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Questions (1,014)
You are preparing 500 mL of Denaturation Buffer containing 1.5 M NaCl and 0.5 M NaOH. Your stock solutions are 5 M NaCl and 6 M
0 answers
657 views
The position function x(t) of a particle moving along an x axis is x = 6.00 - 8.00t2, with x in meters and t in seconds. (a) At
1 answer
3,756 views
Problem 3:
Consider water as the substance. (a) Find the specific internal energy (Btu/lbm) when T = 500F and P = 375 psia (b)
1 answer
721 views
if nCr+2*nCr=nCr4+1*nCr-1
1 answer
449 views
A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.6 cm . Its mass is 1.5 kg . Calculate the density
2 answers
732 views
1. If a person jogs at a rate of mi/hr for hr in a week, how many calories will the person burn?
1 answer
527 views
A 9.60 mL sample of 12.0 M HCl is used to prepare 125 mL of diluted acid. A sample of 32.4 mL of Ba(OH)2 base is exactly
1 answer
1,506 views
solve each of the following initial value problems and plot the solutions for serveral variables of ynaught
a)dy/dt = -y+5 I got
1 answer
560 views
last one is $300
1 answer
297 views
From the following data calculate final balance and forward it in the pay stubs.
Beginning balance $2000 Jan 2 Deposit $500 Jan
2 answers
728 views
does anyone know of any reference of gluttony in literature?
thanks!
7 answers
414 views
Calculate the mass of oxygen gas required to
occupy a volume of 6 L at a pressure of 20.9 kPa and a temperature of 37◦C.
3 answers
3,106 views
I have to come up with a product (such as soap, face cream, shampoo, cleaning spray, etc) and make a commercial for it. and I
2 answers
536 views
If
f(x) = 3x^2 − 2x, 0 ≤ x ≤ 3, evaluate the Riemann sum with n = 6, taking the sample points to be right endpoints.
0 answers
1,080 views
We're the sons of liberty justified in their treatment of the loyalists
1 answer
497 views
A boat leaves a dock at 3:00 PM and travels due south at a speed of 20 km/h. Another boat has been heading due east at 15 km/h
1 answer
1,036 views
Jen purchased a condo in Naples Florida for $699,000. She put 20% down and financed the rest at 5% for 35years. What are Jens
2 answers
4,293 views
Factor: X^4 y-y^5
1 answer
321 views
an airplane is flying 120 km south and 130km west of an airport. It is flying at a height of 10 km . what is the straight line
1 answer
715 views
Use the Gram-Schmidt process to transform the basis
1 1 1 , 0 1 1 , 2 4 3 for the Euclidean space R3 into an orthonormal basis
3 answers
683 views
Let W be the subspace of R5 spanned by the vectors w1, w2, w3, w4, w5, where
w1 = 2 −1 1 2 0 , w2 = 1 2 0 1 −2 , w3 = 4 3 1 4
1 answer
2,575 views
The marks of 2376 students in an IB exam are normally distributed with mean 49 marks and variance 225
A) if the mark is 45
2 answers
980 views
Even though I do not believe the Big Bang is what created the universe(although what people clam the bing bang was would have
1 answer
615 views
Use the Gram-Schmidt process to transform the basis
[1 1 1] , [0 1 1] , [2 4 3] for the Euclidean space R3 into an orthonormal
1 answer
637 views
If possible, find a, b, and c so that
v = [a b c] is orthogonal to both w = [1 6 1] and x = [1 −9 1]
3 answers
1,289 views
what useful product can you make using recyclable items?
1 answer
379 views
determine whether the given vector A in M22 belongs to the span (a1,a2,a3) where a1=[1 -1; 0 3]
a2=[1 1; 0 2] a3=[2 2; -1 1] and
0 answers
993 views
If a business is purchased by the issue of 10000 $10 8% debentures trading at $95, how much is the purchase consideration?
I did
1 answer
450 views
When the equation of a line is written in general form, Describe the Slope of the line when A=0 or
and B=0 ? Thanks!
1 answer
597 views
Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that
1 answer
2,187 views
John has $6000 to invest. He invests part of it at 5% and the rest at 8%.How much should be invested at each rate to yield 6% on
2 answers
537 views
At noon, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 30 km/h. How fast is
2 answers
2,373 views
let V be the set of all real-valued continuous functions defined on R1. If f and g are in V, we define f ¨’ g by (f ¨’
0 answers
868 views
how is this not a subspace of R3?
The set of all vectors of the form a b c , where a > 0.
0 answers
423 views
where is the negative space in the rubin case?
1 answer
525 views
Estimate the multiple linear regression equation relating number of cups of coffee per week, female sex, and number of hours of
0 answers
598 views
what is true about red blood cells
1 answer
419 views
formalize the following statment: a_n is a sequence that doesnt converge to L∈R. prove that the sequance (1/n) does not
0 answers
497 views
A video game Is On sale For 30% Off The rehilarious price Of $50. What Is The sale price Of The video game?
2 answers
754 views
Please help me!,how is home economics related to mathematics,science and social,spiritual and moral education (ssme)?
2 answers
791 views
You are wallpapering a 10-foot long wall. The wall is 10 feet high, and without doors and windows. The solid-colored wallpaper
1 answer
627 views
what are two themes that would be appropriate for thematic time lines of important events from prehistory to A.D.1600.
3 answers
4,044 views
An axle of a mass of 10 kg, length 10 cm and radius .1 m is free to rotate about the axis which runs the length of the axle,
1 answer
664 views
evaluate the surface integral
double integral (y dS) z= 2/3 (x^3/2 + y^3/2) 0 ≤ x ≤ 5, 0 ≤ y ≤ 2
2 answers
2,879 views
A 63.8 kg block of silver is at initially at 107 C. 1.0 kg of ice at its freezing point is placed onto the block to cool it. As
2 answers
635 views
A 63.8 kg block of silver is at initially at 107 C. 1.0 kg of ice at its freezing point is placed onto the block to cool it. As
1 answer
594 views
A 63.8 kg block of silver is at initially at 107 C. 1.0 kg of ice at its freezing point is placed onto the block to cool it. As
1 answer
639 views
A 63.8 kg block of silver is at initially at 107 C. 1.0 kg of ice at its freezing point is placed onto the block to cool it. As
2 answers
767 views
How many milliliters of 0.413 M NaC2H3O2 are needed to supply 27.3 g NaC2H3O2?
1 answer
423 views
would someone be able to give me an idea of how to start coding this in C?
You just finished playing cards with a group of
0 answers
713 views
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population
1 answer
669 views
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population
1 answer
662 views
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population
1 answer
840 views
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population
1 answer
686 views
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population
1 answer
772 views
Use Green's Theorem to evaluate
F(x, y) = y cos x − xy sin x, xy + x cos x , C is the triangle from (0, 0) to (0, 4) to (2, 0)
1 answer
1,151 views
Use Green's Theorem to evaluate the line integral along the given positively oriented curve.
integral of xy2 dx + 4x2y dy C is
2 answers
4,432 views
what would the output of this code be?
int startDay = 6; int day = 22; switch(startDay) { case 5: day += 1; case 6: day = day +
0 answers
745 views
how many moles of methane is required to produce g of co2 after the complete combustion ?
1 answer
516 views
What is the eq.wt of C7H6O3 and why ??😊
2 answers
462 views
What is the eq.wt of C7H6O3 and why ??😊
1 answer
380 views
What the eq.wt of C7H6O3 and why?
2 answers
408 views
consider the reaction 2N2O(g) == O2(g)+2N2(g).which of the following will cause a shift in the equilibrium to the left?
1 answer
2,241 views
About how many cases of Elderly abuse are reported?
1) 1of 5 2)1 of 8 3)1 of 10 4)1 of 14
1 answer
422 views
Cassie is a 15 year runaway who is assaulted. Which victimization theory would best apply to her stituation?
1)Victim
1 answer
670 views
how is modern law and government have been influenced by classical Greece and Rome
1 answer
942 views
A 20 g fridge magnet is being held onto the fridge by a 0.9 N force. coefficient of kinetic friction is 0.3 .
a. calculate the
0 answers
892 views
You are the financial planner for Johnson Controls. Assume last year’s profits were $760,000. The board of directors decided
1 answer
1,796 views
calculate the force output by the larger piston of a hydraulic lift when a force of 700 newtons is excerted on the smaller
0 answers
820 views
A golf cart has either 3 or 4 wheels. John checked all 25. How many 3 wheeled how many 4 wheeled
1 answer
493 views
A ball is thrown toward a cliff of height h with a speed of 28m/s and an angle of 60∘ above horizontal. It lands on the edge
0 answers
594 views
A ball is thrown toward a cliff of height h with a speed of 28m/s and an angle of 60∘ above horizontal. It lands on the edge
2 answers
1,625 views
which of the following is consistent with the line spectrum of the hydrogen atom?
one of the choices is the nucleus is udnergoing
1 answer
550 views
Alice ((7.500x10^1) kg) and Bob ((8.5x10^1) kg) are standing at rest on friction free ice. Alice pushes Bob causing Bob to
1 answer
741 views
A (1.35x10^2) kg box is falling near Earth’s surface. It is accelerating at (7.3000x10^0) m/s^2 [D]. What is the force of air
1 answer
530 views
An electron of kinetic energy 50 keV moves in a circular orbit perpendicular to a magnetic field of 0.405 T.
Find the radius of
0 answers
751 views
Andres Michael bought a new boat. He took out a loan for $23,980 at 3.75% interest for 4 years. He made a $4,470 partial payment
1 answer
1,585 views
Andres Michael bought a new boat. He took out a loan for $23,980 at 3.75% interest for 4 years. He made a $4,470 partial payment
1 answer
2,858 views
An astronaut is traveling in a space vehicle moving at 0.520c relative to the Earth. The astronaut measures her pulse rate at
0 answers
926 views
Suppose that f(x) = 1:5x2 for -1 < x < 1 (0 elsewhere). Determine the following
probabilities: (a) P(X > 0) (b) P(X > 0:5) (c)
0 answers
518 views
f(x, y) = 3y cos x, 0 ¡Ü x ¡Ü 2¦Ð
what is the saddle point for this?
1 answer
1,315 views
A cannon is fired horizontally from a platform . The platform rests on a flat, icy, frictionless surface. Just
after the shell is
0 answers
763 views
Consider a sequence of independent Bernoulli trials with p= 0.2
a) what is the expected number of trials to obtain the first
1 answer
1,396 views
an electron in n=5 emits 4052 nm to what energy level does the electron move
4 answers
642 views
In a TV set, an electron beam moves with horizontal velocity of 2.5 × 107 m/s across the cathode ray tube and strikes the
1 answer
850 views
The electron in a ground state H atom absorbs a photon of wavelength 121.57nm, to what energy level does the electron move?
2 answers
1,196 views
if a man moving away with the speed of 0.5 of sound from a stationary sound source producing a sound of frequency , he would
1 answer
709 views
The wave heights h in the open sea depend on the speed v of the wind and the length of time t that the wind has been blowing at
0 answers
1,492 views
a radio uses one-third the number of watts used by lamp, and a heater that uses 15 times as many watts as a lamp. when all are
1 answer
494 views
how to write recursive formula and give one example of one
1 answer
385 views
if 2.19e-9 mol of 176-W emits 1.07e15 beta particles in 1 hour. what is the decay constant?
how do i go about doing this? i know
1 answer
513 views
write two ratios that are equivalent to 1:1
11 answers
4,373 views
what number makes statement true:
30=0.3
1 answer
458 views
1. Use the axioms of probability to show the following:
(a) For any event E, P{Ec} = 1 − P{E}. (b) P{∅} = 0. (c) For any
0 answers
583 views
Consider the vector function given below.
r(t) = 7t, 3 cos t, 3 sin t (a) Find the unit tangent and unit normal vectors T(t) and
1 answer
1,001 views
if 14.66ml of a standard .2616M KOH solution reacts with 57.5ml of CH3COOH solution, what is the molarity of the acid solution?
1 answer
564 views
let E,F and G be three events. state expressions fo rthe events.
a. only F occurs b. exactly two of the events occur. c. at
0 answers
1,091 views
Vong grilled 21 burgers at a block party. He grilled the same number of pounds of turkey burgers as hamburgers. Each turkey
2 answers
920 views
Solving Systems by Substitution
Maribel has $1.25 in her pocket. The money is in quarters and dimes. There are a total of 8
1 answer
1,299 views
calculate the upper limit for the definite integral from -2 to 2. oh x^2+1 dx with the partition P=-2,-1,0,1,2
0 answers
360 views
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