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  1. When the angle of refraction is 20 degrees what is the angle of ...

    2024年5月22日 · To find the angle of incidence when the angle of refraction is 20 degrees, you can use the formula for Snell's Law: n1 sin(θ1) = n2 sin(θ2). Given that n1 and n2 are the refractive indices of ...

  2. What is the angle of reflection 20 degrees from the surface

    2024年5月31日 · When the angle of refraction is 20 degrees what is the angle of incidence? To find the angle of incidence when the angle of refraction is 20 degrees, you can use the formula for Snell's Law: n1 ...

  3. How much fall in a 1 degree roof over 1 metre? - Answers

    2024年11月28日 · The amount of fall in a 1-degree roof over 1 meter can be calculated using trigonometry. Since the tangent of 1 degree is approximately 0.0175, the fall over 1 meter would be 0.0175 meters, or 1. ...

  4. What is the pressure of a AC unit on a 90 degree day? - Answers

    2024年5月28日 · 90 degree comes to poles.there is no living habitate in 90 degree N and 90 degree East What is the unit of measure for an angle? Arc degrees, minutes and seconds are the units of angular measurement.

  5. What is the pull back angle? - Answers

    2023年9月27日 · If an angle measure 270 degrees what kind of angle is it? That's a reflex angle. 0 to <90 Acute angle 90 Right angle >90 to <180 Obtuse angle 180 Straight angle >180 to <360 Reflex ...

  6. John loads a collapsed inflatable boat into a two-wheel ... - Answers

    2022年10月21日 · the answer will be (c) . the cart will be easier to pull, in spite of the weight of the board, because now the angle of pull is much closer to the angle of movement.

  7. What does a ninety degree angle look like? - Answers

    A ninety degree angle looks like the corner of a piece of paper. Straight up on one side and straight across on the bottom. A straight line is 180 degrees, so half of that (where the vertical line ...

  8. What occurs when the earth moon and sun are at a 90 degree …

    2024年6月26日 · A half moon occurs when the moon is at a 90-degree angle to the sun, with half of its illuminated side facing Earth. Quarter moons occur when the moon is at a 90-degree angle to the sun, with a ...

  9. A shotputter throws the shot with an initial speed of 15.5 ms

    2024年5月21日 · -- The shot leaves his hand at 15.5 m/s directed 34 degrees above the horizon. The horizontal component of its velocity is 15.5 cos(34) = about 12.85 m/s.. The vertical component of its velocity ...

  10. What does 20 Celsius mean? - Answers

    2024年6月12日 · 20 degrees Celsius is a temperature or a temperature range on the Celsius scale, where 0 is the freezing point of water and 100 is the boiling point of water. If the air temperature is 20 degrees ...