physics please HELP !

128,227 results, page 83

physics

1.when a person diet's is their goal to lose weight?explain. 2.a man enters an elevator holding 2 boxes one on top of the other the top box has a mass of 6.0kg,the bottom box has a mass of 8.0kg. the man sets the 2 boxes on a metric scale sitting on the floor when the elevator...

Physics 152

I was able to come up with the answers through trial and error, and the answer for the charge +q makes sense, but I don't understand why the answer for the -q is correct. Please help. A positive point charge +q1, a second point charge q2 that may be positive or negative, and a...

Physics**

1) Assume that you have two objects one with a mass of 10 kg and the other with a mass of 15 kg each with a charge of +3.0x10^-6 C and separated by a distance of 2 m. What is the electric force that these objects exert on one another? 2) Determine what happens to the electric ...

Physics***

1) Assume that you have two objects one with a mass of 10 kg and the other with a mass of 15 kg each with a charge of +3.0x10^-6 C and separated by a distance of 2 m. What is the electric force that these objects exert on one another? 2) Determine what happens to the electric ...

As Physics

Motion and Projectiles Homework-Due tommorow Extended Writing Task: Freefall Two identical steel balls are released from rest above cylinders containing oil as shown in the diagram below.The balls travel vertically until they reach the bottom of the cylinder. The graph below ...

Physics

The 1.1 kg physics book is connected by a string to a 250 g coffee cup. The book is given a push up the slope and released with a speed of 2.9 m/s . The coefficients of friction are μs =0.50 and μk =0.20. What Distance does it travel up the slope? I drew a free body ...

chem/DrBob22

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...

Statistics PLEASE help

I need help for a physics error analysis assignment and I have no background understanding whatsoever of statistics since I've never taken it and it all seems so foreign to me without any teaching. Can someone please help me with these questions? 1) One commonly used method is...

Physics

(a) Determine the amount of work (in joules) that must be done on a 104 kg payload to elevate it to a height of 993 km above the Earth's surface. ______ MJ (b) Determine the amount of additional work that is required to put the payload into circular orbit at this elevation. ...

2 balloons and a doubled distance (physics)

EARLIER SOMEONE POSTED: "Two like-charged balloons, placed at a distance of .5 meters, experience a repulsive force of .32 N. What is the force if the distance between the two balloons is doubled? If you use Coulomb's Law, the equation used to find .32 N was Force = the ...

English

Please help with this question that has been bothering me! I take bio college class and we have graduate/student assistant for labs & when taking an exam. The professor is never there during those sections.Due to my low exam results,I feel I'm not being graded on fairly ...

Physics

n the figure take q1 = 22uC and q2 = 20u. The force on q_1 points in the - x direction, What is the magnitude of the force on q_1? q3 = 20uC. I don't know where to start, can someone help me? Responses Physics - bobpursley, Thursday, August 13, 2009 at 11:21am You have to know...

Physics

In a physics study group, a friend says in a profound tone that light is the only thing we can see. After a few laughs, your friend goes on to say that light is produced by the connection between electricity and magnetism. Is your friend correct? My responds is that my friend ...

physics

how does a vcr work through electromagnetism? please give me some links. http://www.howstuffworks.com/vcr.htm http://en.wikipedia.org/wiki/VCR

Physics

A cylindrical container 1.5m tall contains mercury to a certain depth, d. The rest of the cylinder is filled with water. If the pressure at the bottom of the cylinder is two atmospheres, what is the depth d? I used this equation: 2atm = 1atm + (density of water* gravity* ...

Calc. Help ASAP please

the tuition at a college increases exponentially. the current tuition (let it be t=0) is 36,000 and in 2 years it will be 39,690. a) find a formula to predict the cost of tuition in t years. Is this right? And I'm stuck at the end. 39,690= 36,000e^(kt) 11.025=e^(kt) ln(11.025...

college algebra--Please help Reiny please

You helped me with this question and this is what I got but my Professor says that each x and y intercept needs to have a coordinate. Where did I go wrong?? Can you help me? x^2+y^2+4x+2y-20=0 x^2+4x+4+y^2-2y+1=20+4+1 (x+2)^2+(y+1)^2=25--this is where you helped me. Then I ...

Programming

I must write Analysis, IPOChart, Hierarchy Chart, Flowchart, GUI Design, Pseudocode, and Test Cases for an office supply inventory tracking program Here is the Pseudocode that i have so far: Main Module 1 Declare PensAmount As float 2 Declare PaperAmount As float 3 Declare ...

maths (it's urgent)

the path of the rocket is represented by the equation y= root under(25-x)^2. the path of a missile designed to intrersect the path of the rocket is represented by the equation x = 3/2 root under (y). the value of x at the point of intersection is 3. what is the corresponding ...

Chemistry

Please help me with this chemistry question? I am working on a lab report and I am stuck on this question: Use the concept of stoichiometry to explain why balanaced equations are necessary when performing calculations in chemistry. Propose a situation where precise amounts of ...

6th grade grammar

please see if these are correct THANKS Balloon races have become popular. Several airport's are supporting this race. An area is reserved for spectators. One spectator's son is in the race. The occasion is a photographer's delight. Will all the passengers please come aboard. ...

English

Hello. Please help me with the use of the word "judge". The dictionary defines one of its meaning as "to criticize", but somehow I feel it does not suit the following contex or am I wrong? "The Russian parliament yesterday adopted an anti-gay law. The EU has already judged...

penn foster

im trying to finish these classes soon so i can start college, but honestly they are too complex. and i NEED HELP!!!! I have 1-5 done. 6. In the Mongol Empire, the plague A. provided new oppurtunities for territorial expansion B.ended further expansion C. had no effect, ...

Trigonometry

Could someone please help me out with this? I've read my text book, but can't seem to figure it out. And could you please show me how to do them? The Earth travels in a circular orbit around the Sun at 29.79 km/sec. If the radius of the orbit is 1.496 x 10^8 km, what is the ...

Spanish: Please help

Please help. Thank You. 1. The stem-changers in the current section are similar to those in the previous section except these stem-change "o" to "oe." A.) true B.) false 2. Of the following, which is not a stem-changing verb? A.) almorzar B.) comer C.) volver D.) contar E.) ...

Spanish: Please help

Please help. Thank You. 1. The stem-changers in the current section are similar to those in the previous section except these stem-change "o" to "oe." A.) true B.) false 2. Of the following, which is not a stem-changing verb? A.) almorzar B.) comer C.) volver D.) contar E.) ...

Algebra Please check answers

Could you please check these answers thanks. Directions: Factor each polynomial. If the polynomial cannot be factored, write prime. 1. a^2-16b Answer: (a-16)(a+16) 2. m^2+8m+16 Answer: (m+8)^2 3. 3a^2b+6ab+9ab^2 Answer: Prime 4. 2r^2+3r+1 Answer: Prime 5. z3+6z^2+9z Answer: Prime

Physics, finding harmonics

A tuning fork with a frequency of 440 Hz is held above a resonance tube that is partially filled with water. Assuming that the speed of sound in air is 342 m/s, for what three smallest heights of the air column will resonance occur? Where will the nodes and anti-nodes occur? (...

English

The new drug proved to be highly efective,it has no side effects. A. PROPERLY CONSTRUCTED SENTENCE B. COMMA SPLICE C. LACKS PARALLEL PARTS D. HAS UNCLEAR PRONOUN Please post your answer, and we'll discuss it. A Please check this site. http://ace.acadiau.ca/english/grammar/...

math help please

two cards are dealt in succession from a standard deck of cards. find the probability that the first card is a diamond or a king. probability that the second card is red given that the first card was a heart. if two dice are rolled, what is the probability of rolling at least ...

physics.

resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the voltage across the 10 ohm resistor 4) the ...

MATH

Please someone get back to me! I really don't know how to do this, need as soon as possible. Please help! A rabbit population satisfies the logistic equation dy dt = 2x(10to the exponent 6)y(10to the exponent6)- y; where t is the time measured in months. The population is ...

Physics please check repost

The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.0 x 10^5 Pa, and the horizontal divisions represent 4.5 x 10^-3 m3. The diagram is a upright rectangle divided into small squares (8 up and 6 across). ...

Medical

Can some one please tell me all the: adjectives adverbs conjunctions nouns prepositions pronouns verbs - in this paragraph? please! Thank you. The patient was brought to the operating room and Bier block anesthesia was performed. The right upper extremity was prepped and ...

physics (elastic collision)

A ball of mass .44 kg and speed of 4.5 m/s collides head-on with a .22 kg ball at rest. Assuming perfect elasticity, what is the speed and direction of each ball afterwards? I know that the momentum is conserved here and since I am solving fo two variables, I think I would get...

Spanish: Translate please

Translate these please: una zanahoria una manzana una uva una fresa una zanahoria una manzana unas uvas una fresa una manzana la lechuga una papa una cebolla el refresco el jugo la leche el té Thank You.

Dear Jiskha

Dear Jiskha, I really need help with some things and I am able to help other people with things but every time I try to make a post, it just goes to the current questions page. I believe it is because I was banned again. Please can I have one more chance? I was not really sure...

Physics I NEED HELP!!!

of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 degrees with the vertical. (b...

Physics I NEED HELP!!!

of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 degrees with the vertical. (b...

physics I

A lost shipping container is found resting on the ocean floor and completely submerged. The container is 5.4 m long, 2.3 m wide, and 2.4 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When ...

Check Please(Math)

(-2x^2y)^3*(5xy^3)^2=(-2x^2y)^3 = -8 x^6 y^3 *Please check my work. What did you do with the (5xy^3)^2 part. The first part you did ok. But you can't just throw away part of the equation. I don't get that part.What do I do there.? (5xy^3)^2=25x^2y^6 You did the first part ok ...

Physics

Light of wavelength 630 nm is incident on a long, narrow slit. a)Determine the angular deflection of the first diffraction minimum if the slit width is 0.020 mm. b)Determine the angular deflection of the first diffraction minimum if the slit width is 0.20 mm. c)Determine the ...

Physics

A person of mass 55 kg stands at the center of a rotating merry-go-round platform of radius 3.4 m and moment of inertia 670 kg·m2. The platform rotates without friction with angular velocity 1.0 rad/s. The person walks radially to the edge of the platform. (a) Calculate the ...

Physics

Could someone please review my answers and tell me if I am on the right track? Thank you! A student drove to the university from her home and noted that the odometer reading of her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If the ...

Physics ASAP PLease

A railroad gun of mass M = 2.0 kg fires a shell of mass m =1.0 kg at an angle of theta= 35.0 with respect to the horizontal as measured relative to the gun. After the firing is complete, the final speed of the projectile relative to the gun (muzzle velocity) is v_0 =100.0 m/s...

Physics

A steel bar has a rectangular cross section measuring 1.000cm by 2.900cm and is 8.700m in length. A load of 189000.00N causes the bar to extend 1.500mm. Calculate the stress and strain produced. ANS 1 = kPa (3 decimal places) ANS 2 = (6 decimal places) 1.000cm = 0.01m 2.900cm...

Physics

A steel bar has a rectangular cross section measuring 1.000cm by 2.900cm and is 8.700m in length. A load of 189000.00N causes the bar to extend 1.500mm. Calculate the stress and strain produced. ANS 1 = kPa (3 decimal places) ANS 2 = (6 decimal places) 1.000cm = 0.01m 2.900cm...

Math

A year on Mars is 686 Earth Days. (1) Which is longer, a year on Mars or a year on Earth? (2)By how many weeks is it longer? Submit two answers. Please explain how you got the answers. My 1st answer was Mars the 2nd answer I 82 1/2 weeks. Please help

Math Complicated

Please I am desperate need of help for this symbol. What does the long square root sign mean? Like in √5 + 8 +24 = √37 The square root sign is supposed to go above 5, 8 and 24. What does that mean? Like find the square root of each number? Or…please I need help :(

Physics-Please check

Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced current is greates when: a.Plane of loop makes an angle 45 degrees with the magnetic field b.The plane of the loop is parallel to the magnetic field c.The plane of the loop is ...

Physics waves- check answers please

1. If a bat emits 10 sounds in 5 seconds, what is the frequency of the bat's vocal outbursts (rounded to first decimal place) My answer: 2.0 Hz 2.If one crest has a 3 cm amplitude and interacts with another pulse to produce a crest 8 cm high this demonstration" a) constructive...

Physics - General Physics

An airplane with a speed of 74.5 m/s is climbing upward at an angle of 64.8 degrees with respect to the horizontal. When the plane's altitude is 687 m, the pilot releases the package. (a) Calculate the distance along the ground measured from a point directly beneath the point ...

Physics - General Physics

An airplane with a speed of 74.5 m/s is climbing upward at an angle of 64.8 degrees with respect to the horizontal. When the plane's altitude is 687 m, the pilot releases the package. (a) Calculate the distance along the ground measured from a point directly beneath the point ...

English/Writing

Hi, I am writing a persuausive essay and other than trying to persuade the reader on my topic, I have to have at least 3 arugments against it, which I can defend...My topic is that children that have been raised with music in their daily lives do better in their future years ...

English

Could you please check these few sentences, please? Thank you very much! 1) Can't you say "cheat in the maths test"or is only on possible? She invites me for a walk (is it a mistake? She invited me to go for a walk) 2) She makes a living by teaching. She was sorry (is it ...

Please Help! Need my work Checked! Physics

2) You take the following measurements for the distance a toy car travels in 10 seconds during each 5 trials: 157cm, 175cm, 162cm, 168cm, 187cm. What are the relative uncertainties of the distance and time measurements? Which measurement is the most uncertain? this is what I ...

Math...Applying the Order of Operations

Can you please show me where i'm going wrong? Here's the question: 2(14+35/7) - ((-14 + -35)/-7) A.28 B.31 C.26 D.26 E.38 Here are the rules that apply: Multiplying and Dividing Integers. *If the signs are the same,then give the answer a positive sign. *If the signs are ...

AP Chemistry

(DrBob222 please help me) A sample of 1.97 grams of Z is dissolved into 500 grams of water which is in a styrofoam coffee cup. The temperature is monitored and is found to rise from 25.015◦C to 25.484◦C. What is ∆Hsolution for substance Z? Assume no heat is ...

Calculus POSTS please check

Please check my calculus posts. They are at the bottom. Thanks.

Physics

A storage tank of negligible mass and 30m high is filled with gasoline. Please calculate the following. Use density values found in the book. a) The gauge pressure and absolute pressure at the bottom of the tank. b) The force that acts on a square access hatch at the bottom of...

chemistry - DrBob222

For this question can u please explain steps 3 and 4 4.0 g of ferrous ammonium sulphate, FeS04(NH4)2 SO4 6H20, is used. The oxalate is in excess, calculate the theoretical yield of the iron complex. Can someone please show me how to calculate a question like this please? Thank...

Check my answers please

I posted this yesterday and someone said i did not haveoriginal data but it is in the link. Please take out spaces h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its ...

Math

An object suspended from a spring is oscillating up and down. The distance from the high point to the low point is 30cm, and the object takes 4s to complete 5cycles. For the first few cycles, the distance feom the mean position, d(t) centimetres, with respect to the time, t ...

Physics

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 15.0 m/s. The cliff is h = 66.0 m above a flat horizontal beach. How long after being released does the stone strike the beach below the cliff? I got 3.67 s. With what speed ...

physics

A foam plastic of density of 0.58g/cm^3 is to be used as a life jacket.What volume of the plastic must be used if it is to keep 20percent by volume of an 80kg physics student above water in a lake if the average density of the student is 1.04g/cm^3

Pre calculus

1. Reference angle for -280 degrees? I do not understand why you add 360???? 2. Theta=? If reference angle =60 and theta terminates in quadrant 3. What does terminate mean? Please show work and explain why. My priority is to understand the concept ... 3. Exact value for sec ...

spanish

Could anyone please tell me why these sentences are grammatically incorrect please 1. Queremos nuestros hijos tienen maestros buenos y competentes. 2. Esto requiere el gobierno a gastar más dinero. 3. El que me preocupa es que no tenemos suficiente dinero. 4. Es importante a ...

Physics--Please Help!!

A bullet of mass m=0.060 kg hits a 5.0 kg block with an initial speed of 225 m/s. The block is connected to a spring that is attached to a wall. The friction between the block and the table is negligible. Upon impact, the bullet bounces back from the box with a speed of 75 m/s...

physics

take a satalite going around the earth... what allows us to say net force (radial) = Fg = Fr = ma were the Fg is the force of gravity exerted on the satalite were Fr is radial force and ma is the mass and acceleration of the satalite ok I understand newtons second law but what...

physics

pleaase help me with this, i'm very bad in physics, and i mostly don't understand any of this stuff...can anyone explain as well as show me how to do this Monochromatic light from a helium-neon laser (wavelength=632.8 nm) shines at a right angle onto the surface of a ...

English

Here is the second speech act. Thank you for your cooperation. I also wanted to know if: A) Would you prefer it if we met at six? has the same meaning as B) Would you prefer to meet at six? Is "it" necessary in sentence number 1? Indirect speech: She asked me if I would prefer...

hca210

Please help !! Describe two approches or indicators to measuring patient outcomes. Measuring the quality of care is essential to being able to identify which areas of patient care need improvement .A positive patient outcome is one measurre of quality. What role do health care...

Statistics 2 please give answers to the below ques

According to a study conducted by a statistical organization, the proportion of americans who are satisfied with the way things are going in their lives is 0.82. Suppose that a random sample of 105 Americans is obtained. (Please answer the below and round to four decimals ...

Science

Can you help with this one please? A drop of oil (vol 0.05cm^3) is released on to a calm surface of a pond where it spreads out and covers an area of 40 cm^2. Assume the oil film has uniform thickness equal to the diameter of an oil molecule. Calculate the diameter of an oil ...

English

Can you please help me complete the fill-in-the-blank activity, please? I'm not sure if the rules in America are the same as in England. 1)You can get a part-time job when you are 15 years old. You can ride a 50cc moped when you are 14 years old. You can't leave school until ...

Business

Although debt financing is usually the cheapest component of capital, it cannot be used to excess because Please note that we don't do students' homework for them. Once you have come up with a response to these questions, please re-post and let us know what you think. Then ...

Biology

The gene for red hair is recessive to the gene for black hair.What will be the hair colour of a child if he inherits a gene for red colour from his mother and a gene of black hair from his father?Express with the help of a flow chart..if you can..otherwise can you please tell ...

Physics urgent help please

A rectangular coil 60mm × 40mm with 25 turns is positioned with its longer sides parallel to a long straight vertical wire carrying a current of 6.8A. The coil is placed so that its long sides and the vertical wire are in the same vertical plane, with the wire 40mm away from ...

math

HELP HELP PLEASE The University of Townville gives a full scholarship to any student who scores in the top 4% of students on the SMRT standardized exam. SMRT scores have a mean of 260 and a standard deviation of 22. What score does a student need to attain in order to receive ...

College Physics 2

A parallel-plate air capacitor is made from two plates 0.250 m square, spaced 0.70 cm apart. It is connected to a 140 V battery. a) What is the capacitance? C = 7.90×10−11 F b) What is the charge on each plate? Enter your answer as an absolute value of charge. Q = 1.11...

Physics Helpppp

Q11 a(ii)A sinusoidal carrier wave has frequency 500 kHz and amplitude 6.0 V. It is to be frequency modulated by a sinusoidal wave of frequency 8 kHz and amplitude 1.5 V. The frequency deviation of the carrier wave is 20 kHz V^–1 Describe, for the carrier wave, the variation...

Spanish

Please correct my work please: This is what I'm working on: Command form(imperative mood)negative familiar/polite. I have to change the following affirmative commands to the negative form. (write the word no, the object pronoun(s), and the negative command in the spaces to the...

Physics

Can someone please help me with the following 2 questions? I wasn't sure if I was grasping the whole idea. **Consider a baseball that is caught and then thrown at the same speed. Which case illustrates the greatest change in momentum, which requires the greatest impulse: the ...

physics

using the strap at an angle of 31° above the horizontal, a Grade 12 Physics student, tired from studying, is dragging his 15 kg school bag across the floor at a constant velocity. (a) If the force of tension in the strap is 51 N, what is the normal force on the bag? image (b...

Physics

Three children are fighting over a toy. One child pulls on the toy with a force of 100N at an angle of 37° north of east. The second child pulls on the toy with a force of 200N south. The third child pulls with a force of 250N at an angle of 20° south of west. Watching all ...

Language Art (Please Check)

please check me Consider the characters Doc rabbit,Bruh fox,and tar baby.Which do you think is a real hero? A.Doc rabbit is a real hero because he is smart and knows how to get out of work B.toad is a real hero because he uses his brains to outwit a boastful opponent C.bruh ...

math and physics

i just want to know form where i got on this formula the 4.9t² on this formula s=4.9t²+Vot+h because the book only say that a physics theory shows that when an object is thrown upward with an initial velocity Vo, its approximate height is given by that quadratic function i ...

Physics

Well, I just found out that I failed my physics midterm. I got a 51. Yes I studied but I still don't get the forces and inclined planes. And my parents are going to kill me if they find out. The midterm brought down my grade to a 79!! Any advice? P.S I also got a 71 on my ...

PHYSICS` HELP!! Please

Really lost on how to explain these whether true or false!! HELP! Much appreciated Write True or False. If False, Explain why! 1. In a position vs. Time graph, a line whose slope is negative represents an object that is slowing down. Answer: I circled True but it's not. Can ...

Chemistry

a glavanic cell is set up by connecting the following half-cells together: nickle electrode in nickel nitrate solution and a copper electrode in copper nitrate solution. in which half-cell will oxidation occur? in which half-cell will reduction occur? write the half reaction ...

math

Hi again. I don't understand these two questions so um please help me. Also explain me how to do it. Please 1. An electrician charges $40 to come to your house. She also charges $55 for each hour that she works. The electrician charges you a total of $190. How many hours does ...

PHYSICS

The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 × 10-3 m2. The initial pressure, volume, and temperature of the gas are, ...

Spanish. PLEASE HELP.

I have know idea what the answers are. Please help me. THANK YOU!! 1. Write the verb form for: yo/hacer. 2. Write the verb form for: ellos/hacer. 3. Write the verb form for: nosotros/hacer. Thank You.

English

Could you please check these sentences, please? Thank you. 1) It is advisable for you to do the exercise. 2) It would be better/best if he did the exercise. (but NOT for him to do) 3) It is difficult for him to do the exercise. It is easy for him to do the exercise. 4)I'm ...

vector prob, please help explain.

can someone help me please or explain this better? i'm having trouble. thank you, chelsea Three ropes hold a zeppelin in place, but two of the ropes break. The remaining rope holds the zeppelin with a tension of 255 N at an angle of 40 degrees with the ground due to a wind. ...

Advertising--HBC Company

Okay. I had a sub today, and she said that I have to make an advertisement on the HBC to attract individuals. Some examples she gave to me: -Marvellous goods! -We Want you! -Jobs available for men! Some things I came up: -All types of fur like beaver and buffalo -Stay by the ...

Math/Physics

Thanks in advance, these problems have been stumping me. Please include answers though, I have tried to work it out, but need answers to see where I am going wrong/where I need to go. 1. Determine all solutions for X^4+2-3i 2. Forces of 60 and 100 pounds have a resultant force...

physics

Two artifacts in a museum display are hung from vertical walls by very light wires. Wire T1 is horizontal from the left wall and goes to a center weight of 177N and wire T2 is at a 53 degree angle with the right wall heading from right to left downwards towards the center ...

physics

Two artifacts in a museum display are hung from vertical walls by very light wires. Wire T1 is horizontal from the left wall and goes to a center weight of 177N and wire T2 is at a 53 degree angle with the right wall heading from right to left downwards towards the center ...

AP CHEMISTRY

I really need this please!!!!!!! : write the equilibrium-constant expression and calculate the value of the equilibrium constant for each of the following reactions at 298 K. (a) NaHCO3(s)<--> NaOH(s) + CO2(g) Answer: Keq = PCO2 (b)Value of the Equilibrium Constant: ...

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