H

This page lists questions and answers that were posted by visitors named H.

Questions

The following questions were asked by visitors named H.

OK I REALLY NEED HELP!!! and i AM DESEPRATE!! I have a titration courswork tomorow and i need to know the measurment,procedual and significant errors that are made in titration and how they can be improved. Also i need help with the evaluation bit. I REAL...

How is recombinant DNA technology used today? I have to use bacterial chromosomal or genomic DNA,plasmid,restriction enzyme, vector, sticky end, transformation, DNA ligase, gene cloning,restriction fragment, and restriction site in the answer.

Why are plasmids a good way to carry new DNA into host cells?

Can fragments from two different species (human and bacteria) that are cut by the same restriction enzyme be joined? what enzyme would be necessary?

I have no clue: Two parallel plate capacitors have circular plates. The magnitude of the charge on these plates are the same. However, the electric field between the plates of the first capacitor is 2.2 x 10^5 N/C, while the field within the second capaci...

An electron is released at the negative plate of a parallel plate capacitor and accelerates to the positive plate a) as the electron gains kinetic energy, does its electric potential energy increase or decrease? Why?

The plates of a parallel plate capacitor are separated by a distance of 1.2cm, and the electric field within the capacitor has a magnitude of 2.1x 10^6 V/m. An electron starts from rest at the negative plate and accelerates to the positive plate. What is...

During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud-Vground= 1.3x10^8, with the cloud being at the higher potential. What is the change in an electron's electric potential energy when the electron m...

A positive point charge and a negative point charge have equal magnitudes. One charge is fixed to one corner of a square, and the other is fixed to another corner. On which corners should the charges be placed, so that the same potential exists at the emp...

Can you explain what happens with PCR?

a.(16-2+13=27) B.(8+2-9=11) c.(3-10+9*7=56) right a and c are correct b is wrong first you said B is wrong then you said its right 18 + 2 - 9 = 11

simplify: 2+3*10/5*3-9= A.-5, B.21, C.-60, D.11 , 2+18-9= 20-9=11 so 11 is right i don't got it can you explain more thanx.

a.(16-2+13=27) B.(8+2-9=11) c.(3-10+9*7=56) right

simplify: 2+3*10/5*3-9= A.-5, B.21, C.-60, D.11 (B) is the answer right

16-10/5+13= A.31,B.1/3,C.139/9,D.27 B is my answer is it right

the smith family is going to buy a home for $150.000.they will need a 10%down payment.how much will they need? my answer is $15,000 is it right

emily wants a new dress.she only has $30 to spend.she lives in florida where the sales tax is 5%.about(estimate)how much can the dress cost if she wants to spend all her money? a.30,b.29.50,c.28,d.20 i don't get it

linda inherited an estate worth $225000.the attorney told her that the inheritance tax was 7% and that they would deduct it from the estate before giving her the money.how much money will she receive? $15750 right

emily wants a new dress.she only has $30 to spend.she lives in florida where the sales tax is 5%.about(estimate)how much can the dress cost if she wants to spend all her money? $29.50 right

daniel has a money market account with $1200.the bank offered him a special rate of 5.25%per month.how much money will he have after the first month? $1263 right (thank you so much)

sue has $400 in her saving account.if the bank pays her 6 1/2% interest,how much interest will sue earn? $26 is my answer right

jim bought a pair of shoes for $50 and laces for $1.if the sale tax is 7%,how much tax must he pay? $3.57 right

write 67 hundredths as apercent?a.670% b.0.067% c.67% d.0.67% (d)or(c)

one word associated with the division operation is each? true right

write 67 hundredths as apercent? 0.67% right

percent means hundredth? true right

the symbol % represents percent or percentage? true right

1/4 + 3/4=1 right

when two numbers are multiplied,the result is called the product? true right

There is a bar magnent falling through a metal ring. The first metal ring is solid all the way around but in the second metal ring it has been cut through. Why is the motion in the magnent with the solid metal ring retarded when the magnent is above the r...

In a ballistic motion experiment with a ball being lanched from a ballistic launcher and hitting a impact point.How do we explain how the work done by non-conservative forces UNC changes the impact distance.

Explain how the pitch of the roaring sound relates to the length of the tube.

A seashell is basically an open-closed tube rolled up. Explain why you hear a roaring sound (the sound of the sea) when you place a seashell (or any other kind of tube) up to your ear.

A continuous stream of water is flowing out of a faucet and falling into a sink below. Explain why this stream of water is narrower at the bottom (near the sink) than at the top (near the faucet).

Many subatomic particles have the same charge as an electron (e) but much different masses. For instance, the muon has the same charge as an electron but its mass is roughly 207 times greater. Explain the changes you would have to make to the e/m tube and...

A free electron is captured by a proton forming a Hydrogen atom. If the electron ends up in the ground state then what is the wavelength of the photon it emits during this process?

Suppose the growth of a population in millions is modeled by 3.2*(4.72)^t. What is the size of the population in millions?

Sorry i typed the question wrong. Suppose the growth of a population in millions is modeled by 3.2 * (4.72^t. What is the size of the population initially?

Which substances in each of the following pairs would have the greater entropy? Explain. (a) at 75°C and 1 atm: 1 mol H2O(l) or 1 mol H2O(g) (b) at 5°C and 1 atm: 50.0 g Fe(s) or 0.80 mol Fe(s) (c) 1 mol Br2(l,1 atm, 8°C) or 1 mol Br2(s, 1 atm, -8°C) (d)...

What is produced at each electrode in the electrolysis of NaBr(aq) and AgF(aq)?

If you jump from rest from a height of 2.0 m above ground, what is your speed (magnitude only), right before you hit the ground? Give your answer numerically in m/s using decimal notation (omit the units). Use the acceleration due to gravity as g=9.8 m/s2...

Give a response of at least 50 words to the following: Describe the graph of the interval [-4, 3). • Explain how this differs from the graph of the interval [-4, 3]. From the question above, does the answer below sound right? The interval notion is a way...

Here is the question: The mortgage department of the company is selling two model homes that are located on the same block. The square footage, as well as the type of model, determines the cost of these homes. e) The second home has 1000 square feet less...

Okay, I think I have arrived at all the answer to the questions thrown my way. However, how do I explain what is happening “graphically”, where the services are charging same rate?

Okay, I think I have arrived at all the answer to the questions thrown my way. However, how do I explain what is happening “graphically”, where the services are charging same rate? : Your company must use a transportation service to shuttle their corporat...

I am lost, and I bet it is simple, but I have been working with many problems and I keep coming back to this and I grow increasingly confused. How do I begin to solve this problem? In 1993 the life expectancy of males in a certain country was 71.7 years....

My answer to the question below is >=22.5 is it correct 0.6x+4<=1.0x-5

I am working on a problem where I am to graph the equation and identify the y intercept the equation is y+x=-9 On the graph, I plotted (0,-9) and (-9,0); I identified the y intercept as (0,-9) Is this correct?

A rectangular field 250 m long by 110 m wide. How much shorter is it to walk diagonally across the field than around the sides?

What would the final volume of water be if 80.0 kJ were added to a 100.0 mL sample at 100.0 degrees Celsius?

A 8.2 gram lead bullet that was stopped in a doorframe apparently melted completely on impact. Assuming the bullet was fired at room temp., what is the minimum muzzle velocity of the gun?

trig question 2sin^2x+sinx-6=0 how to solve for x when the restriction is x is greater than or equal to zero but less than 2pi

Equal Masses of phosphorus and chlorine react according to the follow equation. 2P+3Cl2=2PCl3 Which reagent is in excess and what percentage of it will remain at the end of the reaction

An object accelerates from 5.0 m/s to 100m/s. If the object traveled 250 m during this time, what was the acceleration?

A car starting from rest, accelerates at 5.0 m/s^2 fpr an unknown time interval. If the car travels 250 m in the acceleration period, what is the time interval?

The value of c for which f(x) = x + c/x has a local minimum at x= 3 is (a) -9 (b) - 6 (c) -3 (d) 6 (e) 9

solve by using the square root method: (5y+4)^2+100=0

Integral from pi/6 to pi/4 of 2sin(2x)cos(2x)dx=

A 50.0 mL graduated cylinder has a mass of 67.6 g. When it is filled with an unknown liquid to the 38.8 mL mark, the cylinder and liquid combined have a mass of 119.4 g. Calculate the density of the liquid in g/cm3. (1 mL = 1 cm3.)

What mass of Ca(OH) 2 is required to make 1.5 l of a 4.0% (w/v) solution of Ca(OH)2 in water?

Evaluate the integral using any method: (Integral)sec^3x/tanx dx I started it out and got secx(1tan^2x)/tanx. I know I just have to continue simplifying and finding the integral, but I'm stuck on the next couple of steps. Also, I have another question wit...

A ball is dropped from the top of a building. The balls fall 3 times farther during its last second of freefall than it did during its third second of freefall. The ball fell 4.9 meters during its first second, how tall is the building and how much time i...

A key falls from a bridge that is 45 m above the water. The key falls straight down and lands in a model boat traveling at a constant velocity of 3.5 m/s. Calculate the distance the boat was from the point of impact when the key was released. Answer d= 10...

Suppose that we repeat the experiment shown in the video, but we replace one of the cylinders with a cylinder that has twice the radius (and use larger containers of water). If the height of the original cylinder is \rm h, how deeply must we submerge the...

27 ft of wire is to be used to form an isosceles right triangle and a circle. Determine how much of the wire should be used for the circle if the total area enclosed is to be a maximum? I can only find the minimum because the parabola is opening upward

suppose that the teacher of this class graded solely on a curve - 10% get A, etc. How might this effect students getting into into study groups to prepare homework or tests?

WHAT IS CENTER OF MASS?

How much heat would be absorbed by 55 grams of copper when heated from 24 degrees Celsius to 40 degrees Celsius? The specific heat of copper is .385 My answer is 338.8 Joules. Is this correct?

A bridge 30 m long crosses a chasm. If the bridge is inclined at angle of 20 degrees to the horizontal, what is the difference in height of the two ends of the bridge?

You pull a 30.5 kg wooden box with a rope that makes a 23.0° angle with the horizontal at a constant speed. The coefficient of kinetic friction between the box and the deck is 0.330. You pull the crate a distance of 5.25 m. How much work was done? Do you...

The distance from earth to the galactic centre is 23000 ly. What constant speed would be required to make the journey in 30 y of an astronaut's lifetime? I know the answer should be 0.99999915c but don't know how to get there with time dilation or length...

If y = x^3 + 2x^2 if reflected across the line y =x, what is the resulting equation? This is what I have so far: x = y^3 - 2y^2 x = y^2 (y - 2) x/(y-2) = y^2 <---- this is where my problem starts, I know I am not supposed to have y on both sides but am un...

Activity Coefficient for Phosphate Buffers: How would I calculate the predicted pH for Na2HPO4 and NaH2PO4? For hypothetical pH 6- we added 94mL of H2PO4 and 6mL of HPO4 (for a total of 100mL). But how would I calculate "actual pH"? We measured at two dif...

Beside parasitism, invertebrates exhibit various other symbiotic relationship explain with examples? Please help me

which invertebrate made the transition to life on land,they forced two challenges- the first was to avoid drying out and the second was to develop a means to obtain oxygen. which invertebrate made the transition successfully and what adaptations have they...

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=3−x about the x-axis.

Vang Enterprises, which is debt-free and finances only with equity from retained earnings, is considering 7 equal sized capital budgeting projects. Its CFO hired you to assist in deciding whether none, some, or all of the projects should be accepted. You...

The first 5 terms of an arithmetic sequence are -2, 5, 12, 19, 26 Find the formula for the nth term of this sequence

What organisms use cellular respiration

Which part(s) of the reaction H2O(g) + C(s) ⇀↽ H2(g) + CO(g) will be favored by an increase in the total pressure (resulting in compression)? 1. Neither is favored. 2. reactants 3. products 4. Unable to determine Not sure how to do this

1. You can construct congruent triangles if you know which of the following? A. The Measures of two Angles B. The Measures of three Angles C. The Measures of two Sides D. The Measures of three Sides** Please help! Any of the t est answers would help :(

A rectangular carton has twice the height one-third the length, and four times the width of a second carton. The ratio of the volume of the first carton to that of the second is A. 16:3 B. 3:1 C. 8:3 D. 3.8

For what kind of external environment is a saltwater fish adapted? Isotonic Environment Osmotonic environment Hypotonic environment Hypertonic environment Can someone help me idk which one it is

6CO2 + 6H2O → C6H12O6 + 4O2 How many molecules of carbon dioxide are involved in this reaction? How many molecules of sugar are produced in this reaction? How many atoms of carbon are on the left hand side of this equation? How many atoms of carbon are on...

Which is a good description of kinetic energy? conserved energy stored energy energy from the sun energy of motion A person throws a ball up into the air. At which point in its path will the ball have the greatest potential energy? when the ball reaches i...

Students were surveyed to find out their favorite ice cream flavors. The results showed that 48% chose vanilla and 20% chose strawberry. In addition, 30% chose vanilla and strawberry What is the probability that a randomly selected student chose strawberr...

Find the nth term of the sequence. 11. 𝑎6 = −38 and 𝑎11 = −73

Which is the term for an explanation that can be tested? Unit one lesson four

Which is the term for an explanation that can be tested? A: A conclusion B: an analysis C: A hypothesis D: an experiment

What type of evidence is needed for a hypothesis to be supported or not supported

Answers

The following answers were posted by visitors named H.

Hi there, lim [ln(x-1)-ln(x+1)] b, -2 cannot get (ln(3)-0)-(oo-oo)) because ln(-00) has no definition. We should make it ln(x-1)-ln(x+1)=ln[(x-1)/(x+1)],then lim[ln[(x-1)/(x+1)]]b,-2 b->-00 is ln(3).

<Two angles> and their included angle or three sides? I think that should be <two sides>, then angle C is the one included by sides a and b. That's why answer A is wrong.

and thank you again

A free electron is captured by a proton forming a Hydrogen atom. If the electron ends up in the ground state then what is the wavelength of the photon it emits during this process?

It would look like this...9(23-4y)+7y=4 Then you simplify 9*23=207 9*-4y=-36y so you now have 207-36y+4y Combine like terms -36y+4y=-32 -32y=4 Finally you divide the end result is y=-8

I added a few more sentences, does this sound okay, or should I exclude it? The interval notion is a way to express solutions of an inequality. Points a and b are the endpoints of the interval; we can include parentheses and brackets to express the interv...

Graphically, where the services are charging the same rate, the graphs will intersect. A solution of a system of equations in two variables is an ordered pair that makes both equations true.

They are authoritarian answer c

I know this is late, but its mostly to those that will get this problem at some point. You are right about the journals. To find the Rent expense, you need to add ALL payments (11,000+11,600+12,200+12,800+...+23,000) then divide by 21 (the term of the lea...

16 is the american. do you know what 11)I didn't care much for the poems she wrote. ?

22 is B. do you know 7) I wonder if my daydream of my neighbor's house being raided has worked its way across the street. ?

23. 5.87 25. 9.035 27. 8.669 29. .143

thanks for the first part. i wanted something that was more step-by-step for the second one.

just get the molar mass and use multiplication by one, meaning it would be mol/1 x grams(from molar mass)/moles(1)of the compound.

Yep Same Worksheet crossword works with the answer posted by TC in 2010

0 is the intercept because the line passes through the axis at X=0 or y=0

C!! just took the quiz and got all of it right!

Set the centripetal acceleration V^2/R at the top equal to g. That will assure that the car does not leave the track.

wow, ms sure you were wrong! thank you NO, for the answers! yours was all correct!

But doing this for 6 won't work out because you'll get a non real answer for the log....

I think is e=200x+0.04

yalp is correct.

The answer is A

Yeah is this guy correct. And uh Ms.sue can you give me a link where you fond theses thing. , i would not mind reading it

*found. *these things

Can u check my answers ms.sue i got these from my social studies book

Social Studies Unit 6 Lesson 1 Pretest 1. C 2. A 3. C 4. B 5. A 6. D 7. A 8. C 9. B 10.D

Answer: loading

How do you do this! It’s so hard

Thanks for nothing

I NEED HELP ALANA!

51 is B actually i just took test

I need some help on the essays, I lost the book last month while cleaning

KAYLA IM CACKLING- also don't put your actual first name and the school your from in your post that's not a good move-

For everyone wondering 🗑 is correct First one is : Analogy Second one is : Movie and roller coaster ride Third one is : analyze the connection between what is being compared

I think it is c but i'm not for sure

Uh well I don't know if this can help you guys and it's kinda late but I found this answer on a different site. This is not a prime factorization. 2 is prime, so is 3, and 5, as well as 11, but 8 is not prime. 8 can be broken down into 2^3. Plug this back...

oh and also these are the correct answers for the multiple choice if u wanna double check, 1B 2C 3C 4C 5C 6B 7C 8C 9C 10B 11A 12D 13D 14B 15D 16B 17A 18C 19A 20C If I'm wrong in any of them I'm sorry!

Uh this is kinda late but these are the correct answers 1B 2C 3C 4C 5C 6B 7C 8C 9C 10B 11A 12D 13D 14B 15D 16B 17A 18C 19A 20C If I'm wrong in any of them I'm sorry!

How did you guys figure this out?

1.B 2.D 3.A 4.D 5.B

HHHHHHH? HHHH HHHHHHHH HHHHHHH HH H HHH HHHHHH HHHH H HHHHHHHH. /: HHH HH.

HHH HHHH HH HHHH HHHHH...

HHHH HH HHH HHHH HHHH HHHHHHH...

HHH HHHH! HHH HHHH ):<

HHHHH HH H HHHH HH!

That's because x=y is the answer...

tempest is still right

Roblox is wrong just failed , the real answers are 1. A lesson about life 2. The idea that connects the story's parts 3.objects or actions that represent idea 4.caring for a pet can help people 5.by analizing details about the main character etc.

bruh is correct as of 02/02/2021

I love this website THANKS SHA

ITS -2,3 HOW U NOT KNOW THAT YOU NEED STUDY MORE DU.MB IDIOTS

Bruh is correct

coconnut is wrong i got a 3/5

. Is correctttt 💯💯💯💯💯💯💯💯

hot dang this thing is old.

hhm idk this answer, anyone out there know??

Don't copy Issacs paragraphs ur teacher will mark u a F+ for copying others paragraphs

IDKKKK IMAOOOOOO

TYSM Warrior Cat Lover

It's self actualization if yours doesn't show as D

When I used his I got a bad grade

TYSM YOONGI THEY’RE RIGHT