X-rays are high energy electrons
that can cause damage when exposed under extreme conditions. The best technology
that can block it is using a lightweight type of metal foam. It can take in
high energy collisions which also exhibits high forces. it does not only block
x-rays but also, neutron radiation and gamma rays.
this chemical equation represents a <em>chemical</em> reaction
Answer:
Explanation:
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<u>According </u><u>to </u><u>Newton,</u><u> </u><u>the </u><u>bodies </u><u>in </u><u>the </u><u>universe </u><u>attract </u><u>each </u><u>other.</u><u> </u><u>This </u><u>force </u><u>if </u><u>attraction</u><u> </u><u>is </u><u>called </u><u>force </u><u>of </u><u>gravitation</u><u>.</u><u> </u> For example, the earth attracts the moon and the moon attracts the earth too. Similarly, the earth attracts the Jupiter and the Jupiter attracts the Earth.
The effect of force of attraction of a big body on a small body can be observed but that of a small body on a big one cannot be observed. The sun is so large that even the sum of the masses of all its planets and the satellites is only about 0.0015th part of mass of the sun. Due to the gravitational force between the sun and the earth, the earth keeps on moving around the sun. Similarly, the gravitational force between the satellites and planets makes the satellites to revolve around the planets. So, The gravitational force is responsible for the existence of solar system. The effect of gravitation can be experienced more on liquid than solid. Hence, we see tides in the sea and ocean due to the force of gravitation of the moon and the sun on the earth when they lie on the same straight line.
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The angle of incidence, when there is perfect transmission is the polarization angle. The expression for the polarization is
Where
= Polarization angle
= Angle with the vertical axis
We have that the angle is
The ratio of the intensities depends on the cosine of the polarization angle. The polarization angle found from the wearer’s leaning angle can be used to find the fraction of the reflected ray intensity that will pass through the sunglasses.
Applying the Malus Law we have that
Here,
= Final intensity
= Initial intensity
Replacing we have,
Therefore the fraction of the reflected light intensity which passes through the sunglasses is 0.11
Answer:
<em>Yes, work has been done on the mud.</em>
<em></em>
Explanation:
Work is done on a body, when a force is applied on the body to move it through a certain distance. In the case of the mud, the tire exerts a centripetal force on the mud. The centripetal force moves the mud along a path that follows the circle formed by the tire in one revolution of the tire. The total distance traveled is the circumference of the circle formed. <em>The work done on the mud is therefore the product of the centripetal force on the mud from the tire, and the circumference of the circle formed by the tire, usually expressed in radian.</em>