A fish looks up at his attacker, an eagle, who is straight above the fish – though the fish lies 15cm beneath the surface of the water and the eagle is 1.5m above the surface. How far above the fish does the eagle appear to be?
A. 2.15m
B. 2.0m
C. 1.65m
D. 1.5m
A. 2.15m
You might also like to view...
A heat engine has an efficiency of 35.0% and its power output is 600 W. What is the rate of heat input?
A. 1.8 kW. B. 2.0 kW. C. 2.4 kW. D. 3.0 kW.
Uncertainty Principle Using Energy and Time: An unstable particle produced in a high-energy collision is measured to have an energy of 483 MeV and an uncertainty in energy of 29 keV. Use the Heisenberg uncertainty principle to estimate the lifetime of this particle. (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19)
Fill in the blank(s) with the appropriate word(s).
An infinite plane of charge with 
is tilted at a 45° angle to the vertical direction as shown below. The potential difference, VA?VB, in volts, between points A and B, a 4.50 m distance apart, is
?
?
A. ?7.06. B. ?9.98. C. ?14.11. D. +7.06. E. +9.98.
In a steam engine, steam at 140°C in a turbine does work on an external system, and the steam leaves the turbine at 100°C. The efficiency of the steam engine is 5%. The relevant physical principle is the first law of thermodynamics
a. True b. False Indicate whether the statement is true or false