02/01/17

Organic compounds are distinguished by molecules that contain ________ bonded to other elements.
oxygen nitrogen hydrogen carbon   oxygen   nitrogen   hydrogen   carbon
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02/01/17

Identify the part of the atom that most determines the chemical properties of the atom.
The number of shells The number of electrons The number of neutrons The number of protons
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02/01/17

In the 400s the Roman Empire was in a golden age. Invaders attacked the empire, trade declined, and to series of weak emperors ruled.
i just want to know is this true or false . if these is false this should be explain why is false and give the answer
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01/31/17

Apply Newton's first law to each of the following situations.
In which situations can you conclude that the object is undergoing a net interaction with one or more other objects? (Select all that apply. 1)A car travels at constant speed around a circular... more
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01/31/17

why did the empower Diocletian pass laws setting price limits
there is a document that comes with it to base your answer off of
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01/31/17

name 3 lines that are not perpendicular to y=5x-2
name 3 lines that are not perpendicular to y=5x-2
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01/31/17

Charges +10.25 uC and +19.75 uC are 4m apart. where should a negative charge be placed in order that the net force on it is zero?
I got an answer - d= 0.346m    i would like professional help and know if it is correct 
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01/31/17

Let A be any mxn matrix and let 0 be the mxn matrix each...( linear algebra)
Let A be any mxn matrix and let 0 be the mxn matrix each of whose entries is zero . Show that if kA=0 , then k=0 or A=0.    I am very lost ! Please help me show this because I think its gonna be... more
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01/30/17

which 2 expressions are equivalent
a.5x-5 and 5(x-5) b.5(x-5) and 5x-25 c.5x-1 and 5(x-5) d.5x(x-1) and 5x-5 please help ASAP
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01/30/17

0.400L of aluminum metal has a mass of 1.08kg. What is the density of aluminum in the units g mL^-1
0.400L of aluminum metal has a mass of 1.08kg. What is the density of aluminum in the units g mL^-1
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01/30/17

The atomic mass of an atom equals the number of protons plus the number of neutrons.
i need to Know if this question is true or false.
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01/29/17

What are some ways astronomers use visible light?
 What are some ways astronomers use visible light part of the electromagnetic spectrum?
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01/29/17

compare the charges and masses of protons, neutrons, and electrons.
Please use small detail for I am a student and need to really understand instead of just putting a super educated answer and me not understanding it and just jotting it down. Thank you for taking... more
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01/29/17

Math question
Determine whether f(x) represents a polynomial function. If possible, identify the degree and type of polynomial function.f(x)=1-8x
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01/29/17

log problem help!!
Log11m^7-33=-20 
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01/29/17

ME = 12mv^2 + mgh
The total mechanical energy of an object with mass mm at height hh in a closed system can be written as ME = 12mv2 + mghME = 12mv^2 + mgh. Solve for v, the velocity of the object, in terms of the... more
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01/27/17

Vector r =6A-2B-3C. How do I subtract this graphically and algebraically??
I really need help with this question. Thank you in advance.
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01/27/17

What is the acceleration during the first 5.6 km of travel?
A train starts from rest and accelerates uniformly, until it has traveled 5.6 km and acquired a velocity of 42 m/s. The train then moves at a constant velocity of 42 m/s for 420 s. The train then... more
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01/27/17

In a representative government
A:The people choose there representative. B:the reprsentactives speak for the people. C:the reprsentactives make the laws for the good of all the people. D:all of the above. E: none of the above.
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01/26/17

What is the wavelength of the electrons emitted by the titanium surface?
Titanium (6.94x10^-19 J) and silicon (7.77x10^-19 J) surfaces are irradiated with UV radiation with a wavelength of 231nm.
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01/26/17

if y=3x^2cos(x) find an expression for the gradient of y
Calculus question trying to find the gradient of y as an expression please
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01/25/17

please show work
what does 1.2p + 0.5 + 0.7p - 0.1 = ?
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01/25/17

Hi I have a question about this problem
The difference between x and five is greater then or equal to one
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01/25/17

What is the relation between Newton's First and Second Law of Motion?
Is Newton's First law a particular case of Newton's Second law? Explain.
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01/25/17

Vector r = <3,-1,4>m(meters). Find theta x, theta y, and theta z.
I am having trouble with this problem.  x,y, and z are subscripts of theta. Thanks in advance.
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