14). c
15). c
16). a little less than d
17). a
18).
-- The parallel combination of 4Ω, 6Ω, and 10Ω is 1.935Ω .
-- The battery sees 1.935Ω in series with 2Ω. That's 3.935Ω .
-- The voltage across the 3 parallel resistors is (1.935/3.935)
of the total battery voltage. That's about 5.9 volts.
-- I = V/R .
The current in the 10Ω resistor is (5.9v/10Ω) = 0.59 Amp. (choice-a)
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space. ... This proved that radio waves were a form of light!
Periodic law states that the physical and chemical properties of the elements recur in a systematic and predictable way when the elements are arranged in order of increasing atomic number.
Hope this helped
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<u>Answer:</u>
Displacement = 100 meter
Distance covered = 180 meter.
<u>Explanation:</u>
Let east represents positive x- axis and north represent positive y - axis. Horizontal component is i and vertical component is j.
Carl runs 100 m West, Displacement = -100 i
He then runs 60 m North, Displacement = 60 j
He then runs 20 m East, Displacement = 20 i
Total displacement of Carl's running = -100 i + 60 j + 20 i = (-80 i + 60 j) m (Vector)
Magnitude of displacement = 
Distance traveled by Carl = 100 + 60 + 20 = 180 m ( Scalar)
Answer: 19 s
Explanation:
The relationship between speed, distance and time is given by:
velocity= distance/time
time= distance/velocity= 323 m/17 m/s= 19 s
