Friday

July 25, 2014

July 25, 2014

Total # Posts: 1,055

**physics**

Snow is falling vertically at a constant speed of 6.6 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight, level road with a speed of 66 km/h?

**4th grade**

subtractiom\n

**physics**

In the figure below, a stone is projected at a cliff of height h with an initial speed of 45.0 m/s directed 60.0° above the horizontal. The stone strikes at A, 5.20 s after launching. Find the speed of the stone just before impact at A. Find the maximum height H reached ab...

**physics**

What is the magnitude of the acceleration of a sprinter running at 9.0 m/s when rounding a turn of a radius 26 m?

**government**

does the senate pass laws?

**physics(cross products of vectors)**

How do I perform the right hand rule? I'm confused.

**physics**

Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?

**physics**

.02 hr

**physics**

Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?

**Science**

A ball thrown from the edge of a 35m high cliff takes 3.5s to reach the ground below. What was the ball's initial velocity?

**physics**

A lead ball is dropped into a lake from a diving board 5.24 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.86 s after it is dropped. (Assume the positive direction is upward.) ...

**physics**

A lead ball is dropped into a lake from a diving board 5.24 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.86 s after it is dropped. (Assume the positive direction is upward.) ...

**physics**

thanks damon

**physics**

(a) If the maximum acceleration that is tolerable for passengers in a subway train is 1.52 m/s2 and subway stations are located 1030 m apart, what is the maximum speed a subway train can attain between stations? b)what is the travel time between stations? c)If a subway train s...

**Physics**

(a) If the maximum acceleration that is tolerable for passengers in a subway train is 1.52 m/s2 and subway stations are located 1030 m apart, what is the maximum speed a subway train can attain between stations? b)what is the travel time between stations? c)If a subway train s...

**math**

i am working on a math project and i need 10 different representations of the number 256..its due tomorrow

**physics**

The head of a rattlesnake can accelerate 50 m/s2 in striking a victim. If a car could do as well, how long would it take to reach a speed of 78 km/h from rest?

**Physics**

Thank you.

**Physics**

An electric vehicle starts from rest and accelerates at a rate of 3.0 m/s2 in a straight line until it reaches a speed of 26 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. a)How much time elapses from start to stop? b)How far does the vehicle travel...

**math**

Do you mean a bar or a line?

**Physics**

thanks

**Physics**

A car traveling 56 km/h is 21.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.17 s later. a)What was the car's constant deceleration before impact? b)How fast was the car traveling at impact?

**ALGEBRA 2**

a=6,b=8

**math**

I am trying to figure out a lettern pattern and what comes next A,Y,C,W,__ __ ___ I need to explain the rule for this pattern but I am having a hard time

**science**

two tuning forks are struck at the same time. one tuning forkhas a frequency of 20hz while the second tuning fork has a frequency of 226 hz. How many beats will result?

**science**

two tuning forks are struck at the same time. one tuning forkhas a frequency of 20hz while the second tuning fork has a frequency of 226 hz. How many beats will result?

**Mircoeconomics**

A significant difference between monopoly and perfect competition is that: A. free entry and exit is possible in a monopolized industry but impossible in a competitive industry. B. competitive firms control market supply but monopolies do not. C. the monopolist's demand cu...

**Math**

What is the probability that a random sample of 25 swimmers results in a sample mean of 49 seconds or less?

**Mathematics**

Two readings are taken from an aircraft's flight record Time - 08:55 Distance travelled - 957 Time - 09:07 Distance travelled -1083 For the period of time between the two readings, how do i calculate a)the distance travelled in kilometres and b)the average speed of the air...

**chemistry**

Using your knowledge of atoms describe reasons the paper's physical properties are different from the water's physical properties...Please Help

**Chemistry**

"18 M sulfuric acid is need to prepare 250 ml of a 6.0 M solution" - this is an M1V1 = M2V2 type problem. For help have a look at cal.culate.it/dilution. Meanwhile, using chemCal on the iPhone (cal.culate.it/c) the answer is: 83.3 ml

**Chemistry**

"5.61 moles of KCl and 2.11 kg of water?" Well, water has a density of 1g/ml. So, 2.11 kg, is 2.11 liters. Therefore you have 5.61 moles in 2.11 liters. Molar is moles per liter, therefore, 5.61 / 2.11 = 2.66 M. For help on moles and molar have a look at cal.culate.i...

**math**

the formula said 23%

**math**

Multiple Choice: For each of the given family incomes, find the maximum amount the family should be able to spend on a house. Family income: $61,575 a)$163,936.50 b)$153,836.50 c)$153,937.50 Family income: $54,800 a)$138,500 b)$137,000 c)$138,000

**Math**

I can't figure any of these problems out any help would be nice peace. Show all steps used to solve the problem. 1.5n + 6 = -4 3.b/-3+5=7 4.17-x/4=-10 5.If 3a - 9 = 6, what is the value of 4a - 1? 6.

**Bible**

please, can anyone help us?

**Bible**

Here are some descriptions and I need to know the correct character: 1.I complained and became a leper 2.I was able to interpret dreams because God revealed them to me 3. I was Jacob's deceptive uncle 4.I was the father of Israel's second King 5.I stole some gold from ...

**MBA Econ**

Business Week, in an article dealing with management, wrote, "When he took over the furniture factory three years ago...[the manager] realized almost immediately that it was throwing away at least $100,000 a year worth of wood scrap. Within a few weeks, he set up a task f...

**MBA Econ**

Engineers at a national research laboratory built a prototype automobile that could be driven 180 miles on a single gallon of unleaded gasoline. They estimated that in mass production the car would cost $40,000 per unit to build. The engineers argued that Congress should force...

**chemistry**

For information on moles and molar have a look at: cal.culate.it/moles and cal.culate.it/molarity

**science**

a compound that has positive and negative ions in a regular pattern or crystal is an_______________

**spanish sra jmcguin**

1. a toy that I had, when young, was a black bear, that I bought in a store. 2. una amiga de infancia ( literally is: a friend from when I was an infant) however is one of those translations that you adapt to the language, so I would say: Sarah is a friend that I know since ch...

**chemistry help**

Molecular weight os AgNO3 = 169.87 You have 29.66 g, therefore you have 29.66 / 169.87 moles = 0.174 moles. This is in 100 ml. Molarity is moles per liter, so, 0.174 x (1000/100) = 1.75. Concentration of the solution = 1.75 M. Worked out with chemCal for the iPhone/iPod Touch.

**Science (urgent)**

Suppose 13.7kJ of heat are removed from 33.5g liquid sample of ethanol at 26.8^oC. When all this heatis removed from the substance, at what temperature and in what states will you find the substance?

**spanish**

Well for the first part I know you need a verb (ser) so I think son should be in there and i am pretty sure it is mis since lasses is plural. and for the second part you could say you don't like them instead of you don't enjoy them which would be no me gusta.

**Chemistry**

How did you find that value for K?

**Chemistry**

I am not quite sure how to do this problem, it doesn't seem to fit into any of my given equations: A gas has a volume of 35.5L and a pressure of 765mmHg at standard temperature. If the same sample is placed in a 56.0L container and the pressure is measured at 0.92atm, calc...

**microeconomics**

Economyst, why do you bother posting things like "I agree" for mutiple choice questions? Your opinion doesn't matter if "agree or disagree" aren't even options for a viable answer champ.

**college physics**

why nobody is answereing for physics

**college physics**

An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a) the frequency (in...

**spanish to english**

two sports that are needed ball to ball

**5th grade**

T-table Y X 1 -3 3 1 5 5 7 9 a) y=2x-5 b) y=3x-4 c) x=4y-3 d) y=7x-2 which equation does relate to the t-table???

**world history**

what was the document posted to the door of the University of Wittenberg by Marin Luther, that challenged the beliefs of the catholic church.

**world history**

who is the Italian explorer that traveled to the Caribbean on three occasions but was never convinced that he had discovered a new world.

**social studies**

What is china's involvement in the World trade Organization?

**Re - gurublue**

its not writing an essay im having trouble with its writing about baptism in different churches. thanks anyway.

**Re - bobpursley**

i am so sorry to ask again for help but i am struggling a bit with my homework.thanks for finding the website before. i need to write an essay about baptism in different churches. i have used some of the information on the website you kindly found. i was off school when we wer...

**Re - Re teachers**

Thankyou for your help .

**Re - bobpursley**

Sorry typing error. what happens during a baptism in a catholic church ,anglican church ,ortodox church and a baptist church. if there are any websites that explain it simply it will be a great help. thankyou for answering so quickly

**Re - Re teachers**

what has during baptism in a Orthodox church , a baptist church, an anglican church and a catholic church? thanks

**Science**

I am doing a power point on hydraulic brakes but I can't find any diagrams of a simple hydraulic brake that points out all the parts but isn't to hard to understand like th ones in the textbook. Does anyone know of any good pictures on the web? thanks:)

**Chemistry**

correct answer for C is 1.8

**appliance repair**

The rotor in a shaded-pole motor consists of a. coils energized by alternating current b. a short-circuited loop of copper wire c. a permanent magnet d. an iron cylinder

**Science**

How many volts does a Printer have? thanks

**ENGLISH**

What does it mean to vary the sentence pattern within a written work?

**analogies**

STRING

**U.S. History**

What are two things the Cherokee did to fit into Georgia's society

**geometry**

the corresponding sides of similar polygons are ?

**Physics (Motion)**

A ballon rises at 14m/s, a boy in the ballon throws a ball straight up at 24m/s. How much later does he catch the ball?

**Chemistry**

So is the answer 74.2g? Or did i do something wrong?

**Chemistry**

What am i supose to do here? A chemist performs the following experiment: 2FeCl3 + 3CaCO3 ---> Fe2(CO3)3 + 3CaCl If he starts with 105g FeCl3 and excess CaCO3 how many grams of CaCl2 will he obtain? Thanks, ~Nick

**Calc**

Ohhh, thanks Damon!

**Calc**

Can someone help me with this calc problem? lim as x->0 (tan^3 (2x))/(x^3)

**Calc**

Thanks for the help, I know what to do now. :D

**Calc**

Also , another similar question that I am having trouble with is lim as x->0 (tan^3 (2x))/(x^3)

**Calc**

How do I evaluate lim as h->0 [5((1/2)+h)^4 - 5(1/2)^4]/h

**10th grade**

the corresponding sides of similar polygons are?

**Physics**

mass of star = 3.80 x 1030 kilograms mass of planet = 6.35 x 1024 kilograms mass of moon = 7.63 x 1022 kilograms average distance from star to planet = 1.56 x 1011 meters average distance from planet to moon = 4.26 x 108 meters Use the data above to determine the net force exe...

**in/out function rule**

input is 0,1,2,3 output is 5,5.5,6,6.5

**Physics**

The earth orbits the sun once a year (3.16 multiplied by 10^7 s) in a nearly circular orbit radius 1.50 multiplied by 10^11 m. With respect to the sun, determine the following. (a) the angular speed of the earth

**physics**

At t = 0, a particle moving in the xy plane with constant acceleration has a velocity of vi = (3.00 i - 2.00 j) m/s and is at the origin. At t = 2.00 s, the particle's velocity is v = (6.60 i + 4.00 j) m/s. Find the acceleration of the particle at any time t. (Use t, i, an...

**science**

i am having trouble caculating denisty, volume and mass with solid shpes and liquids. can you help

**11th grade math algebra 2 trig**

Dr. Bob222 Iam sorry for my improper use of grammar. (not intended in a smart alike way.) you are buying beads and string to make a necklace. The string coast $1.50; A pack of 10 decorative beads costs $0.50; And a pack of 25 plain beads costs $0.75. You can only spend $7.00 a...

**11th grade math algebra 2 trig**

you are buying beads and string to make a necklace. The string coast $1.50; A pack of 10 decorative beads costs $0.50; And a pack of 25 plain beads costs $0.75. You can only spend $7.00 and you need 150 beads. You wish the necklace to be as decrative as possiable. How many pac...

**11th grade math algebra 2 trig**

you are buying beads and string to make a necklace. the string coast $1.50 a pack of 10 decorative beads costs $0.50 and a pack of 25 plain beads costs $0.75 you can only spend $7.00 and you need 150 beads you wish the necklace to be as decrative as possiable how many packs of...

**11th grade math algebra 2 trig**

i solved for the longer equation and got a=b+4 i put that in the smaller equation and got b-2=b iam confused

**11th grade math algebra 2 trig**

when i solve for the variables i cancel everything and i dont get an answer

**11th grade math algebra 2 trig**

the tens digit of a two digit number is 6 more than the units digit. the number is 36 more than the number when the digits are reversed/ what is the number?

**2nd grade**

Let's see 3+1= 3+2= 3+3= etc...

**English**

In the sentence: After school, we ran to the playground. is After a preposition?

**prefixes,suffixes,roots**

is the word homework a prefix

**7th grade**

what is 2.56 grams equals _____ miligrams

**social studies**

i need help on this west verginia ohio valley river

**home ec**

What should you always use when handling hot utensils?

**english maybe?**

unscramble this word rashpkbao means nosey word

**Physics**

A hot air balloon has just lifted off and is rising at the constant rate of 2.2 m/s. Suddenly one of the passengers realizes she has left her camera on the ground. A friend picks it up and tosses it straight upward with an initial speed of 11.6 m/s. If the passenger is 2.5 m a...

**math**

does anyone know how to do the "train switcheroo" problem?

**social studies**

why was it difficult to gain ratification of the articles of confederation

**english**

Kayla, D is the answer. The correct sentence should be "I credit my success to luck and determination". That answer is probably in response to the question "who do you give credit to for your success?"

**6th grade**

can anyone help me I need to know how to get the prime factorization of a number using exponents

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