Posts by Daisy

Total # Posts: 280

Physics
Oh wait, I just tried a different equation and want to confirm that this is correct: M = Fobj/Fep => Fep = Fobj/M ==> Fep = 19cm/5.25 = 3.62 + 19cm = 22.62 cm

Physics
The Question is: An objective lens of a telescope has a 1.90 m focal length. When viewed through this telescope, the moon appears 5.25 times larger than normal. How far apart are the objective lens and the eyepiece when this instrument is focused on the moon? I know that the ...

science
mohan travels at 20m/s from home to market and returns at 25m/s find his average velocity for the entire journey

Physics
A 2.00 ✕ 106 Hz radio signal is sent a distance of 7.30 ✕ 1010 meters from Earth to a spaceship orbiting Mars. Approximately how much time does it take the radio signal to travel from ...

maths
a) add up all the students, then subtract from 100: 100-(28+30+42)=0 You don't need to account for the students taking multiple classes because they will already be counted in the individual class. b) subtract the number of people taking french and another class from the ...

History
Which answer best explains how Ralph Waldo Emerson's Concord Hymn is an example of Transcendentalism? It emphasizes war, violence, and victory. It emphasizes nature, feelings, and memory. It emphasizes the importance of social reform.*** It emphasizes tolerance, education...

Physics
Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing for a healthy young person. The frequency of one of the ultrasonic waves is 84 kHz. (The range of hearing for a healthy young person is 20 Hz to 20 kHz.) (a) What is the smallest...

buisness
If you find a job posting for a community college that clearly states that the job will close on 08/15/2017, what does this mean? a. Someone will be hired by that date. b. The employer is only hiring until that date. c. After that date, the employer will no longer accept job ...

Math
Let A denote the portion of the curve y = sqrt(x) that is between the lines x = 1 and x = 4. 1) Set up, don't evaluate, 2 integrals, one in the variable x and one in the variable y, for the length of A. My Work: for x: integral[4,1] sqrt(1+(dy/dx)^2) dy/dx = 1/2sqrt(x) (dy...

Calculus - still confused
Oh sorry about the that, I was starting to do u substitution and was changing my limits to [16,1] but then remembered I didn't have to evaluate. And gotcha! so then for C would the set up be ?[-2,4] 2pi(sqrt(x) - 2) ?(1 + (dy/dx)^2) dx oh wait... wouldn't x = -2 give ...

Calculus
NOTE!! I just realized all of my integral symbols turned into a^<< please note, they are meant to be the integral symbol!

Calculus
Let A denote the portion of the curve y = sqrt(x) that is between the lines x = 1 and x = 4. 1) Set up, don't evaluate, 2 integrals, one in the variable x and one in the variable y, for the length of A. My Work: for x: ∫[4,1] sqrt(1+(dy/dx)^2) dy/dx = 1/...

Calculus
Thank you Steve!

Calculus
Can you please check to see if these answers are correct? I have provided my work as well! That you! This is much appreciated!! 1. What is the volume of the solid that is generated by revolving the region bounded by the curves x = 3y^2-2 and x = y^2 and y = 0 about the x axis...

Calculus
Hello, I would like to make sure the answers to these questions are correct. 1. Using the shell method, what is the volume of a solid that is generated by rotating the region by y = x^2 and x = y^2 about the x axis. My Work: r = y h = sqrt(y) - y^2 2pi ?[0,1] (y)((sqrt(y) - y^...

riddle
It's a calendar Because a calendar hosts a year and every day is new but old because a day such as that has been before. Like a year before has same days and weekends recurring in another year.

Calculus
I would like to know if my answers are correct: Disclaimer: We are allowed to keep our answers in formula form 1. Use the washer method to find the volume of the solid that is generated by rotating the plane region bounded by y=x^2 and y = 2-x^2 about the axis y=-1 My Work: [...

math
A factory kept increasing it's output by the same percentage every year .find the percentage if it is known that the output is doubled in the last two years.

Maths
Take a sub ex:eng Let the marks of 10 friends be 1,2,3,4,5,6,7,8,9,10. Mean=sum of all data ÷ no.of data. So' mean= (1+2+3+4+5+6+7+8+9+10) ÷ 10 . Solve it and you get mean of marks of your friends in English. Do this for other subjects.

Graphing Linear Equations and Inequalities
I have solved the TABLE manually. Thank you

Graphing Linear Equations and Inequalities
Fill in the t-table below for the equation. Then graph the line on the grid by selecting two of the points from your table. 3x+4y=-16 x y ?4 0 4

Finite math
Let S={1,2,3} be a sample space How many subsets of S contain the number 3? How many subsets of S contain either the number 2 or 3?

science
Determine the magnitude and direction of the horizontal resultant force on minibus A=1800N and B=800

Physics
A box of mass m = 59.0 kg (initially at rest) is pushed a distance d = 84.0 m across a rough warehouse floor by an applied force of FA = 204 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. ...

Statistics
Of the 40 students in a gym class, 13 played volleyball, 12 ran track (4 of whom did a push up), and the remainder were absent. A.) What proportion of the class ran track? B.) What percentage played volleyball? C.) What percentage of the runners did a push up? D.) What ...

Math
Round 1.98 to the nearest tenth

Math
A wheel has a radius of 5ft. How many revolutions would it take for the wheel to roll 62.3 ft.? Round your answer to the nearest tenth.

Maths, geography, life sciences and physical scien
Identify three courses or study fields you are interested in following after grade 12.provide two reasons why you find this a suitable course for each choice

Physics
Block B in the figure weighs 739 N. The coefficient of static friction between block and table is 0.34; angle θ is 26°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.

Life orientation
Maths, geography,life science and physical science

Comm Tech
Z is right

Chemistry
The air was in a cylinder equipped with the piston absorbs 565 duels of heat and expands from an initial volume of .10 l to a final volume of .85 L against an external pressure of 1.0 ATM what is the change an internal energy of the air within the cylinder

Maths
How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0

Maths
How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0 I thought you would use the quadratic formula somehow, but I'm not sure

Maths
I = Alog10(t) + B I equals 8 when t is 3 I equals 50 when t is 8 t can't go past 200 A and B are constants Find A and B when I reaches 100

math
what hhs

pre-calculus
which expression is equivalent to (sinx+1)(sinx-1)? A.) COS^2X B.) -COS^2X C.) COS^2X+1 D.) COS^2X-1 E.) -COS^2X+1

pre-calculus
find the exact value of sin 112.5 in fraction form

pre-calculus
which of the following is a solution to 3tan^3x=tanx? A.) 60 degrees B.) 120 degrees c.)150 degrees D.)240 degrees E.)300 degrees

pre-calculus
Which of the following is NOT a solution to cos^2x=3sin^2x? A.) 30 degrees B.) 60 degrees C.) 150 degrees D.)210 degrees E.)330 degrees

pre-calculus
What is the exact value of sin 225

Pre-calc
which expression completes the identity sin ucosv=?

algebra
I think that this is a bad website lol # notahater

Science
And also I did that it shows the process of kidney filtration instead of blood filtration

Science
Well I have web search a billion times but still thank you for helping

Science
So what do I do

Science
Explain the process of filtering blood

Math
3.455 round off to the nearest tenths

Math
And do I have to find the lateral surface area of the cylinder on number 2 or the total surface area

Math
I still don't get #3

Math
All of them. These were the only 3 question that I did not get on my homework packet.

Math
1. Mailey mother brought her a pet hamster. She is keeping Montey, the hamster, in a box with a length of 8.3 in.,a width of 6in.,and a height of 5,25in. Mailey plans on covering Montey's box with contact paper. How many square inches of contact paper is needed to ...

Goverment
I apologize of bothering you I got the answer and I apologize again

Goverment
What's that suppose to mean??

Goverment
You have to write whether it is bill of attainder or habeas corpus that would prevent the situation form happening

Goverment
I don't get it

Goverment
1. Read each situation. Write whether a bill of attainder, an ex post facto law, or a writ of habeas corpus woul prevent the situation from happening. A. ______________ shortly after video cameras were invented, a man evident aped a rock concrete. Years later this was declared...

Math
A roll of paper towels is 10 inches high and 2.5 inches in diameter. How many full squares inches of paper towel can fit on the roll in 15 rotation? * all I need is a formula of this question. Do I use lateral surface area formula or total surface area formula

Science
Q1. Why is the shape of the nerves important in the nervous system? Q2. Which structure is more complex, a tissue or an organ? How do you know?

Science
So is it a that is my guess by looking at the website you sended me Ms. Sue

Science
Which statement is true of an organ system? A. It supports all part of the organism. B. it is not necessary for the survival of the organism. C. One organ system can take over for another organ system. D. It has no connection with other organ system in the same organism.

algebra
Deposit is $15 and coat of hour is $4.20 so write an equation to represent the total cost y renting a tube for any number of hours x.

Math
I did but I still don't get it. Should I multiply the number in the parenthesis by the scale factor

Math
1.Quadrilateral GHJK has vertices at the following coordinates: G(-2,-6), H(-8,-8), J(-6,-2), and K(0,0), what would be the new vertices if the quadrilateral was dilated by the scale factor of 1.5? G':_________ H':_________ J':_________ K':_________ Could ...

english
In "In Just-," the poet uses the words "and bettyandisabel come dancing / from hop-scotch and jump-rope and / it's / spring" to create a mood of (Points : 5) boring routine. happy activity. peaceful days. hopeless dejection.

Math
Okay thankyou

Math
As my lenght

Math
Should I put 28

Math
Is it about 27 or 28.

Math
George is making a permanent for his favorite baseball team. He wants the short edge to be 14 inches and the height in the middle of the right triangle to be 24 inches. What is the length of diagonal side AB?

Math
Thanks

Math
I mean idon't get question #1

Math
And what about question2

Math
Q1.A tree was chopped by the Samuels family for the holidays. How tall was the tree originally if the piece they chopped down was 7feet tall, and fell 4 feet from the stump? Q2. Mr pratt's rake is leaning up against a wall. If the top of the rake hits the wall 5 feet above...

Math
Thank you

Math
Cannon wants to make a garden with a border of his yard. He has lumber in several different lengths. Which three lengths could be used to make a right triangle to fit into the corner of his yard? A. 4ft.,6ft.,10ft. B.7ft.,12ft.,15ft. C.5ft.,12ft.,13. D.10ft.,15ft.,20.

Math
Thanks

Math
how could you change one of the squares so that a right angle would be created

Social studies
I do not get the background and the problem they faced

Social studies
I need Sam Houston and Mirabeau Lamar -background -problems each of them faced -Native American -military spending -annexation I want them to be separate like contrast

Science
In the experiment water clock : what changes (independent variable) , how does it responds to the changes made(dependent variable), and what is being controlled (controlled variable). Pleas I really need this by today. And also my question for science fair is what part does ...

Science/engineering
Thanks alot

Science/engineering
What part does gravity play in the function of the water clock? Explain.

Engineer
I do get the but could maybe explain me the question In easy version (if so)

Engineer
Than you soooooooooooo much. You are a life saver. Thank you.

Engineer
What part does gravity play in the function of the water clock? .I kind of don't understand this question. All I need is a better understanding

English
3.) Adverb- differently, today 9.) Adverb- Sometimes. Verb- continued

English
I have to find the adverb in each sentence. Then I have to identify the verb it modifies. 1.)Native Americans originally developed lacrosse. Adverb- originally. Verb-developed. 2.)It was first played by the Iroquois. Adverb- first. Verb- played. 3.)It was played differently ...

Engineering
What part does gravity play in the function of the water clock? .I kind of don't understand this question. All I need is a better understanding

Ceramics (help!!!)
When creating clay forms what must be done with inside?? When applying glaze to a ceramics piece, it is important to wax the foot, or the bottom of the piece. What might happen if it isn't waxed??

math 6
A certain colony of bacteria triples in length every 10 minutes. It's length is now 1 millimeter. How long will it be in 40 minutes?

Engineer/robotic
How to tell by an example which is a robot and which is a nobot? My example is: security lights that turns on whenever someone walks by= nobots I need to know how do you know by an example which is which

math
Nvm, I think its 40.. I multiplied 2 10 and 2 and got 40 I don't think I have to round again so.

math
** multiply sorry..

math
Thank you so much. Do I have to add them up now? then round my answer? The answer choices are 60 54 40 36

math
Estimate the value of this expression by rounding each number to the nearest unit. (1.63)(9.95)(2.46) Plesse help..

Survey of Mathematics
Suppose a car rental agency gives the following choices: Option A: $30 per day plus 40 cents per mile Option B: flat $50 per day (unlimited miles) At what mileage are both rates the same if you rent the car for 3 days?

math count warm up
i still don't get it

P.E
Happiness, sadness, and fear are examples of blank emotions. A. Learned B. Primary C. Secondary D. Innate Is the answer A?

Science!
An oven is a technological system. Which of the following describes an input into this system? A. Setting the temperature B. Burning gas releases heat. C. A thermostat monitors the temperature and increases the gas flow when the temperature falls too low. D. A cake is baked Is...

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