Questions and answers by

maura

Questions (28)

Need quick help with this question.Is electric force directly proportional to 1/r or 1/r^2?
1. 2 answers
2. 525 views
Find maxima and minima and points of inflection.f(x) = 2x^3 - 3x^2 -36x +100 on the interval [-6,4]
1. 1 answer
2. 493 views
two tables containing electron impact mass spectra data are shown. select the molecule that corresponds to the appropriate
1. 0 answers
2. 782 views
Predict the first order splitting patterns of the indicated proton in the following molecules:CH3CH2CH3 (the H in CH2 is
1. 1 answer
2. 399 views
draw all possible z isomers for an alkene with the formula C4H7Br.im having some difficulty, please help
1. 1 answer
2. 749 views
A bat moving at 6.5 m/s is chasing a ﬂyinginsect. The bat emits a 37 kHz chirp and receives back an echo at 37.65 kHz. At what
1. 1 answer
2. 888 views
Question 4A 0.9 kg block attached to a spring of force constant 2.1 N/m oscillates with an amplitude of 9 cm. A)Find the maximum
1. 3 answers
2. 1,261 views
Three particles of masses 14 kg, 21 kg,and 69 kg are located at the vertices of an equilateral triangle of sides 7 m. A)Find the
1. 1 answer
2. 595 views
a blue box have 5 times as many marbles as a red box. the blue box has 24 more marbles than a red box. how many marbles are in
1. 1 answer
2. 283 views
Differentiate the function.y = (Square root x)(x − 10)
1. 2 answers
2. 552 views
Differentiate the function.g(x)= x^2(1-2x) g'(x)= i tried doing 2x(1-2x) 2x-4x^2
1. 3 answers
2. 536 views
An object is dropped from a height H above the ground. This free-falling object requires 0.904 s to travel the last 34 m before
1. 2 answers
2. 934 views
An object is dropped from a height H above the ground. This free-falling object requires 0.904 s to travel the last 34 m before
1. 1 answer
2. 1,018 views
To find the equation of a line, we need the slope of the line and a point on the line.Since we are requested to find the
1. 7 answers
2. 1,570 views
This problem has two parts but I can only see this so far. I probably over thinking..what is this asking for? How do I answer
1. 4 answers
2. 488 views
find the limit.lim (5-e^x)/(5+3e^x) (x-> infinity) how would i go about solving this? thank you in advance to anyone who can
1. 3 answers
2. 492 views
A hot air balloon is traveling vertically upward at a constant speed of 5.3 m/s. When it is 25 m above the ground, a package is
1. 0 answers
2. 502 views
Suppose x=4sin(theta, for theta (-pie/2, pie/2). Rewrite(sqrt16-x^2)^3/x^3(Sorry Im not very good at making symbols. I hope you
1. 2 answers
2. 453 views
I am giving a titration curve of a weak base and strong acid. The pH on the y scale is from 0-14 and the volume of titrant in mL
1. 3 answers
2. 1,188 views
pH of HF5.3*10^-2 M Since HF is a weak acid, I'm not sure which formula to use.
1. 5 answers
2. 463 views
I keep getting wrong answers for this question.Determine the pH of an HF solution of each of the following concentrations. a)
1. 4 answers
2. 2,071 views
Hi, so I did a lab on acids, bases, salts and buffer solutions. After measuring the pH for a .010 M HCl solution I got a pH of
1. 2 answers
2. 852 views
Kp=1.6Kp=1.0*10^-4 A<->2B Find the equilibrium partial pressures of A and B B=1.0 atm A=0.0 atm This is what I have so far A 2B
1. 0 answers
2. 393 views
Kp=1.6Kp=1.0*10^-4 A<->2B Find the equilibrium partial pressures of A and B B=1.0 atm A=0.0 atm This is what I have so far A 2B
1. 6 answers
2. 1,281 views
Ammonium bisulfide, NH2HS, forms ammonia NH3, and hydrogen sulfide, H2S through the reaction:NH4HS (s) <--> NH3(g) + H2S(g) Kp
1. 13 answers
2. 3,540 views
whats x+2+2x=x+10?
1. 5 answers
2. 443 views
how many different types of walnut trees are there and what do they look like?
1. 1 answer
2. 402 views
There are 27 pigs. The farmer needs to get them into four pens. But all the pens have to have an odd number of pigs. Zero
1. 5 answers
2. 4,214 views