Science Help!
A light beam has a frequency of 5 x 1015 Hz. What is its wavelength?
Science
1. A certain radar installation transmits electromagnetic radiation with a wavelength of 2.5 cm. What is the frequency of this radiation? 2. For the radar above, how many seconds will it take for a signal to reach an airplane 15 km away, and return to the radar installation
Calculus
A differentiable function f(x,y) has the property that f(2,2)=2 and fx(2,2)=1 and fy(2,2)=2. Find the equation of the tangent plane at the point on the surface z=f(x,y) where x=2, y=2.
science/math/physics
A shopper pushes a cart 41 m south down one aisle and then turns 90.0° west and moves 28 m. He then makes another 90.0° turn and moves 14 m. (a) What is the largest possible displacement of the shopper? ____m ___° counterclockwise from west
7th grade science Ms. Sue please help if you can
I'm pretty sure 5 is right. I think the answer would be "altitudes". Which isn't a choice.
Algebra 2
Absolute Value Equations Will someone please check to see if I am doing this correct? 1.|7x+2|=10 x= (8/7) or (-12/7) 2.|3x-5|=-1 I got "no solution" because "d" cannot be negative. 3.|x^2-2x-16|=8 x= 6,-4 or x=4,-2 4.|3x-2|=7 x= 3 or (-5/3) 5.|x^2+2x+1|=-4...
Algebra 2
5/(2y+6)+1/(y-2)=3/(y+3)?
Algebra 2
√(x-10)+4=0
Algebra
(2x+3)^(1/2)=4 (5x-5)^(2/3)=16
Algebra 2
[(8x^5)+(10x^4)]-[(4x^3)-(5x)]=0
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