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lara31 [8.8K]
4 years ago
15

Help please...............

Physics
1 answer:
Slav-nsk [51]4 years ago
3 0
According to the given passage,
Over exposure to UV rays causes skin damage or even cancer.

(If you need further explanation) 
Over exposure to UV rays also causes Sunburn (or erythema); is redness of the skin, which is due to increased blood flow in the skin caused by dilatation of the superficial blood vessels in the dermis. High UV doses may also results in edema, pain, blistering, and peeling of the skin a few days following exposure. Other effects includes Suppression of the Immune System, <span>Damage to the Eyes, etc.</span>
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You travel in a circle, whose circumference is 8kilometers, at an average speed of kilometer/hour. If you stop at the same point
dimaraw [331]

You skipped over a number in the question, and you didn't tell me what my average speed is. Lucky for you, my average speed has NO EFFECT on the answer to the question.

When you calculate velocity, you only use the straight-line distance between the start-point and the end-point. It doesn't matter what route the thing took to get there, or how much ground it actually covered.

If I travel in a circle and stop at the same point I started from, then the size of the circle doesn't matter, and neither does my speed. The distance between my start-point and my end-point is zero, and my average velocity is zero.

3 0
4 years ago
A force of 333 N is applied 33 cm from the pivot point. What is the maximum torque of this situation
exis [7]

Answer: 109.89 Nm

Explanation:

The maximum torque will be calculated as the force multiplied by the perpendicular distance. This will be:

Torque = force × perpendicular distance

torque = 333 × 0.33

= 109.89 Nm

5 0
3 years ago
When a sound source is moving toward the observer, the observer will hear a higher pitch. This is due to
Goryan [66]
Number one a and b are automatically out if you decrease the pitch or frequency you wont hear it louder it does not add up ok?
number 2 the answer would be C the higher the frequency the higher the pitch the lower the frequency the lower the pitch this just comes back to common sense. for example you cant decrease the frequency and than expect a louder pitch its like saying I am going to smash the key on this piano with all my strength and it will make a small very low pitch sound you get what I mean so your answer would indeed be C.
5 0
3 years ago
Read 2 more answers
What is the critical angle and how does it relate to total internal reflection?
liubo4ka [24]

Answer:

critical angle is the angle of incidence in optically denser medium, for which the angle of reflection in the less denser medium is 90 degree

Explanation:

total internal reflection occurs at one particular angle of incidence where the reflected ray lies on the boundary.

this angle is called the critical angle

6 0
3 years ago
Cantaloupe provides the highest level of Vitamin A and when consumed is 10 calories. Which fruit combined with cantaloupe will o
astra-53 [7]
<span>plums, they contain antioxidants and a lot of vitamin C and they're only 30 cals,</span>
8 0
3 years ago
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