminosity class IV objects are known as ____________________
Fill in the blank(s) with correct word
A fish's eye is well-suited to seeing under water, but what can you say about his vision if he is taken out of water?
A) His acuity (sharpness of vision) would be greater. B) He would suffer from astigmatism. C) He would be nearsighted. D) He would be farsighted. E) His vision would be limited to a cone of half-angle of about 49°.