The correct solution for the resultant of the wolf spider is:
R² = 75² + 50²
<h3>Resultant formula</h3>
R² = (Displacement 1)² + (Displacement 2)²
Where
- R is the resultant displcaement
See attach photo for diagram
<h3>Data obatined from the question</h3>
The following data were obtained from the question.
- Displacement 1 = 75 cm west
- Displacement 2 = 50 cm south
- Resultant dispalcement (R) =?
<h3>How to determine the solution for the resultant </h3>
The solution for the resultant displacement of the wolf spider can be obtained as follow:
R² = (Displacement 1)² + (Displacement 2)²
R² = 75² + 50²
Thus, the correct answer to the question is:
R² = 75² + 50²
Learn more about resultant displacement:
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True. Waves are measured in Hz. Wavelength is also measured in metres (m) - it is a length after all. The frequency, f, of a wave is the number of waves passing a point in a certain time. We normally use a time of one second, so this gives frequency the unit hertz (Hz), since one hertz is equal to one wave per second.
Answer: Positive
Explanation:
Are you familiar with differential calculus? In a plot of position vs. time, the velocity at any given moment is the derivative at that point. A derivative is just the slope. For this plot, the slope is x/t.
Looking at t = 1s, the slope is 1/1. This means the velocity is a positive 1m/s at time equal to 1 second
Answer:
Explanation:
The rms voltage = 140/√2 = 140/1.414 = 99 V.
Reactance of inductor = wL = 2 X 3.14 X 100 X 113 X 10⁻³ =70.96 ohm.
Total resistance in terms of vector = 50+70.96j
j is imaginary unit number
Magnitude of this resistance = √ 50² + 70.96² = 86.80 ohm
current in resistance (rms) ( I ) = 99/86.80 = 1.14 A.
Power dissipated in resistor = I² R = 1.14 X 1.14 X 50 = 65 W( approx)
