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Determinate the resultant velocity of an airplane. An airplane flies due west at a velocity of 645 kilometers per hour (km/h). The wind blows from the north at a velocity of 125 kilometers per hour (km/h). What is the plane's resultant velocity?
A long metal cylinder (initially hollow and uncharged) is placed around a thin metal wire containing a linerar charge density lambda. Derive a formula for Electic field in the hollow portion beween the two conductors dis ...
Explain what is meant by ballasting stating its importance and its limitations in mechanics.
Steady-State Analysis of a Wind Turbine Generator. Determine the steady-state voltage supplied to the lamp of the simple wind turbine generator (Figure 3.28) if the wind speed remains relatively constant. Assume that the ...
A carpet is to be installed in a room of length 9.72 m and width 5.3 m. Find the area of the room retaining the proper number of significant figures.
Why is a solar water heater generally installed with a glasscover on the top to be insulated from the outside air? Compare thesolar energy collecting efficiencies of the solar water heaterswith and without a glass cover, ...
Explain the term memory hierarchy. What are the differences between primary, secondary, and tertiary storage? Give examples of each. Which of these isvolatile, and which are persistent? Why is persistent storage more imp ...
The Great Sandini is a 6O-kg circus performer who is shot from a cannon (actually a spring gun). You don't find many men of his caliber, so you help him design a new gun. This new gun has a very large spring with a very ...
1. Describe the nebular theory and how it accounts for the characteristics of the inner and outer planets and the motions of objects in the solar system 2. Describe the major features of the Sun, including its interior, ...
The roof of a two-story house makes an angle of 29° with the horizontal. A ball rolling down the roof rolls off the edge at a speed of 4.5 m/s. The distance to the ground from that point is 8.2 m. (a) How long is the bal ...
How to calculate the angle of repose from a book falling off a table?
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