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Posts by Edward

Total # Posts: 374

Physics
A 1200 kg car accelerates to the right at 7m/s2 along a special frictionless track. Determine the magnitude and direction of the force the engine exerts to accelerate the car? A wind blows heavy winds into the car's path.As a result the car's acceleration slows to 4.5m...

Physics
15kg block rests on a rough surface (u=.35) a 100N force to the left is applied to the block. what is the magnitude and direction of the net force acting on the block? How quickly will the block accelerate over the rough surface?

Physics
two forces act concurrently on a 5kg block resting on a smooth horizontal surface a 5N force making a 40degree angle with the surface and a 10n making a 20degree angle with the surface. A) Determine the magnitude and direction of the net force acting on a box.

physics
A man in manhattan is told that his destination is 26 blocks east at 30 degree angle uptown from where he stood on houston street determine how many blocks east and how many blocks uptown from where he stood.

physical science
If the earth had twice its present radius and twice its present mass, what would happen to your weight? Explain. What is the relationship between the radius (R) of orbit of a satellite and its period (T)?

physics
Advertisements for A toy balk once stated that it would rebound to a height greater than the hethe height from which it was dropped. Is this possible?

english
can you check my * answer *Edit the following sentences to correct misplaced or awkwardly placed modifiers. 2. Most lions at night hunt for med- size prey, such as zebra. (revised) Lions at night hunt for med-size prey, such as zebra. 3. Several recent studies have encouraged ...

english
Edit the following sentences to correct misplaced or awkwardly placed modifiers. 1. The flood nearly displaced half of the city’s residents, who packed into several overcrowded shelters. *The city's flood displaced half of the residents, who packed into several ...

physics
if a 5microfarad capacitor is charged by a 20volts battery and it is then connected across an uncharged 20microfarad capacitor , find the potential energy

6th grade math
on a map an inch represents 200 miles how far is 3 1/4 inches?

physics
The planet mars has a mass of 6042e23 kg and a radius of 3038e6 m. how much would a 60 kg person weigh on Mars compared to their weight on Earth? How heavy he would feel he weighed in kg on Mars?

Physics
example that show the # part of distance and the # part of displacement can be the same for the same motion

Physics
example that show the # part of distance and the # part of displacement can be different for the same motion

Chemistry
The Answer is c: Ag(s)

physics
A force of 80.0 N is required to pull a 25.0 kg wooden toy boat at a constant velocity across a smooth glass surface on Earth. What force would be required to pull the same wooden toy boat across the same glass surface on the planet Jupiter?

science
Why you think scientists probably want to leave what they do open to revision?

Dynamic Decision
Discuss chaos in health care systems today. In addition, discuss the role of insurance and billing, HMOs, varying drug costs across borders, availability of doctors and nurses, and hospital management complexities. Be sure to support your analyses with excellent supporting ...

math-163
f(x)=1/2^4(x^2-5)(X+1)

algebra
9 1/4

chemestry
show a correct numerical setup for determining how many litters of a 1.2M solution can be prepared with a .50 mole of c6h12o6

english
can somone help me compare and contrast twilight and beowolf? (the characters etc)

physics
A circular coil of 30 turns and radius 7 cm is placed with its plane oriented at 90 degrees to a magnetic field of 0.1 T. the fieldis now increased at a steady rate, reaching a value of 0.7 T after 5 seconds. when emf is induced in the coil

physics
A 2.0 m wire segment carrying a current of 0.60 A oriented parallel to a uniform magnetic field of 0.50 T experiences a force of what magnitude

7th grade social studies.
I need info on life on the early middle ages to write a short story or poem

World History
Some of my points are : lives of the ancient people being horrible and treacherous because of the geographical features of their region, regardless they took advantage of these features and settled near rivers, lakes, or mountains.

World History
Can you write a thesis and introduction paragraph for this question/statement: Discuss how the lives of the peoples of the ancient world were shaped by the geography of their region. Thanks A lot :)

world history
What is the realtionship between Reformation and European dominance in world markets?

Chemistry AP-Density
21.38011111

Chemistry
How much heat is required to melt 75.5g of ice at -25 degrees Celcius, and convert it to steam at 105 Celcius

english
We designed the pages to fit in three, five, and seven-ring binders. is this correct punctuation?

Statistics
If a completion time for a task is normally distributed with a mean of 15 seconds and a standard deviation of 2.5 seconds, what is the probability of getting a time less than 9.7 seconds?

Statistics
132.8460441 Provided your 554 is correct.

chemistry
A volume of 35.0 mL of nitrogen gas was collected over water at 24 degrees C and 99.1kPa. The vapor pressure of water at this temperature is 2.99 kPa. What is the pressure of the nitrogen gas alone?

Writing
Part III: Revision In this section of the final, revise the sentences provided to correct the grammar errors indicated. (In many cases there will be more than one correct alternative to the sentence provided; credit will be given for all correct answers.) Revise the following ...

Physics
A mixture of gasoline vapor and air is placed in an engine cylinder. The piston has an area of 7.4 x 10^-3 m^2 and is displaced inward by 7.2 x 10^-2 m. If 9.5 x 10^5 Pa of pressure is placed on the piston, how much work is done during this process? Is work being done on or by...

Physics
In which of the situations listed below is energy being transferred as heat to the system in order for the system to do work? In which situation is work being done on the system in order for energy to be transferred from the system as heat? a. Two sticks are rubbed together to...

Math
Solve. a+3 less than -12

math
Freddie Fast can make 6 4/5 chairs per hour on a furniture assembly line. Warren Weary makes 4 1/2 chairs per hour. In a 10-hour shift, how many more chairs does freddie make than warren? and if i may i would also like a small explanatation please i just done get it and thank ...

phyics
.65496475

Science
How can I make a 3-d model of the plant and animal cells(Clearly Labeled). Also I can't use food or clay also clay-dough. Plz help

social st.
i wrote this why is it good or not what more does it need

social st.
is this a 6 grade work There is and another part of Indian Culture which is Indian Arts The main theme of Indian art seem to begin emerging as early as the Harappan period, about 2500 BC. Although we're still not sure, some Harappan images look like later images of Vishnu...

Ela
could you give me an conclusion and introduction for ancient india clothing and art plz!!!!! plzplzplzplz!!!!!!!

Science
Engineering Science Project ideas and some thing cool interesting and new not that has been popular as a science project!!!!!!!!!!!!! Plz!!!!!!!!!!!!!!

chemistry
The reaction between 0.0272 g of Mg with an excess of water was carried out in an ice calorimeter. The volume of water decreased by 0.19 mL during the reaction. a) Write the equation that occurs. Is it a redox? b) Calculate the enthalpy of reaction? i have no clue how to ...

chemistry
please do not post questions that involve quiz questions from mc master univeristy

chemistry
The following redox reaction occurs in basic aqueous solution. When balanced with the smallest whole number coefficients, what is the coefficient for OH-(aq)? Mn(OH)2(s) + MnO4-(aq) = MnO42-(aq). 1. ) 2 2. ) 3 3. ) 4 4. ) 6 5. ) 8 the answer i got was 6...but im no 100% sure :S

math
arithmetic sequence b_n=(-2)^(n-1)

ALGEBRA
If a car is traveling at 24 meters per second, at how many kilometers per is it traveling?

Government.
The levl of the nation's debt is: A. Limited by the constitution. B. Always limited by Congress. C. Is not limited by any goverment branch. D. Is not to exceed 10 billion. I know it's not A because my books says that there are no Constitutional limits. I know it's ...

physics
points A {at(2,3)m} and B {at(5,7)m} are in a region where the electric field is uniform and given by vector E=(4i+3j) N/C. What is the potential difference Va-Vb in volts? a. 23 b. 27 c. 30 d. 24 e. 11 i think the formula may be ds=dxi+dyi but even with that im not sure how ...

Math Algebra
I’m working on factoring trinomials of the form ax2 + bx + c & perfect square trinomials. This chapter explains that a further method will be needed to conduct a trial and check process, in which the middle term is the sum of the products. Here’s the problem as ...

Algebra
Find the accumulated value of an investment of $700 at 16%compounded quarterly for 2 years.

math (unanswered, previously posted)
A set of telephone lines is to be installed so as to connect between town A and town B. The town A has 2000 telephones. If each of the telephone users of A were to be guaranteed instant access to make calls to B, 2000 telephone lines would be needed. This would be rather ...

math
33/100

Statistics
Yes please. I think I hit the refresh button while posting. Sorry. Would love to work with you on getting some hints on getting this done.

Statistics
A set of telephone lines is to be installed so as to connect between town A and town B. The town A has 2000 telephones. If each of the telephone users of A were to be guaranteed instant access to make calls to B, 2000 telephone lines would be needed. This would be rather ...

physics
Tangina ano sagot??

vocabulary
TRAILBLAZERS

math
Hey, could I have some help for this? Thanks! Describe a rule for deciding if a number is divisible by three. Consider numbers above 1000 as well.

Math
I need some help please Determine the least four digit number that is divisible by 2,3, and 5. Explain your reasoning. Explain how you know that 123 123 123 900 is divisible by 2,3,5,9, and 10. How do you know that it is also divisible by 6.

Social Studies
What is Cultural Diversity and why is Cultural Diversity necessary in the first place?

Science
What is an example of a solid and a liquid solution

Math- Fractions
fr

math
I need help with partial differences method.

Math (typo in first)
How do I go about tackling this problem? (I made a problem-modifying typo in the first) The American Medical Association wishes to determine the percentage of obstetricians who are considering leaving the profession becaose of the rapidly increasing number of lawsuits against ...

Math (Statistics)
How do I go about tackling this problem? The American Medical Association wishes to determine the percentage of obstetricians who are considering leaving the profession becaose of the rapidly increasing number of lawsuits against obstetricians. How large a sample should be ...

Social Studies
During the cold war, the soviet union and the democracies in the west competerd for influrence in the middle east beacuse of its 1. strategic location and valuable resources. 2. vast fertile farmlands and rivers 3. large well-educated population 4. industrial potential 2 is ...

Maths
Solve this equation fo rx in the interval 0<=x<=360 3sinxtanx=8 I would do it this way: sinxtanx = 8/3 sinx(sinx/cosx)=8/3 sin^2x/cosx = 8/3 (1-cos^2x)/cosx=8/3 cross-multiply 3 - 3cos^2x = 8cosx 3cos^2x + 8cosx - 3 = 0 (3cosx-1)(cosx+3)=0 cosx=1/3 or cosx = -3 the last ...

Math
hollis is paying off 2 student loans. One loan charges 7% interest, per year. The other loan charges 9 % interest per year. He owes $1500 more on the 7% loan than he does on the other. Last year he paid a total of $617.00 in interest. what does he owe on each loan what is 2,...

Chemistry
Why is the freezing point depression of potassium ethanoate greater than that of camphor or urea (in benzoic acid), with equal moles of each? Wouldn't the Kethanoate break up into two ions per molecule?

Physics Question......many thanks
why is it 1/50??

math
because they're equilevant then

Statistics
gg frank

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