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alessandra
Questions (10)
Which type of energy would the toy have if you pushed it and held the spring in the toy? F) electrical G) kinetic H) potential
0 answers
769 views
can you please change these to radical form without simplifying them?
625^(3/4) 4x^(-1/2) 32y^(-2/5) x^(1/3) - y^(1/3)
4 answers
529 views
let y=2x^2 +5x+3
Find the differential dy when x= 5 and dx = 0.1 Find the differential dy when x= 5 and dx = 0.2
1 answer
426 views
9. a fish is 5.0 ft below the surface of a still pond. At what angle to the vertical must the fish look if it is to see a
0 answers
470 views
8. a light beam enters a piece of window glass (n=1.47) at an incidence angle of 59. Find the angle it makes to the normal as it
1 answer
687 views
7. A drop of oil is placed on a glass block. The glass has an index of refraction of 1.55. When light shines from the glass into
0 answers
634 views
5. A beam of light travels from benzene to water. If the angle of incidence in the benzene is 48, what will be the angle of
0 answers
430 views
2. The speed of light in a certain plastic is 1.88*10^8 m/s. what is the index of refraction of plastic?
1 answer
1,495 views
3. a beam of light enters water from air.(a) if its angle of incidence is 70,what is the angle of refraction ?(b) at what angle
0 answers
1,166 views
4. A beam of light in water enters a plastic block (index of refraction=1.40(a) if the angle of incidence is 40, what is the
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1,152 views
Answers (2)
wait i don't think that's right
magnitude : square root of ( (-2)^2 + 5^2 ) = (4 + 25) = sqrt 29 = 5.38516 angle = 180 + tan^-1(5/-2) = 179.9 = 180 degrees.
