Answer:
D. 90km/hr due West
Explanation:
Given parameters:
Displacement = 1215km
Time = 13.5hr
Unknown:
Velocity = ?
Solution:
Velocity is the displacement divided by the time taken;
Velocity = 
= 
= 90km/hr
Velocity is 90km/hr due West
Answer:
Hope this helps =)
Explanation:
The current in a short circuit may be very high because the resistance in the short circuit is probably less than the resistance in the original circuit.
100 Joules have been used to roll the object up the ramp, but only 90 Joules were actually needed to lift the object, this means that 10 Joules have been wasted in the form of heat due to the friction between the object and the ramp, and this corresponds to
so, 10 % of the energy.
The frequency of the wave is approximately 25/π Hertz
<h3>Wave function</h3>
The standard wave function is expressed according to the equation
y = Asin(2πft+2πx/λ)
where
λ is the wave length
Given the equation below
y=0.15 sin (0.80x - 50t)
Since 50 = 2πf
For the frequency
2πf = 50
f = 50/2π
f = 25/π Hertz
Hence the frequency of the wave is approximately 25/π Hertz
Learn more on speed of the wave here: brainly.com/question/25847009
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Answer:
it is a measure of the heat content of fuels or energy sources
Explanation:
