What is meant by the term dimensionally homogeneous?
What will be an ideal response?
The term, using in similitude or dimensional analysis describes that the various
units or dimensions need to be compatible or the same.
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When wind encounters a wind turbine that produces energy, wind speed on the downside of the blades is
A) slowed. B) speeded up. C) not affected.
If the speed of a car is tripled, the impulse required to stop the car changes by a factor of
A. 3. B. 1/3. C. 1. D. 9. E. 1/9.
A kid slides down an icy (frictionless) hill starting from rest. At the top his gravitational potential energy is 500 J.His kinetic energy at the top of the hill is
a. 0 J. b. 500 J. c. some value between 0 and 500 J. d. none of the above.
Dielectrics: A parallel-plate capacitor consists of two parallel, square plates having dimensions 1.0 cm by 1.0 cm. The plates are separated by 1.0 mm, and the space between them is filled with Teflon, which has a dielectric constant of 2.1. What is the capacitance of this capacitor? (?0 = 8.85 × 10-12 C2/N ? m2)
A. 1.9 pF B. 0.44 pF C. 2.1 pF D. 0.88 pF