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weather radar is a great help to pilots in detecting thunderstorms. however, pilots must
be aware that radar does not reliably detect hail. radar operates by transmitting a pulse
of radio energy and receiving the pulse again after it is reflected by a target. large
raindrops, the kind found in intense thunderstorms, are the best radar reflectors and will
show up as intense targets on the screen. hail is somewhat porous and has an uneven
structure; it tends to absorb or scatter the radar pulse rather than reflect it back to the
antenna. according to the paragraph, weather radar does not reliably. detect hail
because of - answer its penetrable surface
according to mark twain, october is a particularly dangerous month to speculate in
stocks. others include july, january, september, april, november, may, march,june,
december, august, and february. what was mark twain's point? - answer october is an
especially bad month for speculating in stocks
Physical sound energy is transmitted through the external ear ( the pinna ) and the
middle ear to the inner ear, where it creates pressure waves in the fluid of the cochlea.
there, hairs on the organ of corti are moved by the pressure waves. the movement of
the hairs starts the process by which nerve impulses are generated. where is the organ
of corti located? - answer in the inner ear
An analysis of the mandatory oil quota program shows that separate quotas were
established for crude oil and for petroleum products. Petroleum products were divided
into light products mostly gasoline jet fuel and desolate and heavy or residual fuel oil
products. The quota for crude oil imports was set at approximately 10% of crude oil
consumption the passage implies which of the following about the oil quota program? -
answer the quota for residual fuel oil products was the same as for crude oil products
the women's flying training detachment was the brainchild of jacqueline cochran, the
famous flyer. because of the overwhelming demand for qualified men to fly in combat
during world war 2, she was able to persuade the army to train women pilots to ferry
military aircraft from manufractures to embarkation points for later shipment overseas.
the author implies that the primary motivation for establishing a training program for
women pilots during world war 2 was the - answer unavailability of qualified male pilots
4x+12=0 - answer -3
what is 5x times (3x^2-5)? - answer 15x^3-25x
what is the area of a parallelogram if its length is x+4 and its height is x+3? - answer
x^2+7x+12
, Simplify 3/5x+x - answer 8/5x
Graphs of the following equations are straight lines except? - answer y=x^2+3
the hypotnuse of a right triangle has a length of 14 units and a side that is 9 units long.
which equation can be used to find the length of the remaining side? - answer
x^2=14^2+9^2
the factors of 2x^2+xy-3y^2 are - answer (2x+3y)(x-y)
what is the area of a triangle with a base of 8 feet and a height of 4 feet? - answer 16
square feet
the reciprocal of 3-1/5 is - answer 5/16
If 4/3x3/4=5k, then k=? - answer 1/5
what does the abbreviation AC stand for? - answer alternating current
in making permanent electronic connections, use - answer soldering iron
When current flow is interrupted by a blown fuse, the circuit becomes? - answer open
a standard multimeter does NOT measure - answer frequency
this is a symbol for a - answer transformer
utility company power lines carry what kind of current? - answer alternating
when measuring resistance with an ohmmeter, - answer Disconnect power
in this schematic, the total resistance is - answer 100ohms
electrical current flowing from one component to the next is an example of what kind of
circuit? - answer
open
When wire conductors are coated with solder, the process is called? - answer tinning
in order to make an electric current flow, it is necessary to have - answer an ammeter