The free body diagram of the bas is shown below:
The torque is given by:
where F is the force and:
is the perpendicular distance between the rotation axis and the line of action of the force, which we called the moment arm. We know that the torque follows the principle of superposition then to find the total torque we need to add the torque each force exert. Before we do this we need to find the correct sign of the torque so we need to remember that if a force makes an object rotate counterclockwise then the torque is positive; otherwise it is negative. In this case Force two will exert a positive torque while the other two forces acting on the bar exert a negative torque.
For force one and the weight the moments arms are 5 m and 2.5 m, respectively. This comes from the fact that the forces are perpendicular to the rod.
For force two the moment arm is given as:
Hence the total torque is given by:
Therefore, the total torque on the bar is -3.9 Nm (this means that the bar will rotate clockwise).
Answer:
Mass of star is 
kg.
Explanation:
The cube of orbital radius is equal to the square of its orbital time period is known as Kepler's law.
.....(1)
Here T is time period, r is orbital radius, G is universal gravitational constant and M is the mass of the star.
According to the problem,
Time period, T = 109 days = 109 x 24 x 60 x 60 s = 9.41 x 10⁶ s
Orbital radius, r = 18 AU = 18 x 1.496 x 10¹¹ m = 2.70 x 10¹² m
Gravitational constant, G = 6.67 x 10⁻¹¹ m³ kg⁻¹ s⁻²
Substitute these values in equation (1).
M = kg
After<span> the </span>hydrogen<span> fuel at the </span>core<span> has been consumed, the </span>star<span> evolves away from the </span>main sequence<span> on the HR diagram. The behavior of a </span>star<span> now depends on </span>its <span>mass, with </span>stars<span> below 0.23 M</span>☉ becoming<span> white dwarfs directly, whereas </span>stars<span> with </span>up<span> to ten solar masses pass through a red giant stage.</span>
Answer:
Working capital is a fundamental accounting concept essential to running a business. Essentially, working capital is a company's current assets minus its current liabilities. Current assets are typically those that are highly liquid, such as cash or inventory
Explanation:
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hope it helped...
Answer: a= 2 m/s²
Explanation: acceleration = change of speed/ time = 20 m/s / 10 s
