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rjkz [21]
3 years ago
15

Using your knowledge on personal care products, how does sunscreen

Physics
1 answer:
cricket20 [7]3 years ago
6 0

Answer:

Ultraviolet rays from sun are very harmful from skin and can cause sunburn and skin diseases especially ultraviolet B rays.<em> A sunscreen  lotion act as a protection barrier on the skin that restrict the direct contact of UV rays with skin and filter the harmful rays to enter the skin. </em>

Radiotherapy is a medical therapy use to treat cancer. <em>Radiotherapy commonly uses x-rays and gamma rays because they are high-energy particles or waves that kills or destroys the cancer cells.</em>

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A cardboard box has four forces acting upon it, as shown in the diagram below. What is the magnitude of the unknown force, Funkn
AlekseyPX

Answer:

D)  11 N

Explanation:

F = mg

In the vertical

30 = m(9.8)

m = 3.06 kg

in the horizontal

F = ma

F(unknown) - 5 = 3.06(2.0)

F(unknown) = 11.12... N

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