The system of two rods will lie on the table as show in the figure
The center of first rod will lie exactly at the edge of first rod and then the center of mass of two combined rods will lie at the edge of the table.
So now the whole system will rest on the rod and it will not tipping off.
Since both rods are identical so we can say that the system will have its center of mass at the mid point on the line joining the two centers
So the value of x will be at mid point of line joining the two points on rod
So total length over the edge will be given as
Answer:
A. 5521.86 secs
B. 7680.65 m/s
Explanation:
Parameters given:
Radius of orbit of the space station, R = 6380000 + 370000 = 6750000 m
Mass of earth = 5.97 * 10^24 kg
Gravitational constant, G = 6.67 * 10^(-11) Nm²/kg²
A. Orbital period, T, can be obtained using the formula:
T²/R³ = (4 * pi²) / (G * M)
T²/(6750000³) = (4 * 3.142²) / (6.67 * 10^(-11) * 5.97 * 10^24)
T² = (4 * 3.142² * 6750000³) / (6.67 * 10^(-11) * 5.97 * 10^24)
T² = 30490944.39
T = 5521.86 secs
B. Orbital velocity, v, can be obtained by using the formula:
v² = (G * M) / R
v² = (6.67 * 10^(-11) * 5.97 * 10^(-24)) / 6750000
v² = 58992384
v = 7680.65 m/s
The correct options are B and C
Let us assume the amplitude of the two sinusoidal waves be A1 and A2
As it is mentioned that the waves are identical, therefore A1=A2= a
The resultant wave of any two waves is given by the formula:
Resultant wave=
where A1 and A2 are amplitudes of waves 1 and 2 and is the angle between the waves
Now as per the formula, it is the the factor 2cos that will decide that amplitude is greater than original or not
Hence we know that maximum value of cos is when is 0 degrees
Now it is known that value of cos varies from 1 to 0 for o degrees to π/2
and the value varies from 0 to -1 for angles π/2 to π
Case 1: when =0 degree
Resultant wave R =
Case 2: When is less than 90
let us consider
Resultant wave R =
case 3:
When is less than 120
case 4: when is less than 180 degrees
the value will be 0
Hence only option b and d are correct
For further reference:
brainly.com/question/14286615?referrer=searchResults
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