04/19/17
Quadratic & Exponential Functions
An object is launched at 17.2 m/s from a 25-meter tall platform. The equation for the object's height h at time t seconds after launch is: h(t) = -4.9t^2 + 17.2t +25, where h is in meters. a. Graph...
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04/19/17
The moon is a sphere with radius of 92 km. Determine an equation for the ellipse if the distance of the satellite from the surface varies from 206 km to 943 km.
A satellite is to be put into an elliptical orbit around a moon. The moon is a sphere with radius of 92 km. Determine an equation for the ellipse if the distance of the satellite from the surface...
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04/19/17
Physics question
I have a test for Physics tomorrow, and I was working on some practice problems, but I don't understand this question. I was wondering if someone could show me how to work it out?...
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04/18/17
An electron traveling at 5.3×105 m/s has an uncertainty in its velocity of 2.17×105 m/s .
What is the uncertainty in its position?
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04/18/17
What is the concentration of H3O+ in a solution with the following pH values. Enter your answer in scientific notation.
a. 4.33 b. 5.48 c. 4.78 d. 5.79
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04/18/17
Keep supporting sources for essay or remove them because my teacher said they were not part of the book he wanted me to cite?
do not have the excerpt for the book and my paper was written on the full book and i was told to write it on the excerpt and i do not know if its better to leave the sources or not
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04/18/17
Physics Help. Find percent of k lost for inelastic collision.
Useful for problem:
Ki > Kf (loses energy due to collision) Ki = 0.5m1v1i^2 + 0.5m2v2i^2
Kf = 0.5(m1 + m2)vf^2
v1i is initial velocity of m1.
v2i is initial velocity of m2.
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04/18/17
quasars and distances
What is the minimum size of a quasar that shows variations in brightness over a period of 36 hours? Express your answer in kilometers.
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04/17/17
After Eddie has taken 5 steps, what fraction of the line is behind him? What fraction of the line is still in front?
"Higher Order Thinking"
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04/17/17
Lagrange interpolating polynomials help?
Determine the linear Lagrange interpolating polynomial that passes through the points (2,4) and (5,1). Please explain all steps so I can understand how you got your answer.
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04/17/17
Physics help. A bullet is launched horizontally at a speed Vb. It hits and goes through a block hanging on a wire from the roof of some place.
The same block moves up h meters. What is Vb in terms of given symbols? Use g, not 9.8 N/kg.
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04/17/17
What is the minimum size of a quasar that shows variations in brightness over a period of 36 hours?
Express your answer in kilometers.
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04/17/17
gauss law problem
An infinite line of charge with linear density λ1 = 7.4 μC/m is positioned along the axis of a thick insulating shell of inner radius a = 2.8 cm and outer radius b = 4.2 cm. The insulating shell is...
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04/17/17
4 root of x^2-8=2
what is the 4 root of x squared minus 8 equals 2
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04/17/17
Express the function, f, in simplified form. Assume that x can be any real number.
f(x)=√100(x+3)^2
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04/17/17
finding the difference between the temperature
You have to find the difference between the act air temperature and how cold it feels
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04/17/17
(2 sqrt (-25) (3 sqrt (-4) #solve the equations.
(2 sqrt (-25) (3 sqrt (-4) #solve the equations.
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04/17/17
Three consecutive integers such that two times the second is 6 more than three times the third
Three consecutive integers such that two times the second is 6 more then three times the third
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04/17/17
When meteors appear in a close time frame in the same part of the sky, they are collectively referred to as meteoric dust.
I don't know if this is true or false. Please help
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04/16/17
Algebra help
evaluate the expression 4y2-2x /7+2y for x=7 and y=2
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04/16/17
Is he correct?
a tutor earns d dollars per hour. He will be increasing his hourly wage by 10% starting next month. He tells one of his clients that his new wage can be determined by multiplying his previous wage...
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