# Posts by DJ

Total # Posts: 290

**Physics**

A uniform rod of mass 444 g and length 1.41 m is pivoted about one end and oscillates in a vertical plane. Find the period of oscillations if the amplitude of the motion is small. The acceleration of gravity is 9.8 m/s^2. Answer in units of s.

**Math**

A cylindrical juice glass is 8 centimeters tall and has a diameter of 6 centimeters. If the glass is ¾ full, find the volume of the juice in the glass.

**Physics**

10 mol of an ideal gas expands isothermally at 373 K to 2.6 times its initial volume. Find the heat flow into the system. The universal gas constant is 8.31 J/K · mol. Answer in units of J. Any help much appreciated, I have no idea where to begin with this problem.

**math**

Last year, Lucy deposited $3000 into an account that paid 5% interest per year and $7000 into an account that paid 4% interest per year. No withdrawals were made from the accounts.

**Writing**

????

**Writing**

African Americans with no money, and people who are hungry.

**Writing**

to the African Americans ?

**Writing**

People with no money, and people who are hungry...?

**Writing**

Please?

**Writing**

I still can't think of any, Can I have like an example?

**Writing**

If people have money it doesn’t mean that they are happy with it.?

**Writing**

What audience was “Why, You Reckon?” short story by the author Langston Hughes written for?

**Physics**

A 231 kg block is released at height h = 3.9 m. The track is frictionless except for a portion of length 6.6 m. The block travels down the track, hits a spring of force constant k = 1624 N/m, and compresses it 1.7 m from its equilibrium position before coming to rest ...

**Physics**

I figured it out, thank you! Using 6482.14 J, I was able to find the coefficient of kinetic friction over the 6.6m segment by using the equation: W = mu*F*x. 6482.14 J = mu(231kg*9.8m/s^2*6.6m) mu = 6482.14/14,941.08 = 0.4338.

**Physics**

A 231 kg block is released at height h = 3.9 m. The track is frictionless except for a portion of length 6.6 m. The block travels down the track, hits a spring of force constant k = 1624 N/m, and compresses it 1.7 m from its equilibrium position before coming to rest ...

**Math**

Alex bought 9 tickets for $30. Adult tickets cost $4 and children's cost $2. How many children's tickets did he purchase?

**Math**

if the union member is able to invest their $12,000 is a fund that pays 1.8% compounded continuously, in how many years will the future values be worth $20,000?

**History need help asap**

1 is c

**english**

(b) Choose two of the scientists you read about in the Stories of Scientists unit. Compare and contrast these scientists. Answer this question in no fewer than two paragraphs. Be sure to include specific details about each scientist’s life, career, and personality in your...

**social studies**

gupta 100%

**Social Studies**

Ms. sue that cheater is right and helped me very much and YOU ARE NOT A TEACHER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! THEY HELP US NOT CONFUSE US!!

**Civics**

How did the ideas of Locke and montesquieu influence our founders views on our government?

**Science**

A species with two colour variation one mostly green and one is brown.How might populations of species change if the environment becomes a patchwork of tiny green and brown splotches? tnx.

**Science**

How do the colour of survivor animals relate to their habitat background? possible explanation tnx a lot

**Science**

what are some barriers to solve the zika virus problem? What are some possible solutions for zika virus problem? According to the off the podium article about zika virus. tnx a lot .

**Humanities**

Why is the Nice France Attack matters to you right now? *I already wrote a short paragraph but I need one more short paragraph to make it two. Can someone help me. Thanks a lot.

**social**

Please. Can someone help me write chapter 31 of the "Pay Forward Book" by Catherine Ryan Hyde. The book only have 30 chapters and we are ask to write chapter 31. Thank you

**social**

Can someone help me write the chapter 31 of the "Pay it Forward Book" by Catherine Ryan Hyde. Thank You

**math**

To keep the drink cold, the ice must last as long as possible. Thus, it should have a small surface exposed. That is where the heat transfer takes place. So, you need a high volume relative to its surface.

**algebra**

To keep the drink cold, the ice must last as long as possible. Thus, it should have a small surface exposed. That is where the heat transfer takes place. So, you need a high volume relative to its surface.

**algebra**

hey steve just answer the question for the poor kid! im wondering my self! can some help ME?

**Math**

questionare you from conections academy? if so go to the web mail and webmail your teacher for more help

**MATH**

1 3/4 cups of milk for 8 serving if the recipe increase to 24 serving how many cups of milk are needed. I

**MATH**

1 3/4 cups for 8 serving if the recipe increase to 24 serving how many cups of milk are needed

**Social studies**

Can someone make me a fractured fairy of Cinderella. Exposition? Initial incident? Rising Action? Climax? Resolution? THANK YOU.

**Science**

Describe how changes in society's attitude toward people in wheelchairs may have led changes in the wheelchair available to people who need them.Were these changes made using science or technology or both? Thank you.

**Science**

How science has been used to improve the vehicles that we drive today?

**math**

a scale drawing has a scale of 1cm:3m explain how the scale can be used to find the actual distance between objects in the drawing

**math**

60

**History**

1.)Studies conducted in england during the industrial revolution have shown that children born to poor families were, on average, shorter than those born to wealthier parents. The most likely expalanation for this difference in hieghts is a difference in A.)Nutrition B.)Family...

**History**

1.)Studies conducted in england during the industrial revolution have shown that children born to poor families were, on average, shorter than those born to wealthier parents. The most likely expalanation for this difference in hieghts is a difference in A.)Nutrition B.)Family...

**Science**

What is the difference between the density of cold water and the density of hot water.. Explain using the particle theory of matter. Thank You......

**Physics**

A hot-air balloon is rising upward with a constant speed of 2.65 m/s. When the balloon is 3.40 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

**Math,Science,Algebra,Geography**

Beryl Really Likes taking care of all the details needed to finish up a project. Her Belbin Team Role is? A.)Computers/Finisher B.)Resource/Investigate C.)Sharper D.)Plant

**Math,Science,Algebra,geography**

The 3 Letter code that summaries your 3 strongest career types is called your? A.)Holland-Code B.)Myers-Briggs Type C.)Teamwork Profile D.)Beblin Code

**Math,Science,Algebra,Geography**

the personality type theory that gives people codes based on their levels of four traits, including sensing-intuition or making of thinking-feeling is called the? A.)Holland Code B.)Myers-briggs C.)Beblin Roles D.)Team Work Profiles

**math**

Jeremy enlarged a picture.The length of the original picture is 8cm and the width is 5cm.The length of the enlarged picture is 10cm and the width is 7cm. A.What percent is the 10cm length of the 8cm length? B.What is the area of each picture?By what percent is the area changed...

**Science**

D is the answer.

**Science**

Spores ,Zygote, & Gametes

**Science**

which pair of terms correctly completes the diagram with (a) before "spores" and (b) after "spores"

**Science**

Angiosperms & Gymnosperms both produce? A.)Flowers B.)Cones C.)Spores D.)Seeds

**Science**

oh wait never mind I found the answer, Its "C"

**Science**

Ms.Sue , the link wont allow me to open the page 4 some reason

**Science**

In ferns, the sporophyte produces(1 point) A.)CONES,WHICH GROW INTO A GAMETOPHYTE B.)GAMETES, WHICH GROW INTO A GAMETOPHYTE C.)SPORES, WHICH GROW INTO A GAMETOPHYTE D.)SEEDS, WHICH GROW INTO A GAMETOPHYTE ?

**physics**

2.01s

**stats**

A sample has a mean of M = 73 and a standard deviation of s = 5

**chemistry**

If the theoretical yield of a reaction is 0.173g and the actual yield is 0.165g , what is the percent yield?

**chemistry**

Stainless steel is an alloy of iron containing 5 percent nickel and 0. 175 percent chromium. How much chromium is present in a 72.2 g sample of this alloy? Answer in units of mol.

**chemistry**

What is the % carbon by weight in 1.7 grams of potassium carbonate (K2CO3)? Answer in units of %.

**CHEMISTRY**

How many atoms of carbon are present in 12.9 g of a compound that is 36 .7% carbon, by weight? Answer in units of atoms.

**Algebra**

The area of a rectangle is 21 ft^2,and the length of the rectangle is 1 ft less than twice the width. Find the dimensions of the rectangle.

**Science**

Go Aric 5/5

**Kennedy King**

Present Value of an Annuity Sandra and Regina earn the same salary. However, Regina has been far more financially responsible. She pays her bills on time and pays off her credit card debt quickly. Sandra had been less financially responsible. She often buys too many shoes and ...

**physics**

12400

**geometry**

Tall and skinny..I found out the base of the triangle is 2.

**geometry**

The lateral area of the right regular triangular prism is 18 cm^2.Find the total surface area.give your answer in decimal form rounded of to 2 decimal places

**Science help!!!!**

me too

**Science help ASAP**

Hey JM

**College Cal 1**

A farmer wants to fence off a rectangular field of area 15000 square feet using barbed wire fencing. SInce the opposite of the road is a corn-field, he wants a two-strand fence along the road, and one strand on each of the other three sides. What are the dimensions of the ...

**math**

11.40

**Science**

whats the answer?

**aldrabra**

Write a rule for the linear function in the table. x f(x) –4 16 0 0 4 –16 8 –32 A. f(x) = –4x B. f(x) = x + 16 C. f(x) = 4x D. f(x) = -1/4x

**science**

pressure

**Can someone check these answer for me?**

anon I got a zero and I hate your guts

**math**

how much money do I need to deposit today to end up with 13000.00 in 3 years with interest rate 6.5

**Math help please**

1. c 2. c 3. a 4. d

**7th grade pre-algebra**

The problem is a(a-c)=23. Solve for c if both a and c are positive numbers. Thanks

**5th grade Math**

C is the correct answer because there are 96 more students than there are tickets.

**Chemistry**

lol

**Psychology- the Science of the Mind**

A reflex, like automatically removing your hand from a hot stove, involves pain message sent to the spinal cord by___neurons, while the movement of your hands is controlled by____ neurons. A. somatic ;sensory B. sensory; motor C. motor; sensory D. somatic; sympathetic

**math**

The first term of a geometric sequence is -2 and the common ratio is 3. What is the 12th term of the sequence?

**Physics**

Where is your units???

**ECU**

that would be c

**Math**

Well Jaz 15% gose over 100 so but 42 as a fraction at the bottom and then multiply 42x15=630 and divide it by 100 and you get $6.30 so you tip the waiter $6.30

**Math**

The height of a parallelogram with an area of 300 square yards and a base of 15 yards and 1 more question A rectangle has verticles W(2,3) X (2,6) Y(7,6) and Z(7,3) Describe how to find the side lengths of the rectangle without graphing

**math**

where did the 2 come from ?

**chemistry**

When the concentration of CH3Br and NaOH are both 0.150M, the rate of the reaction is 0.0020M/S. (a) What is the rate of the reaction if the concetration of CH3Br is doubled? _______________M/s (b) What is the rate of the reaction if the concentration of NaOH is halved? ...

**Math**

A tree is 15 ft tall. It casts a shadow 20 ft long. an 8 ft elephant approaches. how long will the elephant's shadow be?

**software**

The questions ask List four major functions of an OS. My answer: Function 1: Provide a user interface Function 2: Manage files Function 3: Manage hardware Function 4: Manage applications Is my answer correct?

**Software**

So my answer is correct?

**Software**

The questions said List four major functions of an OS? The answer i put was Function 1: Provide a user interface Function 2: Manage files Function 3: Manage hardware Function 4: Manage applications Is my answer correct?

**Software**

Is that correct answer for question?

**Software**

How can you add a program icon to the windows 7 taskbar so the program can quickly be launched at any time?

**Statistics**

Can you explain confidence intervals as it relates to the results of this obesity study? Results. Of 3069 sampled students, 2681 (87%) were measured. The prevalence of overweight was 43% (95% confidence interval [CI] = 39%, 47%), more than half of whom were obese. Overall ...

**Finance**

Heinz Corporation bonds carry a coupon of 8% and will mature in 5 years at $1,000. Newly issued 5-year bonds with similar characteristics are yielding 4%. Calculate today's market price of the Heinz bond. Compute your answer, submit all your work, then answer the following...

**Algebra 2. Please help ASAP**

The pH of a juice drink is 3.8. Find the concentration of hydrogen ions in the drink. A) 3.8 B) 10^-3.8 C) 1.6×10^4 D) 1.6×10^-4

**Programming Languages- NEED HELP!!**

My teacher said this is not the right. Were doing Raptor Program.

**Programming Languages- NEED HELP!!**

Create a program that determine the shipping cost for an order based on the following table: From $0.00 $20.00 $50.00 $75.00 To $19.99 $49.99 $79.99 $1000.00 Price $2.95 $3.95 $4.95 Free

**physics**

D)

**math**

15 x w + 51 =105 +51 ?