Friday

August 1, 2014

August 1, 2014

Total # Posts: 2,151

**English**

Write two examples of complex sentences, the first having the dependent clause appearring at the start, and the second with the independent clause appearing first. Write the sentences so they talk about having tacos for lunch.

**Physical Science**

What becomes of the electric energy provided in electrolysis? In what device is this energy transformation reversed?

**physics**

A 1.20- block of wood sits at the edge of a table, 0.720 above the floor. A 1.20×10−2- bullet moving horizontally with a speed of 750 embeds itself within the block. What horizontal distance does the block cover before hitting the ground?

**physics**

A 1.20- block of wood sits at the edge of a table, 0.720 above the floor. A 1.20×10−2- bullet moving horizontally with a speed of 750 embeds itself within the block. What horizontal distance does the block cover before hitting the ground?

**physic**

A 1.20-{\rm kg} block of wood sits at the edge of a table, 0.720 m above the floor. A 1.20×10−2-{\rm kg} bullet moving horizontally with a speed of 750 m/s embeds itself within the block

**Math**

Which has the largest perimeter, Polygon A or Polygon B? Polygon A is a square (5 cm each side) - Polygon B is 20 sided (1 cm each side).

**Physics**

A block is pushed across a horizontal surface with a coefficient of kinetic friction of 0.15 by applying a 150 N horizontal force. If the block accelerates at the rate of 2.53 m/s2 (squared), what is the mass of the block?

**calculus**

a ball is thrown upward at 96 feet per second from the top of a 100 foot building. 1.when will the ball obtain maximum height 2. when will the ball hit the ground?

**physics**

thats 23 degrees

**physics**

At the base of a frictionless icy hill that rises at 23.0m above the horizontal, a toboggan has a speed of 12.0m/s toward the hill. How high vertically above the base will it go before stopping?

**algebra**

N(x)= -0.4x^2 + 11.2x +10 solve for x

**Chemistry**

If 0.120 moles of water are produced in the reaction H+(aq)+OH-(aq)=H2O deltaH=-56.2kj/mol

**Chemistry**

If 0.120 moles of water are produced in the reaction H+(aq)+OH-(aq)=H2O deltaH=-56.2kj/mol

**Chemistry**

Delta H reaction for the following reaction: C(s)+H2O(g)=>CO(g)+H2(g)

**algebra**

Can anyone solve A= 1/2h(a+b) solve for h

**Math**

A tile is 38 cm long and the space between the tiles is 0.8. How many tiles are required to build a floor 5.82 m long?

**Math**

A tile is 38 cm long and the space between the tiles is 0.8. How many tiles are required to build a floor 5.82 m long?

**physics**

Imgaine that a cart intially moving with velocity V_0, collides with a cart at rest and then the two carts stick together. Find a equation for potential energy in this case.

**chemistry**

What mass of oxygen is needed for the complete combustion of 2.60×10−3 of methane? Express your answer with the appropriate units.

**CHEMISTRY**

What mass of water is produced from the complete combustion of 2.60×10−3 of methane? Express your answer with the appropriate units.

**chemistry**

What mass of carbon dioxide is produced from the complete combustion of 2.60×10−3 of methane?

**social s.**

another word for trail of tears

**CHEMISTRY**

What coefficients are needed to balance the equation for the complete combustion of methane? Enter the coefficients in the order CH4,O2,CO2, and H2O,respectively. Express your answer as four integers, separated by commas (e.g., 1,2,3,4).

**chemistry**

For a week acid whose ionization constant is 1.75 x 10(-5), the pH of its solution is 3.0. Determine its degree of ionization and its percent ionization.

**chemistry**

Write an equation for the hydrolysis of each of the following salt: i) NaCH2H3O2; ii) Na2CO3; iii) NH4Br

**chemistry**

Determine the mass of KHP (molar mas = 204.2 g/mol) that is required to react with 30.0 mL of 1.0 M Na0H (molar mass 40.0 g/mol)if the reaction is NaOH + KHP --> NaKP + H2O

**chemistry**

Account for the increase in reaction rate brought about by a catalyst.

**chemistry**

Explain the difference between the rate of a reaction and its rate constant.

**geometry**

M is the midpoint of AB. AM=5x and MB=3x+4. find x.

**Chemistry**

a titration experiment 20 mL solution of hydrochloric acid required 15.2mL of a .879 M barium hydroxide solution. What was the molar concentration of the HCl solution?

**chemistry**

The energy levels the electron can occupy in the H atom can be calculated using the energy level equation. Calculate the wavelength (nm) of the photon absorbed when the electron goes from a n= 1 energy level to a n= 3 energy level. Express answer in scientific notation. unders...

**Calculus**

Find the indicated limits. If the limit does not exist, so state, or use the symbol + ∞ or - ∞. f(x) = { 2 - x if x ≤ 3 { -1 + 3x - x^2 if x > 3 a) lim 3+ f(x) x->3 b) lim 3- f(x) x->3 c) lim f(x) x->3 d) lim ∞ f(x) x->3 e) lim -∞ f...

**algebra**

Simplify each expression. Justify your steps using the Commutative, Associative and Distributive Properties when necessary 8k2 + 4k - 3k2 + 3^2 - k + 5 Please let me

**algebra**

write an expression that has five terms and simplifies to 5m3 + 4n. Please give me the steps

**Calculus**

f a rock is thrown upward on the planet Mars with a velocity of 7 m/s, its height in meters t seconds later is given by y = 7t − 1.86t^2. (Round your answers to two decimal places.) Estimate the instantaneous velocity when t = 1.

**geometry**

Triangle XYZ above is similar to triangle UVW (not shown). If the length of one side of triangle UVW is 60, then what is one possible perimeter of triangle UVW

**Math **

Would it be plausible for Car B to catch Car A within .5 mile?

**Math **

Car A is travelling at a constant speed of 100mph at the time it passes a stationary vehicle (Car B). If the Car B hopes to catch Car A within a mile, how fast must Car B travel? Assume Car B can accelerate from 0-60mph in 6 seconds.

**Chemistry**

What are the molecular and net ionic equations for potassium chloride + ammonium phosphate

**Chemistry**

How many number of ions of each type are present in the following aqueous solution? 113 mL of .490 M aluminum chloride.

**Math**

12r-4r=48 What is r?

**math**

construct-angle-f-so-that-m-angle-f-equals-2-m-angle-c

**budgeting**

Whats the answer please.

**physical geology**

Select a city or region that is faced with one of the following issues: o Saltwater invasion in coastal wells o Depletion of an aquifer for drinking or agricultural water o Subsidence associated with water pumping o Depletion or pollution of surface water from human use o Land...

**MATH-**

A ROCK IS DROPPED INTO A DRY WELL. THE TOTAL TIME TO REACH THE BOTTOM NAD FOR THE SOUND TO TRAVEL BACK TO THE TOP IS 6.7 S. WHAT IS THE DEPTH OF THE WELL TO THE NEAREST FOOT.

**physics**

Two cars are initially moving at constant speeds of 50 m/s (first car) and 30 m/s (second car) along a straight track with the first car being behind. At a certain point (e.g. point A) on the track the first car overtakes the other one. At this very moment of time the first ca...

**Physics**

Two students are on a balcony 24.9 m above the street. One student throws a ball, b1, vertically downward at 19.6 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed. The second ball just misses the balcony on the way down. (a) Wh...

**earth**

Compared with the strength of Earth's gravity at its surface, how much weaker is gravity at a distance of 11 Earth radii from Earth's center?

**ivcc**

What is the magnitude of the apparent weight of a 76 astronaut 3200 from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.6 ?

**Chemistry**

How many moles of Io3 are present in a 100mL solution containing 1.390g of KIO3

**Science**

How many moles of Io3 are present in a 100mL solution containing 1.390g of KIO3

**chemistry**

What is the mass of 1.2 grams of oxygen if it occupies a volume of 500 cubic centimeters at s.t.p?

**algebra**

Explain how to find the sum using game chips, then give the answer 8+-10

**sociality**

what are the dimentions of cultural diversity?

**science**

Pure gold has a density of 19.32 g/cm3. How large would a piece of gold be if it had a mass of 483 g?

**algebra**

= 25/12 x (-7) = -175/12 = -14.583333

**physics**

a uniform ladder 16 m long weighing 80 N leans against a smooth vertical wall, making 30 degree with the wall. Find the thrust of the wall, and the force of the point on the ground.

**statistics**

The scores on the final exam in a course have approximately a bell-shaped distribution. The mean score was 72, the highest score was 99, and the lowest score was 41. Use the value of the range (58) to estimate the value of the standard deviation. (Round your answer to the near...

**geometry**

there for B and C is 18

**geometry**

i think you have your nummbers mixed up for its not posible to have A and C shorter then A and B since A and B are part of the line

**physics**

1. A ball rolling on a platform at 4 m/s rolls off of the platform at 4 m/s and hits the ground 8 m from the base of the platform. a. How long does it take the ball to hit the ground? b. How high is the platform?

**physics **

a car traveling 7.0 m/s accelerates uniformly at 2.5 m/s squared to reach a speed of 12 m/s. how long does it take for the acceleration to occur?

**finance**

You borrow $185,000 to buy a house. The mortgage rate is 6.5 percent and the loan period is 32 years. Payments are made monthly. If you pay the mortgage according to the loan agreement, how much total interest will you pay?

**MATH**

Triangle T has vertices A(-9, 10)B(1,0)and C(5,4). Points A, B, and P(also on th xy plane) form a triangle that is congruent to triangle T. Find all the possible coordinates for P.

**Ottawa University **

Triangle T has vertices A(-9, 10)B(1,0)and C(5,4). Points A, B, and P(also on th xy plane) form a triangle that is congruent to triangle T. Find all the possible coordinates for P.

**brain teaser**

Bono (1) walks over with Edge (2), 2 minutes, Bono walks back, 1 minute (3 total), Larry (10) and Adam (5), walk across, 10 minutes (13 total), Edge Walks Back, 2 minutes (15 total), Edge and Bono walk back, 2 minutes (17 total)

**science**

How do you calculate the gravity of an object? equation needed h=1/2 gt^2 Solve the equation for g; g=2h/t^2 Set height is 2 foot, dropped small object from 2ft, timed at 0.3 seconds. Calculate the gravity of the object. Is this right? 2=1/2*9.8 t^2 t^2=2*2/9.8=0.40 t=0.40^ An...

**science**

Simpson drives his car with an average velocity of 48.0 km/h to the east. How long will it take him to drive 144 km on a straight highway?

**science**

It take you 9.5 min to walk with an average velocity of 1.2 m/s to the north from the bus stop to the museum entrance. What is your displacewment?

**scientist**

Which of the following BEST describes the theory of natural selection?

**Math**

How many two block towers can you make from: 1 black block,1 red block, and 1 blue block? Please explain.

**Math**

I have a shirt, a skirt, a blouse and a pant. How many different outfits can I make?

**math**

a(1,7),b(-3,1) coordinates of missing endpoint if b is the midpoint of ac

**5th grade math**

.4 equals how many hundreths? .07 equals how may thousandths? Do you just multiply the .4 by 100 and do you just multiply the .07 by 1000?

**Science**

Two tugboats are towing a ship. Each exerts a horizontal force of 5 tons and the angle between their towropes is 90°. What net force is exerted on the ship?

**Physics**

A child bounces a 55 g superball on the side- walk. The velocity change of the superball is from 22 m/s downward to 14 m/s upward. If the contact time with the sidewalk is 1 800 s, what is the magnitude of the average force exerted on the superball by the sidewalk? Answer in u...

**statistics**

You have been approached by the editor of gentlemen's magazine to carry ot a research study. The magazine has been unsuccessful in atracting shoe manufacturers as advertisers. When the sales force tried to secure advertising from shoe manufacurers, they were told men's...

**physics**

7

**trig**

A ferris wheel with a diameter of 100 feet rotates at a constant rate of 4 revolutions per minute. Let the center of the ferris wheel be at the origin. 1. Each of the ferris wheel's cars travels around a cirlce. a) Write an equation of the circle where x and y are measured...

**Algebra**

T=6+20/n+2. Solve please

**math**

given the function f(x)= x+2, find each of the following f(7), f(-6), f(0)

**Math**

Please factor X^2+3x+2

**Math**

How do I solve X^2+3x+2

**Math**

X^2+3x+2

**Algebra**

Maria bicycles 5 km/h faster than Robert. In the same time it takes Robert to bicycle 60 km, Maria can bicycle 75km. How fast does each bicyclist travel?

**math**

none of ur business

**math 209**

The perimeter of a rectangle is 44ft the length is 4ft longer than the width. Find the demensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width.

**218**

I have a question for Mrs. Sue. When you used quotations around University when describing Ashford were you trying to suggest something? I am about to finish my accounting degree there and have often wondered if I will fin discrimination because of the stigma that is associate...

**math**

what is a proof of the pythagoarean theorem?

**Geometry**

What is Two capital letters printed in sequence

**Geometry**

M and N are the midpoints of PR(which has a line over PR) and QR(which has a line over QR)respectively. Using graph paper, repeat this process from the last problem using different coordinates for P, Q, and R. How do these lengths MN and PQ compare now? What do you think you c...

**Geometry**

M and N are the midpoints ofandrespectively. Using graph paper, repeat this process from the last problem using different coordinates for P, Q, and R. How do these lengths MN and PQ compare now? What do you think you can conclude about the lengths of these segments? (In your a...

**Geometry**

Use the diagram below for the following question. P(2,1), Q(11,1), and R(8,7) M and N are the midpoints of PR (which has a line over PR)and QR (which has a line over QR) respectively. Find MN and PQ. How do these lengths compare with each other

**Geometry**

Use the diagram below for the following question. P(2,1), Q(11,1), and R(8,7) M and N are the midpoints ofandrespectively. Find MN and PQ. How do these lengths compare with each other?.

**Chem**

What is the wavelenght of a radio station operating at a frequency of 99.6 MHz?

**Chem**

A certain shell is known to have a total of 16 orbitals, which shell is it?

**Chem**

What is the speed of an argon atom that has a de Broglie wavelength of 5.2 pm?

**math**

Find the number of round trip commuter rail tickets sold. 1.Thirty times as many round trip tickets as 12 ride tickets were sold. 2.The total number of tickets sold represented 1440 rides Example of chart below Rides per ticket x Number of tickets sold = Total rides 12 ride ti...

**algebra**

the length of a rectangle is twice its width w. A second triangle, which is 8cm longer and 3 cm narrower than the first triangle, has a perimeter 154 cm. What is the dimension of each triangle.

**algebra **

a boat weighs 1500 lbs more than its motor and 1900 lbs more than its trailer. Together the boat and motor weigh five times as much as the trailer. How much does the boat weigh? Please explain or show how to set up the equation.

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