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Posts by JAY

Total # Posts: 1,680

Physics
Two pellets, each with a charge of 0.80 microcoulomb (8.0×10?7 C ), are located 2.8 cm (2.8×10?2 m ) apart. Part A Find the electric force between them.

algebra
What is the domain for f(x)=8(2)^x

life
what is gay?

Math
Hi Steve Actually the diagram given is already drawn in 2D!. I couldnt figure out that if I think in 3 D then T is above point A and will make a right angle with the lines AB and AC Thanks so much for opening my eyes and helping me visualize the diagram from a different angle...

Math
Thanks Steve, BUt How do you know its a right angled triangle so that you can apply tan

Math
A, B and C are 3 points on the level ground.B is due south of A . The baering of C from A is 085. A vertical mast of height 50m stands at A. The angle of elevation of T from B is 44 and the angle of elevation of T from C is 28 Calculate AB,AC, CB

Algebra
The Community Recreation Center is developing plans for a new sports facility. Community members can submit suggestions for the new facility, along with basic scale drawings of their ideas. Elena wants to include a new 15- by 30-meter basketball court in the athletic center. ...

Civil Rights History
I am stuck on a homework question, and I can't seem to find any information on this. Which organization was considered by many African-American leaders as the most progressive toward civil rights issues in the 1930s? a. Communist Party of the USA b. Republican Party c. ...

Chemistry
How much oxygen (in grams) will form from 44.2 mg of N2O5? 2N2O5(s) ? 4NO2(g) + O2(g) ____× 10^-3(g) O2

PHYSICS
A person with the weight of 691 N stands on a bathroom scale in a motionless elevator. The elevator begins to move and the scale momentarily changes to 499 N. (a) Draw a force diagram of the situation. (b) Create a qualitative vertical equation for this situation. (c) ...

geometry
The foot of a 25-foot ladder is 15 feet from a wall. If the ladder is pushed until its foot is only 7 feet from the wall, how much farther up the wall is the ladder pushed?

math
The box and whisker plot below shows the numbers of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School.

Science
Granite lasts a long time when it is used for building in areas where

math
A triangle has vertices at S(4,1), T(2,-3),and U(4,0). The triangle is translated up 3 units. What are the coordinates of the vertices of the image?

chemistry
A mixture of H2(g) and N2(g) has a density of 0.221 g·L?1 at 301 K and 501 torr. What is the mole fraction composition of the mixture?

Social Studies
It is D

maths
Georgia spent 1÷5 of her money on sweets and used the rest to pay for her savings. What fraction of her money did she pay as saving?

stats
Based on data from a statistical abstract, only about 10% of senior citizens (65 years old or older) get the flu each year. However, about 27% of the people under 65 years old get the flu each year. In the general population, there are 15% senior citizens (65 years old or ...

Chemistry
jk

Exponential
In 1626, Peter Minuit traded trinkets worth $24 for land on Manhattan Island. Assume that in 2014 the same land was worth $4 trillion. Find the annual rate of interest compounded continuously at which the $24 would have had to be invested during this time to yield the same ...

math
The graphs of ? f(x)=?5/3x+9 ? and ? g(x)=2^x?1? intersect at (3,?4) . What is the solution of ?5/3x+9=2^x?1 ? Enter your answer in the box.

math
What is the solution of the system of equations? y=5/6x+1 ?x+y=2 Enter your answer in the boxes.

math
What is the solution of the system of equations? 13x?6y=2 3x?4y=?10 Enter your answer in the boxes.

math
A birch tree that is 4 ft tall grows at a rate of 1 ft per year. A larch tree that is 6 ft tall grows at a rate of 0.5 ft per year. Let the variable t represent time in years and h represent height in feet. In how many years will the trees be the same height? Which system of ...

math
What is the solution of the system of equations? 13x?6y=2 3x?4y=?10 Enter your answer in the boxes.

math
Solve. 2d?e=7 d+e=5 Use the linear combination method. The solution is (3, ?1) . The solution is (4, 1). There are infinitely many solutions. There is no solution.

math
b?

math
Solve. y=x?8 2x+3y=1 use the substitution method. (4, ?4) (5, ?3) (2, ?6) (0, ?8)

PHYSICS
A lemming runs horizontally off the side of a 27.8 m cliff at 1.12 m/s. How long will it take for the lemming to hit the water? How far will it travel in the horizontal direction?

math
What is the y-coordinate of the solution of the system of equations? y=2x+14 ?4x?y=4 Enter your answer in the box. y = ?

physics
If a golden eagle is flying due west with a speed of 32 mph, and encounters a wind that blows it north at 11 mph, what is the resultant velocity of the eagle in m/s? At what angle must the eagle be heading in this direction?

spanish
how would you say, "I like art class" in Spanish?

history
what is a buffer state? a.) a neutral state that helps prevent conflict between warring states. b.) a politically active state that helps stir up regional discord c.)a state that serves to buffer the economic wants of neighboring nations d.) a state that is tougher than others...

math
Help... 1. -1 3/4 writing as the quotient of two integers. 2. -0.73 writing as the quotient of two integers.

Chemistry
Calculate the pH of HCL if you have 10.0g in 5.0L of solution

Calculus
Write an expanded polynomial equation based on the following information. A cubic function with a zero x=3 (with multiplicity 2), a zero at x=2, and a constant term of 18.

Geometry
Angle C and Angle D are supplementary angles. If the measure of Angle D is nine less than twice the measure of Angle C, find the measure of Angle D. PLEASE HELP!!! I have no idea where to even start!

Physics
determine the magnitude and direction of the net force acting on q0 where q0=1uC ,q1=-1uC,q2=2uC and q3=-4

Math-algebra
Find k so that the line through ?(4, 1) and? (k, 3) is a. parallel to 8x+9y=18 y= -8/9x + 8/9 ? b. perpendicular to 3x+4y=8 y= -3/4x +2 I have solved both equation and found the slope, but I am not sure were to go from there. When I tried it the first time I got -17/2 for K. ...

Applied Calculus
From a height of 25 meters a ball is thrown vertically upwards at a velocity of 5 meters per second. a. What time in seconds will the ball reach its maximum height? b. What is its maximum height? c. When will the ball strike the ground? d. What will be the ball’s velocity...

Physics
Sasha is driving straight and notices an antelope in the road a ways off. Determine the stopping distance (from the time she sees the antelope) for her car with an initial speed of 95 km/hr and an acceleration of -4.0 m/s2. Sasha's reaction time to start breaking is 1.0 ...

Physics (9th)
Sasha is driving straight and notices an antelope in the road a ways off. Determine the stopping distance (from the time she sees the antelope) for her car with an initial speed of 95 km/hr and an acceleration of -4.0 m/s2. Sasha's reaction time to start breaking is 1.0 ...

Find the equation of the perpendicular line
Find the equation of the perpendicular line passing through the midpoint of the line segment connecting (?2, 7) and (7, ?1).

find the equation
Find the equation in standard form for the line that satisfies the given requirements. slope ?3, x-intercept (8, 0)

Standard Form
Find the equation in standard form for the line that satisfies the given requirements. horizontal line through (?8, ?9)

Standard Form
Find the equation in standard form for the line that satisfies the given requirements. passing through (1, 5) and (2, 6)

Specify a Period on the graph
y = 2 cos(5?x) .... whats the period?

Calculus
Solve the quadratic equation by factoring. (Enter your answers as a comma-separated list.) 5x2 ? 23x = ?12

Ophthalmic
Where must an object be placed in front of a plus lens in air of focal length 8cm to give an image: i. 25cm behind the lens? ii. 25cm in front of the lens?

Physics
I am hopelessly lost and my physics class is a self-paced 100% online nightmare with no assistance available.

Physics
A helicopter is ascending vertically with a speed of 5.20 m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the helicopter's.]

English
c

math
The discounted price of a book is 85% of the original price. This is a savings of $3. A sales tax of 8% will be added to the discounted price. How much sales tax will be added?

math
Please help!!!!! You earn $240 for your first paycheck. You pay 22% of it in taxes. You decide to put 40% of the remaining money into savings. How much money will you have left to spend? -The amount you pay in taxes is? -The remaining after taxes is? -Write an expression to ...

Math
Jordan's football team gained 12 yards on their first play. On the second play, the team lost 8 yards. Which expression could be used to describe the total yards gained by Jordan's team?

Algebra
debbie anderson cuts a piece of wood measuring 3 3/8 inches into two equal pieces. How long is each piece?

math
Which ordered pair is a solution to the system of equations? {4x+y=2 ?2x+y=5 A. (1, -2) B. (- 1/2, 4) C. (2, -6) D. (7/2, -12)

math
A tree that is 3 feet tall is growing at a rate of 1 ft per year. A 5 ft tree is growing at a rate of 0.75 ft per year. The ordered pair (t, h)(t, h) represents the time, t, at height, h. Which ordered pair represents the year when the trees will be the same height? A. (6, 9) ...

math
What is the fifth term in the arithmetic sequence defined by the explicit formula an=6n?4? Enter your answer in the box. a5=

math
@ms.sue

math
What is the recursive rule for an=2n+11? a1=13;an=an?1+2 a1=13;an=an?1+11 a1=2;an=an?1+11 a1=11;an=an?1+2

math
If f(x) = 3x and g(x) = 3x + 1 + 6. Describe the transformations from f(x) to g(x). A) left 1 and up 6 B) left 6 and up 1 C) right 6 and up 1 D) right 1 and down 6

Literature
It is also important that the verb always agrees with the subject, not the Predicate Noun. In this example, which word is the simple subject? Her award to the students was a virtual high five. Question 4 options: her award students high-five

Literature
D?

Literature
What does this quote reveal about Elie's internal struggle? "For the first time, I felt revolt rise up in me. Why should I bless His name? The Eternal, Lord of the Universe, the All-Powerful and Terrible, was silent. What had I to thank Him for?" Question 5 ...

Literature
Is it A?

Literature
What are the conditions like in the railcars the Jews take to the concentration camps? Question 1 options: A.)They are dirty, Jews are crammed in like animals, there is little food and drink, valuable possessions are taken from them, and then are warned to stay with the threat...

literature
Identify the part of speech for the underlined word in the sentence: After the tiring game, I quickly went to get ice cream and celebrate our hard-fought victory! victory is the one underlined. Question 4 options: A.)noun B.)verb C.)preposition D.)adjective D?

Literature
Thank You!!!!(:

Literature
Why didn't the people of Sighet, Hungary (and other small towns like it) run away or fight back when they were rounded up and sent to ghettos and eventually deported? A.)The didn't believe or understand what they where they were going and what was going to happen. B.)...

language
Hmm.B?

language
Which is expressed with the MOST precise language? A) The desk was rectangular in shape. B) In my personal opinion, the test was easy. C) Heidi has piano lessons every Friday at 6 p.m. D) My uncle believes that in the future to come we will all have robots.

Writing Essay 5th grade
Thank you much for your comment and website you mentioned really helped me to learn and improve my essay. soon I will finish final copy of my essay.

Writing Essay 5th grade
Hello, I got an assignment writing persuasive essay why we should save water? Could plz check my essay and guide me if I need to change anything. Thank You for your help. Why we should save water. (Persuasive Essay) Have you wondered why we should save water and how we can ...

Physics
How much heat does a freezer need to remove from 1kg of water at 40°C to make ice at 0°C? (You will need to use the specific heat of water to drop the temperature first, before trying to make the phase change!) Show your work. Please help! Also, this site isn't ...

Physics
UPDATE: is this correct? c = Q/m?T 330000 = Q/3*0 Q = 330000*3*0 Q = 0

physics
Is the photoelectric effect a direct consequence of the wave character of E.M radiation or of the particle character of E.M radiation?

PHYSICS
Particles called mesons are produced by accelerator beams. if these particles travel at 2.70* 10^8 m/s and live 2.60*10^-8 s when at rest relative to an observee how long do they live as viewed in the laboratory?

math
What is the common difference d of the sequence? ?15, ?4, 7, 18, 29, ...?15, ?4, 7, 18, 29, ... Enter your answer in the box. d= ?

Science. Answer Check
A kitchen ceiling light has five light bulbs on it. When one of the lights goes out, the other four bulbs stay lit. This is an example of a series circuit. True*** False

Science. Answer Check
1. A student studying a circuit diagram of a lightbulb, battery, and a switch correctly identifies it as a closer circuit. In this diagram, The lightbulb would be a. an insulator b. on*** c. disconnected d. off 2. The focus of gravity on an object on the surface of Mars is ...

LANGUAGE
When the Chorus announces the suicide of Queen Jocasta, members of the audience may display an outward pouring of emotions. That process is known as _____. A) Catharsis B) Anagnorisis C) Peripeteia D) Hubris A?

Math
Which ordered pairs lie on the graph of the exponential function f(x)=128(0.5)^x ? Choose ALL correct answers. A. (0, 1) B. (1, 64) C. (3, 16) D. (8, 0.5) B and C? someone please help

Chemistry 1
What theoretical mass of MgO is produced if 0.150 g Mg3N2 is produced by strongly heating a 2.000 g sample of Mg in air?

math
30?

math
What is the average rate of change of the function f(x)=20(1/4)^x from x = 1 to x = 2? Enter your answer as a decimal. Do not round.

Math
Let f(x)=5^x Let g(x)=5^x?7 Which statement describes the graph of g(x)g(x) with respect to the graph of f(x)f(x) ? g(x)g(x) is translated 7 units down from f(x)f(x) . g(x)g(x) is translated 7 units right from f(x)f(x) . g(x)g(x) is translated 7 units left from f(x)f(x) . g(x)...

math
What is the percentage of 237 basketball shots taken, but only 103 made?

physics
What is the kinetic energy gained by a 500kg car accelerating from rest to 27m/s? 1/2=mv^2 > 1/2(500)(27m/s)^2= 182,250J a. What is the power output in watts of the engine that causes this acceleration in 4.00s? 27m/s*4s= 108m/s^2 1/2(500)(108)= 27,000 Watts b. How many ...

PHYSICS
Heat transfer Q and work done W are always energy in transit, whereas internal energy E is energy stored in a system. Give an example of each type of energy, and state specifically how it is either in transit or resides in a system.

Physics
Imagine you are driving a car up Pike’s Peak in Colorado. To raise a car weighing 1000 kilograms a distance of 100 meters would require about a million joules. You could raise a car 12.5 kilometers with the energy in a gallon of gas (if all stored chemical energy was ...

Pre-Calculus
14cos+7=O

Chemistry
what would the concentration of the solution of a sulfuric acid be titration of a 25.0 ml sample of acid required 20.00 ml of a 0.20 naoh standardized solution for it to become neutralized

Maths
The two 4's in the number 420.41 have different values. What is the difference in their values?

Chemistry
What mass of carbon dioxide is formed by the complete combustion of 760 g of ethanol?

Science
How many grams of sugar are needed to make a saturated solution of sugar in 100g of water at 20 degrees Celsius?

math
A function is graphed on the coordinate plane. What is the value of the function when x = ?4? Question 4 options: -4 0 4 5

Math
-5

Math
What is the value g(-3) when g(x) = 2x + 1? a.) 7 b.) -5 c.) 5 d.) -6

georgraphy
In the following passage written by a conquistador in 1540, what can you infer about how sick citizens were treated? “No one who was lazy or tried to live by the work of others was tolerated; everyone had to work. Thus on certain days each lord went to his lands and took ...

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