physics
The wavelength of the electromagnetic waves is 200 nm. Which of following regions does it belong to? visible light region ultra violet light infrared region x-ray region
trig
(3 tan^2x-1)(tan^2-3)= 0 can someone please explain how to do this problem and then explain the whole pie thing at the end...like, this is suppose to equal pie/6 b/c it's tan...im soooo confused.....
math
Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures. 885.75 g + 10.151 g - 25.50 g Calculate the value of the following in ex...
Science
C12 H22 O11 = Co2 + H2O how to balance this equation?
algebra
E=jc^2 divide everything by j, so E/J = c^2 take the square root of everything to make C^2 to c so √ E/J = C p.s. √ = square root of
English
i need to find a link to: A "Girl's" Story by David Arnason
physics
At 08:00hrs a 2.0- m-long vertical stick in air casts a shadow 1.8 m long. If the same stick is placed at 08:00hrs in air in a flat bottomed pool of salt water half the height of the stick, how long is the shadow on the floor of the pool? (For this pool, n = 1.56.)
physics
A laser beam enters a .125 m thick glass window at an angle of 39° (from the normal). The index of refraction of the glass is 1.46. At what angle from the normal does the beam travel through the glass? that answer is 25.53 deg the second part asks How long does it take the...
physics
By what length is a light ray displaced after passing through a 4.7 cm thick sheet of material (n=1.38) with an incident angle of theta = 33.5°.
physics
An object whose height is 3.5 cm is at a distance of 8.5 cm from a spherical concave mirror. Its image is real and has a height of 11.2 cm. Calculate the radius of curvature of the mirror. How far from the mirror is it necessary to place the above object in order to have a vir...
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