Questions LLC
Login
or
Sign Up
Ask a New Question
Zac
Questions and answers by
Zac
Questions (84)
The denominator of a fraction is four more than twice the numerator. If both numerator and denominator are increased by six, the
4 answers
1,502 views
For the alcohol functional group, why is the "H" not acidic and the "OH" not basic?
2 answers
546 views
What were the goals of "The Big Four"?
3 answers
337 views
Why were Wilson's 14 Points not accepted by other members of the paris peace conference?
3 answers
432 views
Please help i would highly appreciate it
4 answers
273 views
Why would people choose an extremist form of government(either ultraliberal or ultraconservative)to rule over them?
1 answer
279 views
If you have a graph with the x-axis as the days of the month, and the y-axis as stock price....
Then, how to do you figure out
1 answer
325 views
What are the products of nitrogen dioxide and methane?
1 answer
300 views
what effect does a catalyst have on..
a) energy of the reactants b) enthalpy change of the reaction
1 answer
468 views
Explain open and closed system with respect to equilibrum.
1 answer
377 views
explain why a strong acid or base can denature an enzyme
explain how varying pH influenced the rate of the catalase reactions and
1 answer
747 views
0.2 in extended form
1 answer
374 views
25 ml HCl x 1L/1000mL x .200HCl/1L = .005 mol HCl.
Using the balanced equation from this, how many moles of NaOh will you need to
2 answers
519 views
According to the rational root theorem, which is not a possible rational root of x3 + 8x2 x 6 = 0?
6 answers
713 views
Factor x3 4x2 3x + 18 = 0, given that 3 is a zero.
5 answers
787 views
Which binomial is a factor of f(x) = x4-27x2-14x + 120?
1 answer
456 views
Which binomial is a factor of f(x) = x4 - 27x2 -14x + 120?
(x-4) (x-2) (x + 5) (x + 6)
4 answers
1,286 views
what events led to u.s. expansion during 1895-1920?
1 answer
406 views
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to
5 answers
1,071 views
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to
2 answers
654 views
A 86.0-kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to
2 answers
612 views
An abiotic factor that starts with c and the clue is soil type. So what is a soil type that starts with C?
2 answers
802 views
How many possible outcomes are there for 15 coins tossed simultaneously?
2 answers
542 views
Express the given quantity in a single logarithm.
ln(a + b) + ln(a - b) - 2 ln c
2 answers
958 views
How long does it take a 23 kW steam engine to do 8.8 x 10^7 J of work?
1 answer
428 views
A hawk flies in a horizontal arc of radius
15.7 m at a constant speed of 3.8 m/s. Find its centripetal acceleration. Answer in
1 answer
732 views
5. Scores on a recent national statistics exam were normally distributed with a mean of 80 and a standard deviation of 6.
a. What
4 answers
3,719 views
50.0mL of 0.01M Ba(OH)2 is added to 150.0mL of 0.01M HNO3. What is the new pH of the solution?
2 answers
757 views
which will become a buffer in 1L of H2O?
a) 0.3 mole KOH & 0.3 mole HBr b) 0.5 mole NH3 & 0.5 mole HCl c) 0.2 mole NaCl & 0.3
2 answers
626 views
0.200 moles of NaF are added to 1L 2.0 molar HF. What is the pH?
a) 2.14 b) 6.70 c) 10.80 d) 3.00 e) 7.00
1 answer
385 views
50.0mL of 0.1 molar NaOH is added with 50.0mL of 0.1 molar CH3COOH. The Ka = 1.8*10^-5. what is the pH of the solution?
a) 7.00
1 answer
431 views
0.200 moles of NaF are added to 1L 2.0 molar HF. The Ka = 7.2*10^-4. What is the pH?
a) 2.14 b) 6.70 c) 10.80 d) 3.00 e) 7.00 I
1 answer
436 views
find all the zeros of each function.
1. f(x)=2x^4-13x^3-34x^2+65x+120 2. f(x)=4x^4+19x^2-63
1 answer
465 views
List all possible rational zeros of each function.
f(x)=4x^5+4x^2-9 Find all rational roots of each function f(x)=2x^3+x^2+8x+4
2 answers
550 views
Seawater has a bulk modulus of 2.34×109 N/m2. Its density at 5°C is 1030 kg/m3. What is the speed of sound through seawater at
2 answers
726 views
Sally Sue is atop a 10.0 m high platform where she will drop an apple straight down. On the ground
below, and 20.0 m
3 answers
588 views
A trough has a trapezoidal cross section with a height of 5 m and horizontal sides of width 2.5 m and 5 m. Assume the length of
3 answers
877 views
An ice skater slides (without pushing) across a frozen pond for 25.0 m before coming to a stop. If the coefficient of kinetic
2 answers
512 views
A box starting from rest, slides down an incline which makes an angle of θ above the horizontal. The incline has a maximum
2 answers
605 views
A 90.0 kg block and a 40.0 kg block are connected by a rope that passes through two (frictionless, massless) pulleys as shown.
2 answers
592 views
A 12.0 kg block sits on a frictionless table. On top of this block is placed a 5.00 kg block. The coefficient of static friction
1 answer
690 views
Mass 1 and mass 2 are connected as shown by a massless, non-stretch rope that passes over a massless, frictionless pulley. The
1 answer
756 views
A block of mass m = 2.00 kg rests on the left edge of a block of mass M = 8.00 kg. The
coefficient of kinetic friction between
5 answers
8,040 views
Consider a spider walking from the top of a (stationary) beach ball. (Let that angular position =
0 O .) The spider finds it
1 answer
442 views
A car with fuzzy dice hanging from the rear view mirror by a single string drives along at a
constant 25.0 m/s. a) If the dice
2 answers
1,126 views
Starting from rest, a 6.70 kg object falls through some liquid and experiences a resistive (drag)
force that is linearly
3 answers
1,173 views
Assume the Earth is a perfect sphere of radius 6,400 kilometers. Find the weight of a 75.0 kg
person at the North pole. Find the
2 answers
528 views
The Hubble Space Telescope (HST) has recorded evidence of a black hole at the center of the M87
galaxy. Using Doppler data, it's
2 answers
480 views
A popular carnival ride consists of a large, round room that rotates fast enough that any person
standing against the wall will
2 answers
648 views
In the Daytona 500 car race in Daytona, FL, a curve in the oval track has a radius of 316 m (near
the top of the curve) and is
2 answers
876 views
A 125 kg flatbottomed boat is floating along at 5.0 m/s, headed east. Sally Sue, standing at one
end of the boat, starts to walk
1 answer
931 views
A 125 kg flatbottomed boat is floating along at 5.0 m/s, headed east. Sally Sue, standing at one
end of the boat, starts to walk
1 answer
411 views
A 140 g, 90.0 mph fastball comes across the plate very nearly horizontally and is batted at 90.0 mph at a 30.0 O angle (above
0 answers
441 views
place parenthesis so answer = 14.
2x2+3 to 2nd power-4+3x5.
1 answer
446 views
Convert r=1+3sin2x from a polar equation to a rectangular equation.
6 answers
683 views
Given the one point function (3,9) (in other words f(3)=9) Identify the following transformations
f(2x) -3(f(x-4))+1 f(5x+3)
1 answer
421 views
Find parametric equations for the line that is perpendicular to the plane 2x-y+3z=7 and intersects the plane when x=1 and y=1.
2 answers
522 views
Find the parametric equations for the line that contains the point (3,1,-4) and is parallel to the line
r(t)=(1+2t)i+(-3-t)j+(5+5
1 answer
445 views
For what values of z will
(2-z)-y = 0 4x+(1+z)y = 0 have an infinite number of solutions.
1 answer
390 views
A point charge of -4.00 is at the origin, and a second point charge of 6.00 is on the axis at = 0.850 . Find the magnitude and
1 answer
648 views
Show that ln(4+x) is the sum of its Taylor Series for -2 <= x <= 2.
1 answer
333 views
integers of 34
Add= Sub.= div.= multiply=
1 answer
321 views
How many sulfate ions are there in 2.500 mL of 5.0 x 10-15 moles of Cr2(SO4)3?
2 answers
552 views
Find the scalar equation of a plane that is perpendicular to plane r=(-2,1,3)+s(0,1,1)+t(-1,0,3) and also intersects it along
2 answers
782 views
State the cartesian equations of two lines that make angle of 60 degrees with the line r=(1,3)+s(1,1)
1 answer
387 views
A and B weigh 156 pounds. A and C weigh 171 pounds. How much do they each weigh if the total weight is 255 pounds?
2 answers
568 views
A skateboarder moving at 7.18 m/s along a horizontal section of a track that is slanted upward by 48.5 ° above the horizontal
1 answer
490 views
Differentiate: y = 3/(1-6x^4)
2 answers
533 views
Determine the freezing point of an aqueous solution containing 10.50 g of magnesium bromide in 200.0 g of water.
3 answers
1,151 views
The sum of two numbers is 83. The difference of the two numbers is 24. Find the two numbers.
1 answer
406 views
The sum of two numbers is 83. The difference of the two numbers is 24. Find the two numbers.
1 answer
400 views
1) Which of the following is a characteristic of RNA splicing in Eurkaryotes?
a) Exon/intron boundaries are typically
1 answer
496 views
A mass hung from a spring stretches the spring by 11 cm when the mass is resting at its equillibrium position. What will be the
3 answers
728 views
What is the maximum velocity of a spring oscillator with a mass of 0.7 kg and a spring constant of 74 N/m that is released from
3 answers
419 views
A simple harmonic oscillator has a frequency of 2.05 Hz. What will be its amplitude of oscillation if it's started from its
3 answers
751 views
With what frequency would you have to push a child on a swing that had supporting chains that were 2.3 m long? Express your
4 answers
1,006 views
A certain pendulum on Earth has a period of 1.6 s. What would be the period of this pendulum if it were taken to another planet
3 answers
924 views
think about the various conflicts in dragonwings. identify and describe one event from the novel that represents a cause and
9 answers
3,570 views
Riddle: It’s 7:00 am. You are asleep and there is a sudden knock on the door. Behind the door are your parents, who came to
59 answers
23,190 views
Help Please!
A spaceship with fuel is initially at rest at point CG. Fuel is ejected at the back to propel the payload to the
1 answer
202 views
Help Please!
Two cars in opposite directions were going at 50 mph before a collision. They had a head on inelastic collision,
1 answer
232 views
So in class we threw an egg into a blanket and it didn't break. What would be the cause? Speed, mass, momentum, or force. It's
1 answer
237 views
Please Help!!!
A cyclotron produces a beam of charged particles useful in medicine. The cyclotron accelerates charged particles
1 answer
223 views
what is the value of 4^ 2 - 2 (3 x 5 -1)?
2 answers
79 views
