AU is the distance from the earth to the sun, and solar mass represents a measurement equal to the mass of our sun.
The units applied in astronomy is quite different from the units applied in daily life. The unit called astronomical units (AU) describes the distance from the earth to the sun. The unit solar mass represents the mass of the sun and is taken to be equal to 1.989 x 10^30 kilograms.
Therefore, the difference between the AU and solar mass is that; AU is the distance from the earth to the sun, and solar mass represents a measurement equal to the mass of our sun.
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The spring has been extended for 3.5 m
<u>Explanation:</u>
We have the formula,
PE =1/2 K X²
Rewrite the equation as
PE=1/2 K d²
multiply both the sides by 2/K to simplify the equation
2/k . PE= 1/2 K d² . 2/K
√d²=√2PE/K
Cancelling the root value and now we have,
d=√2PE/k
d=√2×98 J / 16N/m
d=√12.25
d=3.5 m
The spring has been extended for 3.5 m
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Answer:
The velocity at discharge is 100.46 ft/s
Explanation:
Given that,
Pressure = 68 psi
We need to calculate the pressure in pascal
We need to calculate the velocity
Let the velocity is v.
Using Bernoulli equation
Now, We will convert m/s to ft/s
Hence, The velocity at discharge is 100.46 ft/s
Answer:
about 10 milliamperes
Explanation:
currents above 10ma can paralize or "freeze bodies"
The correct answer is D.
The instantaneous velocity of a body is given by the gradient of the tangent drawn to the point in the position- time graph.
The tangents drawn to points A and B slopes upwards and thus have a positive gradient, showing that the particle has velocity in the positive direction.
The tangent drawn to point E slopes down wards and hence its gradient is negative. The velocity of the particle is also finite at E, but in opposite direction to that at A and B.
However, point D lies at the top of the peak in the position- time graph. A tangent drawn to the point D is flat and parallel to the time axis. The gradient of the tangent is zero, implying that the velocity of the [article at D is zero.
Thus, from the position- time graph, it can be seen that the velocity of the article at D is zero.