Friday

April 18, 2014

April 18, 2014

Total # Posts: 392

**College Physics **

A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m. While she is in contact...

**College Physics**

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the booster rockets no l...

**College Physics **

Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by...

**Physics (Help Please)**

Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by...

**Physics (Help Please)**

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the booster rockets no l...

**Physics (Help please)**

A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m. While she is in contact...

**math**

I am the greatest common factor of three numbers. Their sum is 36. The largest number is twice the smallest and the middle number is the mean of the other two. What are the three numbers? What number am I?

**Math**

One side of a triangular banner is 1 ½ times longer than the second side and 2 cm shorter than the third side. The perimeter of the triangle is 98 cm. How long is the shortest side?

**finance**

Texas Wildcatters Inc. (TWI) is in the business of finding and developing oil properties, and then selling the successful ones to major oil refining companies. TWI is now considering a new potential field, and its geologists have developed the following data, in thousands of d...

**social studies**

In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. Which contributed the most to San Francisco's population change? (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The Trail o...

**Social Studies**

1.a 3.d 5.a

**Social Studies**

please help me! I need the answers! I'm desperate. PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

**Social Studies**

1.b 2.a 3.a 4.d 5.c

**LANGUAGE ARTS UGRENT!!! (Check Answers)**

1.b 2.b 3.b 4.b

**Science**

In a hypothetical experiment, the blood flow between two dogs is joined and one dog is stressed so that its heart rate goes up rapidly. What will happen to the heart rate of the second dog? a) It will remain calm because the heart rate is determined intrinsically in each heart...

**math**

i need all the answers

**math**

Help me please!

**math**

1. Which angles are adjacent angles? (1 point) ∠GBM and ∠FBC ∠CBX and ∠FBC ∠XBG and ∠FBC ∠MBY and ∠FBC 2. The measure of ∠3 is 101°. Find the measure of ∠1. (1 point) 101° 106° 74° 79° 3. Is line l...

**physics**

Heather and Matthew walk eastward with a speed of 0.76 meters per second east. If it takes them 50 minutes to walk to the store, how far have they walked? Answer in kilometers

**Math**

You are in charge of making punch for an upcoming school dance. The punch recipe makes 5 cups of punch by mixing 3 cups of cranberry juice with 2 cups of apple juice. What is the ratio of cranberry juice to apple juice?

**English**

Thank you!

**math ugh.**

ohhh

**math ugh.**

but how do u get 11 / 20

**math ugh. **

at a small private collage, 9/20 of the students are female. there are 2160 female students, then how much are male?

**sociology**

Which concept is stressed by symbolic interactionists?

**sociology**

Micah is studying child behavior in playgrounds throughout the world. He wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. Which approach is Micah is using?

**sociology**

In what way were Karl Marx and Charles Wright Mills alike in their thinking and understanding of society?

**economics**

Is your consumer behavior influenced by advertising or the news? Discuss one or two examples of media that have influenced your desires or affected your consumer choices

**economics**

Give an example of a fairly major purchasing decision you've made in your lifetime. How did you justify the purchase? How did you prepare for it financially once you decided to make the purchase?

**physics**

a loaded cart, mass220-kg is pulled across the ground with the force of300n acting at angle 37 degree with the horizontal. how much work is done in moving the cart 20m?

**MATH - HELP PLEASE!!**

THANKS KEN!

**Physics**

The electric potential inside a charged spherical conductor of radius R is given by V = kQ/R, and the potential outside is given by V = kQ/r. Using Er = -dV/dr, derive the electric field inside and outside this charge distribution.

**chemistry Emergency TEST**

I was able to solve the frist one.Some of problems come when iam finding the limiting reactant and decompisition.

**chemistry Emergency TEST**

1.How many moles of sodium oxide are produced when3.9 moles of sodium combine with excess oxygen. 2. Sodium chloride decomposes into elemental sodium and elemental chlorine.How many grams of chlorine will be produced if 39.4 grams of sodium chloride decomposes 3.If 6.7 moles o...

**physics 112**

what is meant by a change in temp of 1 degree celcius on the scale of a platinum resistance thermometer

**Physics**

A 75.0kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 4.5m starting from the rest, its speed is 6.0m/s. Find the magnitude of the net force on the bobsled.

**Alegebra 1 **

(1,3) (-3,-5)

**Math**

What is the next number in the pattern 20,000;4,000;800;160;____

**Math**

11,310

**Physics**

Mathematically determine the resultant force if two forces A and B act on an object. Force A is 85N and is at an angle of 20• to the horizontal. Force B is 125N and is at an angle of 60• to the horizontal.

**Geography(Eighth Grade)**

How did Europeans feel about Columbus's first voyages to america? Were they happy because they found new land or?

**Science**

Can you check my answers for me? The answers I picked have a check mark next to them. Thank you. 1. Darwin’s theory of evolution by means of natural selection proposes that changes happen from generation to generation from ____________ of an organism to the environment. (...

**Math**

Create an addition word problem and a subtraction word problem using fractions. Show how to find the solution to each problem. Once you find the solutions to your problems, rewrite the solutions as either a terminating or nonterminating decimal.

**Finance**

Suppose that five years ago Cisco Systems sold a 15-year bond issue that had a $1,000 par value and a 7 percent coupon rate. Interest is paid semiannually. a. If the going interest rate has risen to 10 percent, at what price would the bonds be selling today? b. Suppose that th...

**physical scinsce**

A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by 1000N. How many kg of ex...

**physical scinsce**

A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by 1000N. How many kg of ex...

**physical**

A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by 1000N. How many kg of ex...

**physics**

How far away did the ball land from the table? t=D/S t= 1.2m÷2m/s t= 0.6 s D=1/2 at^2 D=0.5*(9.8 m/s/s) * 0.6^2 D= 4.9 m/s/s * 0.36 D= 1.764m rounded to sig. figures: 1.8 m

**physics**

How far away did the ball land from the table? t=D/S t= 1.2m÷2m/s t= 0.6 s D=1/2 at^2 D=0.5*(9.8 m/s/s) * 0.6^2 D= 4.9 m/s/s * 0.36 D= 1.764m rounded to sig. figures: 1.8 m

**math**

a fencing company was asked to enclose three gardens with wire fences: a rectangular garden with a length of 270 meters and a width of 1123.62 meters; a square garden with a side length of 657.955 meters; and a rectangular garden with a width of 35 meters and a length that is ...

**Financial management**

Im having a little trouble can someone please help me. Im not sure if my answers were right or what the rest would be. 1. _________C__________ is the interest rate in which NPV equals zero. a. Required Rate of Return b. Annual percentage rate (APR) c. Internal Rate of Return ...

**CRITICAL THINKING**

Sorry

**CRITICAL THINKING**

How do you apply critical thinking to someone's else writing?

**5th grade math**

the points that amelia scored for each game are shown 325, 198, 262, 301, 275, 229 after her seventh ga, the range of her points was 129 points how many points did she score in the seventh game

**math**

colin is buying dirt to fill a garden bed that is a 9 foot by 16 foot rectangle. if he wants to fill it to a depth of 4 inches, how many cubic yards of dirt does he need? if dirt costs $25 per yard, how much will the project cost?

**Science**

The wood floated because it is less dense than water.

**American Literature**

wwho love it and understand it are the people who own it—for a little while”

**Electronics**

Can you help with questions that have diagrams you must use?

**Math**

Simplify with only positive exponents: (v^-1/2t)^-2(t^2/v^-2)^-3

**calculus**

Simplify with only positive exponents: (v^-1/2t)^-2(t^2/v^-2)^-3

**science**

how far will 350 jules raise a block weighing 7n

**world history**

its a

**calculus**

I just cannot get this one. I think I have to do something with log but that's as far as I can go. 5^x=100

**Chemistry**

When one of the following substances is dissolved in water, the only positive ions in the solution are hydrogen ions. NaOH NaH H2S Nh3

**Chemistry**

When one of the following substances is dissolved in water, the only positive ions in the solution are hydrogen ions. CH3OH LiOH PO4 -3 CO 3 -2

**Chemistry**

What species is classified as an Arrhenius base?

** life orientation**

Answers

**Algebra**

3/16=h/2 what is the value of H

**Chemistry**

Zinc sulfide and oxygen gas react to form oxide and sulfur dioxide. Determine the amount of ZnO that should be produced in a reaction between 46.5 g of ZnS and 13.3 g of oxygen. What is the mass of the xs reactant? Please show work

**math**

how do i write 94.6 as a fraction

**spanish**

is Ella bebe nunca cafe. grammatically correct

**Physics**

A stone is whirled at the of a rope 20cm long making 5 complete revolution in 2seconds.calculate the angular velocity and the linear speed and the distance covered in 10seconds.

**Algebra**

Flying with wind, a plane flew 800 miles in 5 hrs. Flying against the wind, the plane flew the same distance in 8 hrs. Find the still air speed and wind speed.

**math**

Explain why 0.7=0.70.

**math**

Explain why 2tenths is larger than 2 hundreths.

**math**

Explain why 0.7=0.70.

**s.s**

it is tea

**math**

Explain why one column in a hundredths grid is equal to one column in a tenths grid?

**math**

i am a number between 20 and 30. when u divide me into 6 equal groups, there is an even number in each group and 2 are left over. what number and I

**Math**

3(x+5)=3x(x+15) what math property is this

**English **

what is immperative sentence and interrogative sentence

**math**

The mass of a bag of sand was 2.95 kilograms when it was 2/3 full. When 1/6 of the sand was removed, the mass of the bag of sand became 2.325 kilograms. Find the mass of the empty bag in kilogrmas. Help!

**art**

This type of artwork can usually be found on buildings or other public property. (1 point) * scraffito * intaglio * graffiti * graphics

**Math**

Find the LCM. 1. 20, 36 * 720 * 180 * 90 * 45

**Engineering Statistics**

"A study has shown that 20% of all college textbooks have a price of $90 or higher. It is known that the standard deviation of the prices of all college textbooks is $9.50. Suppose the prices of all college textbooks have a normal distribution. What is the mean price of a...

**Math**

Which of the following is equivalent to (2x-3)^2=25 ? A) 2x - 3 = 5 B) 2x - 3 = -5 C) 2x - 3 = 5 and 2x - 3 = -5

**MATH**

WHAT IS THE CORRECT PROPERTY OF MATH FOR XY=YX

**Chemistry**

#2 is D,and all the other answers you have are right..just took test..

**Geometry**

If the rule (x, y) ¡ú (x + 3, y ¨C 3) is applied to the original triangle, give the coordinates of and draw the image. Show your work for calculating the coordinates of the resulting image.

**physics**

A jet plane lands with a speed of 110 m/s and can decelerate uniformly at a maximum rate of 4.1 m/s2 as it comes to rest. Can this plane land at an airport where the runway is 0.80 km long? Answer this by calculating. Answer in units of km

**social studies**

name all the states that have gulf of mexico coastline.

**Math**

are u sure about this

**math**

Please help HM

**Math (Ms. Sue Please Help)**

Determine whether the following statement makes sense or does not make sense, and explain your reasoning (modified from true/false format of text): If f(x) = 3x, then f^-1 (x) = 1/3x A) This makes sense because the inverse would divide by 3 to "undo" the multiplicati...

**Algebra (please help)**

Determine whether the following statement makes sense or does not make sense, and explain your reasoning (modified from true/false format of text): If f(x) = 3x, then f^-1(x) = 1/3x A) This makes sense because the inverse would divide by 3 to "undo" the multiplicatio...

**Algebra**

f(g(x)) =. Does this make sense or not? A) This makes sense because f(x) = x^2 and g(x) = x + 4 so putting in x^2 for x into g gives us x^2 + 4. B) This does not make sense because the input would first go into g, giving x + 4. Then x + 4 would be the input to f, giving (x+4)^2.

**physical science**

A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by 1000N. How many kg of ex...

**Biology**

What are the advantages of a Co-repressor?

**SpanishPlease check**

I have to correct these sentences Is this correct? 1.Mi amigo viene de el cine. Mi amigo viene del cine. 2. Yo pono la mesa. Yo pongo la mesa. 3. Yo traer los libros. Yo traigo los libros. Thank you

**Spanish-Please recheck from last week**

I asked this question last week how to day I plan to go to the movies tomorrow night and you said to correct "a la" and "de el" to "al" or "del"-Is the first one correctly written now? Thank you I don't think it is the second one 1.Y...