The hatchet "angular size" is supplied to explain the evident size the the objects in the night sky.

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The angular distance is identified as the angle v which an item moves ~ above a one path. The SI unit is radian.

Other units are change (rev) and also degrees.

In explain 1, angular distance is measured in meters which is incorrect. In other options, there is no factual mistake therefore they space correct.

Let"s discuss them,

Statement 2:

Here, we are talking around the use of outstretched hand to estimate the angular distances and sizes which is correct.

Statement 3:

This declare talks around the exact same angular size of the sun and also the moon, right here the term is again provided correctly.

Statement 4:

Here, the angular distance is measure in the correct systems i.e, levels so this explain is also correct.



Answer from: Quest

its c i just checked it



Answer from: Quest

electromagnetic shielding is the practice of reduce the electromagnetic field in a an are by prevent the ar with obstacles made the conductive or magnetic materials. Shielding is typically applied to enclosures to isolate electrical tools from their surroundings, and to cables to isolation wires native the atmosphere through i m sorry the cable runs. Electromagnetic shielding that blocks radio frequency electromagnetic radiation is additionally known together rf shielding.

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the shielding have the right to reduce the coupling of radio waves, electromagnetic fields and also electrostatic fields. A conductive enclosure provided to block electrostatic areas is additionally known together a faraday cage. The quantity of reduction depends really much upon the material used, its thickness, the dimension of the shielded volume and the frequency of the areas of interest and also the size, shape and orientation that apertures in a shield to an event electromagnetic

from wikipedia


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Very huge accelerations can injure the body, especially if they last for a substantial length that time. One design used come gauge the likelihood that injury is the severity table of contents ( ), defined as =/ . In the expression, is the term of the accleration, but is not equal to the acceleration. Rather, is a dimensionless constant that = the variety of multiples of the the acceleration is same to.in one set of researches of rear-end collisions, a person"s velocity rises by 13.7 km/h with an acceleration the 36.0 m/s2 . Permit the + direction allude in the direction the vehicle is traveling. What is the severity index for the collision?
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At an extremely high pressures, gases become and also will at some point a) more dense; become hotter b) much more dense; adjust to a liquid or hard c) much less dense; combust d) less dense; turn into a liquid
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Photoelectrons with a maximum speed of 6.50 x 107 m/s room ejected native a surface in the presence of light with a frequency that 6.75 x 1014hz. If the mass of one electron is 9.10 x 10-31 kg, calculation in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
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The law of the conservation of momentum claims that the complete momentum of any closed and also isolated system cannot
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Which that the following statements walk not usage the term angular size or angular distance correctly?...