Posts by ella

Total # Posts: 360

physics 10
1.) 100 kJ of heat is added to 600g of zinc at 20 C and 75g of it melts. If the specific heat of zinc is 0.385 kJ/kg-C and it melts at 420 C. What is its heat of fusion? 2.) If all the heat lost by 1kg of water at 0 C when it turns into ice at 0 C could be burn into KE, What ...

Stats
The waiting times between a subway to Podger schedule and the arrival of the passenger on uniformly distributed between zero and nine minutes find the probability that a randomly selected passenger has been waiting greater than 3.25 minutes

physics
skater has a mass of 45 kg and is at rest. skater 2 has a mass of 50 kg and is moving along at a constant velocity of 3.2 m/s East. skater 3 has a mass of 75 kg and is moving quickly at a constant velocity of 9.6 m/s East. which state experiences the greatest force?

Math/algebra
thank u Steve soo much

Math/algebra
Ms. sue i don't know that is what im trying to find out

Math/algebra
i'm dividing 52 glass bears into groups she has 1 left over how many groups thanks ella

mathematics
From an airplane at an altitude of 1200, the angle of depression to a rock on the ground measure 28 degrees find the horizontal distance from the plane to the rock?

Math
2+5=7 1/3 Sue=2/7

Science
DIMNDHAWK is right. I got 100%

Science
Identify and discuss at least two forces that would be involved when an elderly patient who is proped up at about 4 degrees in a bed and slowly slides down to an almost horizontal position?

Science
Connnexus students! -Oct 3rd 2017- -Lesson 6 Cells working together- 1:A 2:C 3:D 4:B 5:B 6:D 7:B 8:D 9:D 10:D I got 100%! Hope you all do well make sure you double check

physics
gain, not again

physics
Assuming 100% transfer of energy in the system, please calculate maximum KE (Kinetic Energy) that the rocket has if the rocket were to again a height of 25 meters. Rocket mass = 0.5 kilograms, and gravity = 9.8 m/s^2

Math
No the cook doesn't have enough flour. You first need to find a common denominator of twelve. So you are 1/12 a cup of flour short.

Honors Chem
If I make an ice pack with 750 mL of water, what mass of ammonium chloride must I include to get the temperature to drop from 20 degrees celsius to 5 degrees celsius. The heat of solution of the water and ammonium chloride is 14.8 kJ/mole. I just need help setting this problem...

CHEMISTRY HELP
how can analytical chemistry help on different fields of sciences and technology?

English
Birches by Robert Frost When I see birches bend to left and right Across the lines of straighter darker trees, I like to think some boy's been swinging them. But swinging doesn't bend them down to stay As ice-storms do. Often you must have seen them Loaded with ice a ...

ap biology
The best conclusion concerning delta is that the cells a. contain no DNA. b. contain no RNA. c. contain only one chromosome that is very short d. are actually in the G0 phase e. divide in the G1phase Explain your choice: Would it be d?

math
GCD (24,20) IS 4. sINCE gcd(4,12 ) is 4 then GCD (24,2012 IS 4 USE Euclidem LGERITHM TO FIND THE gcd 722, 2413,209

English
Here is another poem that uses personification to help define the theme. Answer the questions that follow using all you know about poetic devices. The heart asks pleasure first, And then, excuse from pain; And then, those little anodynes (a medicine that relieves pain) That ...

English
Act I of An Enemy of the People Question Think carefully about what each quote might infer about the character and choose the most appropriate answer in the context of the play. Taking one thing with another, there is an excellent spirit of toleration in the town--an admirable...

MATH
write the following square root in the form a over sq root b, where a and b are intergers and b has the least value possible root 63 =

Math
thank you Jeff(:

Math
What is the order of the numbers from least to greatest? 2.01, 2.1, 2.001, 2.11, 2.011

History
Hey, if you look under this at related questions.. People asked the same thing and it has answers(:

math
Bert is 5 years older than twice the age of mario. Nine years ago, the sum of their ages is 50. How old is each now?

Please check my answers because I need to do good at this. 1. When consuming fats the healthiest choice is foods high in? A. saturated fats B. unsaturated fats * C. trans fat D. cholesterol 2. The body's main energy source should come from what essential nutrient? A. ...

physics
find the mass of a ball on a roof 30 meters high, if the ball's gravitational energy is 58.8 joules.

Art
Homework Helper is correct except for #2 it's A. This is for Connexus students! All but 2 is correct!

Math
No, I disagree because all the methods are made differently and used differently. But, if you were using the same multiplication problem, it would all equal the same.

Algebra word problem
A parabolic arch has a height of 20 m and a width of 36 m at the base. If the vertex of the parabola is at the top of the arch, at which height above the base is it 18 m wide?

Science
Yes, I would agree

Math
C B C C C I got 100% of you're from Connexus then you'll get them all right!

An airplane has an air speed of 112m/s [N 20 degrees W] and has a ground speed of 106 m/s [N 25 degrees W]. Find the velocity of the wind.

A student swims at 4m/s. She is swimming from west to east across a river that's is flowing 2.2m/s [S]. A) if the river is 100 m wide, what is the quickest time that she can swim the entire width? B) how far downstream will she be? C) if she decides to go directly across ...

quiz tomorrow on these type of questions I need help!!!!

Physics
A student swims at 4m/s. She is swimming from west to east across a river that's is flowing 2.2m/s [S]. A) if the river is 100 m wide, what is the quickest time that she can swim the entire width? B) how far downstream will she be? C) if she decides to go directly across ...

Help with physivs

physics
An airplane has an air speed of 112m/s [N 20 degrees W] and has a ground speed of 106 m/s [N 25 degrees W]. Find the velocity of the wind.

physics
A car is moving with a velocity od 10.1m/s [N] while on a ferry that is moving across a lake.if an observer on shore measures the velocity of the car to be 29m/s [N] how quickly is the ferry moving?

Physics
A car is moving with a velocity of 10.1m/s [N] while on a ferry that is moving across a lake. If an observer on a shore measures the velocity of the car to be 29.0m/s [N] how quickly is the ferry moving?

History of Old Europe
It is C

I would like to read I have a faction by multiplying 3×2+1 then that is 7/2 then multiply that by three which is 10 1/2.

I would like to read I have a faction by multiplying 3×2+1 then that is 7/2 then multiply that by three which is 5 1/2.

geography
this occurs when cooler air cannot retain all its vapor

geography
This process distributes the heat from the sun around the earth?

geography
This reflects some heat back into space and traps some heat near the earth.

science
What do sporangia, cones, and flowers have in common?how do they differ

conducting expiriments
conduct the expiriment and record your results mean?

science
What can be done to prevent mine drainage from damaging the ecosystem

POL201
Fredick Winslow Tylor was concern with all but the following a. making workers feel appreciated b. making 1st class worker out of 2ne class worker c. efficiency d. good management

AP Chemistry
1,2-Benzanthracene is a yellow-brown nonvolatile solid with molecular weight 228.29g*mol-1. an 18.2632-g sample of 1,2-benzanthracene is dissolved in 250.0 g of benzene, C6H6. Whta is the vapor pressure of this solution at 25C, in millimeters of mergury, if the vapor pressure ...

social studies
a group who made laws to govern a certain people

spanish
?Le gusta tocar la guitarra a la maestra?

Health/Writing
Alright, thanks a bunch :)

Health/Writing
the story talks about his struggle from cancer. the removing cancer will come in the middle of the story. first i want to show how he ended up with it.

Health/Writing
So I'm writing a story about a guy who gets brain tumor because of a car accident. I know it may be a stupid question, but how can someone retrieve tumor in such a situation? Or where can radiation, enough to give cancer, be found. Maybe a place or a truck or something ...

Algebra
The answer is C, I looked at his answer and all that is different is he multiplied the equation in the parentheses by 2!!!

Chemistry
Alcoholic drinks contain ethanol. 10cm3 of ethanol is called one unit of alcohol. Men are advised to drink a maximum of 21 units of ethanol a week, while women are advised to drink a maximum of 14 units. Wine contains about 14% ethanol by volume. A) a bottle of wine contains ...

Wriitng
thank you guys!

Wriitng
What would be the reaction of a teenage daughter after rescuing her parents after their kidnap? so this is for a story I'm writing. basically, my main character finds her parents and is finally there after a lot of hard work and struggle. she's seen a lot of things she...

Writing
Thank you!!

Writing
what would be another way to phrase "i'm on a rollercoaster that only goes up". like is there another metaphorical or symbolic sentence like it which we can say. just to erase some confusion--i'm talking about using other words that portray the same meaning. ...

English

Geometry
Imagine a piece of square paper that measures 20 by 20 cm. You can make a box (with no lid) by cutting a square of the same size from each corner and folding up what's left to make a box. Keeping the lengths of each sides integers, what is the maximum volume box that can ...

Chemistry
If a student used an iron scoopula, instead of a plastic one, to add the unknown metal to the HCl solution, will it affect the calculated molar mass of the unknown metal? If so, how? Justify your answer with an explanation.

Chemistry
Can calcium hydroxide solution be used to distinguish Co(NO3)2 and Fe(NO3)3 solutions using only the titration technique? Justify your answer with an explanation.

math
Thank you.

math
George wants to build a square fence using 80 meters of wire. What is the area of the fence if you use all of the wire equally among each side?

Two Voice poem
Rmie, I am!! This helps a lot!

Algebra I
The sum of two numbers is 15. Three times one of the numbers is 11 less than five times the other. Find the numbers. Please help. ^.^

Algebra I
Find a number that is 96 greater than its opposite.

algebra
determine the equation of the line through the points (8,2) and (-4,-1) Please explain and show work

Trigonometry
Given that sin alpha = 15/17 and -360 <alpha<360 find all values of alpha to two decimal places. Help Please!

HISTORY
Good point. Thank You.

HISTORY
Necessary for all the countries that took part. Like America, Germany, Great Britain

HISTORY
Was imperialism necessary in the 19th century?

Math
Factorise fully: 5pq + 10p

median and mode
What is the median of this set of numbers 85,48,75,36,55

physics
A student throws two beanbags in the air, one straight up and the other one at a 30° angle from the vertical. Both beanbags are thrown with the same initial velocity and from the same height. In your own words, explain which one will come back and hit the ground first and ...

Poetry??
Read the following excerpt from “and sometimes i hear this song in my head.” "and our tongues keep remembering the rhythm of the words we forgot swaying on the backs of buses and in hot kitchens crooning in pool halls and shared bathrooms yeah/we carving a ...

Physical Science Help!
Can someone please help me balance these equations? Thank you for your time!! 1. NO + O2 ¨ NO2 2. NH4Cl + Ca(OH)2 ¨ CaCl2 + NH3 + H2O

Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?) Grams NaCl Moles NaCl # Molecules ...

Economics
Which of the following is a characteristic of a traditional economy? A. It encourages innovation and change. B. It is usually based on light industrial production. C. It has a high standard of living. D. It revolves around the family unit.

university physics
Derive absolute error in equations: 1)Derive absolute error in (e/m) e/m= 2V/B^2*R^2 2)Derive absolute error in B B=8uN(Inet)/square root 125a

university physics
A platinum resistance thermometer has resistances of 200.0 ohms when placed in a 0 degrees Celsius ice bath and 253.8 ohms when immersed in a crucible contacting melting potassium. What is the melting point of potassium? Hint: First determine the resistance of the platinum ...

science
dome

Math
IDK somebody help

physics, help! urgent!
A positive point charge q = +2.50 nC is located at x = 1.20 m and a negative charge of ƒ{2q = ƒ{5.00 nC is located at the origin. (a) Sketch the electric potential verses x for points on the x-axis in the range -1.50 m < x < 1.50 m. (b) Find a symbolic ...

physics, help!!
A metallic sphere initially has a net charge of +4.0 nC. A negatively-charged rod initially has a net charge of –6.0 nC. When the rod touches the sphere 8.2 x109 electrons are transferred to the sphere. What is the new net charge on the sphere?

physics
Three point charges, A=2.00 uC, B=7.00 uC, C=-4.00 uC, are located at the corners of an equilateral triangle. a) Find the magnitude and direction of the electric field position of the 2.00 uC charge. b) How would the eletric field be affected if the charge there were doubled. ...

english 11
example of situation irony in act iii of the crucible

math
I don't know

Math
40K

algebra
f the principal P = \$500, the interest I = \$250, and the rate r = 10%, find the following. (a) What is the time?

-7p-7,over 10 =-5 ?

geography
I'm pretty sure it's China.

Medical termanology
Give me a example of how to write the report.

Medical termanology
Write a fictitious medical report of about two paragraphs describing a dermatologic condition or disease. Focus the report on the onset,progression,location,and etiology of the condition or disease and the treatment parameters.

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