physics please HELP !
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physics
Please help me answer the question below and also show equations and steps of how you came to your answer. Thank you 1. The electron in a hydrogen tom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the quantum number n of the ... 
Physics
Please help me answer the question below and also show equations and steps of how you came to your answer. Thank you 1. The electron in a hydrogen tom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the quantum number n of the ... 
GEOMETRY(SURFACE AREA)
Find the surface area and the lateral area of a regular square pyramid with base edge 6 and a lateral edge √34. PLEASE PLEASE HUHU Teach me how and what is lateral edge 
ART PLEASE HELP
Which of the following is a convention that Chinese artists used in paintings? They sketched pencil outlines and then painted over them with black ink. They used one type of brushstroke to give their paintings unity and balance. They painted humans much smaller than the ... 
Physics Please Help ASAP
Suppose the space shuttle is in orbit 390 km from the Earth's surface, and circles the Earth about once every 92.4 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, the gravitational acceleration at the Earth's ... 
Physics ~ CONSERVATION OF MOMENTUM ~
1.) A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward? 2.) A 3.0 kg ball at 3 m/s and strikes a 1.5 kg ball moving at 2 m/s. After the ... 
Physics
A physics teacher (mass = 84.5 kg) is jogging through the woods and runs straight into a large oak tree at 3.5 m/s. Rebound speed is measured at 2.3 m/s in the opposite direction. If the time of contact with the tree is 45 milliseconds, what is the magnitude of the force that ... 
English(PLEASE HELP)
Of Mice and Men. 1. The beginning of the novel includes lots of ladscape info. Describe the setting. (I answered that w/ no problem) Name of place. (I answered this also w/ no problem) What does this place look like? (I don't understand this questionplease help) Time in ... 
biology
Can someone please help me with this question Write out an equation which summarizes cellular respiration as a complete oxidation of glucose and explain when in the process each reactant or procuct is consumed or produced. is at least this equation right? c6h1206+6o2>6co2... 
math
If you earn the grades of 81, 84, 78, 80 in four tests what should your final test’s score be in order to have an average of 81%? .81x400=324 Need a total of 324 pts Test grades so far 81,84,78,80 = 323 324323=1 You need at least one more point to get an 81 Can someone ... 
biology /check please
1What phase are daughter cells in as a result of mitosis? Anaphase 2 During what phase of mitosis do centromeres divide and the chromosonemes move toward their respective poles? prophase 3 Wchich phase of mitosis is the last phase that chromatids are together? anaphase ... 
please help
In cell D21, type the formula to calculate the % change from January to February. That formula is: =(J18E18)/ABS(E18). Format the result in the Percentage style and decrease the decimal places if necessary to round the result to the nearest whole percent (569.46521.07)/abs(... 
PreCalculus/Trig Check please and help
Could someone please check the first one and help me with the second one. I'm stuckThank you 1.What are theroots of the following polynomial equation? (x+2i)(x5)(x2i)(x+8) = 0 I think the roots are 2i,5,2i,8you take out the roots as opposites of what are in the equaion ... 
college physics
My previous question was marked science, but it's specifically a college physics question. Thanks. 
Physics
I have to design a procedure which will allow me to calculate the applied force(thrust) of a stomp rocket. We are allowed to use tools to find measurements. So far, I have calculated the height that the rocket reached (22.5) m using trig. (right angle triangle where one angle ... 
Physics
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.1 kg and the sign has a mass of ms = 16.4 kg. The length of the beam is L = 2.83 m. The sign is attached at the very end of the beam, but the horizontal wire holding up the beam is attached... 
Physics Questions Help Please!
1) The lowest tone to resonate in an open pipe of length L is 1600 Hz. What is the frequency of the lowest tone that will resonate in a closed pipe of length 2L? a) 100 Hz b) 1.60 Hz c) 200 Hz d) 0.800 kHz 2) Which of the following does not increase as a sound becomes louder? ... 
Analytic Geometry
Please help. I've been trying to solve these for more than an hour now but I can't seem to get it. 1) The segment joining (4,7), (5,2) is divided into two segments, one of which is 5 times as long as the other. Find the point of division. 2) The segment joining (4,0), (3, 2... 
physics
A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x axis. The mass is ... 
Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problemsolving tool than a sensemaking tool. ii. It really depends on the formula. Some of them make ... 
Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problemsolving tool than a sensemaking tool. ii. It really depends on the formula. Some of them make ... 
Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problemsolving tool than a sensemaking tool. ii. It really depends on the formula. Some of them make ... 
Physics
The drawing shows a circus clown who weighs 750 N. The coefficient of static friction between the clown’s feet and the ground is 0.630. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the minimum pulling force that... 
PreCal(Please Help)
1) For a person at rest, the velocity v (in liters per second) of air flow during a respiratory cycle is V = 0.85 sin pi(t)/ 3 where t is the time in seconds. (Inhalation occurs when v > 0 and exhalation occurs when v < 0) A) Find the time for one full respiratory cycle ... 
math
.divide AED 1380 among Ahmed John and Babita so that the amount Ahmed receives is 5 times as much as babita's share and its 3 times as much as John's share dear reiny i tried your way of doing it but i am unable to find it please help and my father gave me a different ... 
physics
Some enterprising physics students working on a catapult decide to have a water balloon fight in the school hallway. The ceiling is of height 3.2 m, and the balloons are launched at a velocity of 12 m/s. The acceleration of gravity is 9.8 m/s2 . At what angle must they be ... 
Physics
Some enterprising physics students working on a catapult decide to have a water balloon fight in the school hallway. The ceiling is of height 3.2 m, and the balloons are launched at a velocity of 12 m/s. The acceleration of gravity is 9.8 m/s2 . At what angle must they be ... 
PHYSICS
Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #3: A 30 kg kid on rollerskates is being pushed by his mom with a force of 10 ... 
PHYSICS
A car is traveling around a circular banked road without friction which is inclined at 24 degrees. When the car is traveling at 18.2 m/s around the road, it is moving at the bottom on the incline (inner radius of the road when viewed from an aerial view). When the car is ... 
Literature
Write a proposal suggesting ways for the Odyssey to be made into a movie that's set in the present. Imagine that the readers of the proposal will be the producers of the movie. Explain how you would modernize the epic.' The only things I can't seem to modernize are: He meets ... 
English
Could you please check these three sentences, please? 1) Describe the kind of technique adopted by 20century writers to represent the unspoken activity of the mind. Provide an example of its use from the readings done in class. 2) I had to authenticate all the students' tests... 
Math, Please Help! I don't understand!
Hi guys, please help me!1 I am having a tough time understanding this equation. Best answer goes to the person who shows there work. So... here is the equation... At the half time show, a marching band marched in formation. The lead drummer started at the point, (2,5) and ... 
Physics
Can someone please answer my question on this paragraph from my physics book regarding basic aerodynamics: "Now we consider a spinning baseball moving through the still air. As the ball spins, it tends to drag air around with it. If the streamlines are curved, there are ... 
PHYSICS
A car is traveling 27 m/s when the driver sees a child standing in the road. He takes 0.8 s to react, then steps on the brakes and slows at 8.0 m/s2. How far does the car go before it stops? please help!! Since he's going 27 m/s, and he takes 0.8 s to react, then he goes (27)(... 
Physics (please help)
Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive constants with suitable... 
Math please check answer
please check my answer thanks :) A Pet supply store recorded net sales of $423,400 for the year. The store's beginning inventory at retail was $105,850 and it's ending inventory at retial was $127,020. What would be the inventory turnover at retail, rounded to the nearset ... 
Physics
An electron moves with speed 2.46 x 105 m/s in a 1.39T uniform magnetic field. At one instant, the electron is moving due west and experiences an upward magnetic force of 2.81 x 10−14 N. Caculate the magnetic field (angle). What is the direction of the magnetic field? ... 
physics, please help!
(a) Find the current in each resistor of the circuit shown in the figure byusing the rules for resistors in series and parallel. (b) Write three independent equations for the three currents using Kirchhoff’s laws: one with the node rule; a second using the loop rule through ... 
math ms sue please help, PLEASE!!!!
tori had 20 gumballs in a bag. there were 2 red gum balls, 3 blue gum balls, 5 yellow gum balls, and 10 purple gum balls. what was the ratio of blue gum balls to total number of gum balls? 
Math.
Kate bought 3 CDs and 1 DVD at a store. Her friend Joel bought 2 CDs and 2 DVDs. If Kate spent $20 and Joel spent $22, determine the cost of a CD and DVD. ~Please provide an explanation as well. Please and thanks! 
Math help please ASAP
15. Do the data in the table represent a linear function? If so, write a rule for the function. x –3 –2 –1 0 1 y 1 –2 –5 –8 –11 (1 point) yes; y = –3x – 8 yes; y = 1/3x – 8 yes; y = 1/3x + 8 yes; y = 3x + 8 16. Write a quadratic rule for the data in the ... 
One Ordinary Day by Shirley JacksonPlease, help!
Please, help me! This question regards the shortstory "One Ordinary Day by Shirley Jackson. 1. At which aspects of modern life does this story poke fun? 
physics
A toy car with a mass of 120 g moves to the right with a speed of 0.56 m/s. A small child drops a 25.0g piece of clay onto the car. The clay sticks to the car and the car continues to the right. What is the change in speed of the car? Consider the frictional force between the... 
9th grade math
Hey i need help on my math hw i just don't get it lol please help me! Here the questions Which of the following equations has a graph that is parallel to the graph of 4x2y=7? A:2y = 4x+2 B:74x=2y C:4x+2y=2 D:4x2y=7 E:2y=4x+7 Determine if the two lines 7x+5y=35 and y= 7 ... 
Calculus Please check
Please check my answers and let me know if I did something wrong. Thank you! Find the partial derivative of x, and the partial derivative of y, then the partial derivative of x (1,1), and the partal derivative of y (1,1). f(x,y) = x^4 y^2 x here is what I got @f/@x = 3x^3 y... 
physics, please check work
a 15g bullet is fired at 840 m/s into a penullum consisting of a 24kg bag of sand. If the bag rises to a height of 80cm, how much energy is converted into thermal energy in the bag? Emechanical=Ek + Eg =1/2mv^2 +mgh =1/5(0.015)(840) + 0 =5292J Emechanical =Ek + Eg =1/2mv^2 + ... 
Science/ Landforms, glaciers
Hi, Could you please have a look at the satelite image of Gangotri Glacier? it can be found if you type: " Retreat of the Gangotri glacier" in google images. Please tell me how to measure the amount of advance or retreat of the glacier between 17801935, 1935  1964, 1964  ... 
Physics
A skier with a mass of 56 kg starts from rest and skis down an icy (frictionless) slope that has a length of 70 m at an angle of 32° with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow becomes less icy, and the ... 
AP physics
A NFL punter kicks a ball and lands 52 m away and is in the air for 4.8s. Assume that the ball lands at the same level that is is kicked. a. determine the initial velocity of the punt (magnitude and direction) b. determine the maximum height of he punt c. if the punter kicked ... 
Physics
Two cars approach along icy streets which meet at a right angle to one another. The cars collide and stick together. One car has a mass of 1200 kg and had a speed of 30 km/h in the +x direction before the collision. The second car has a mass of 1500 kg and was traveling in the... 
college health care quality mangement
Please explain three things you have learned about quality and performance . What impact have these three things had on the evolution of health care quality programs? Please substantiate your answers with examples. 
socials
I tried to get this, but really I am unable to can someone please help me a little with this, then maybe I will be able to do the rest. make an organizer to compare government under a republic(the commonwealth), an absolute monarchy, and a constitutional monarchy. Use the ... 
Business mathematics
In an examination of certain number of candidates 18 passed mathematics, 17 passed physics, 11 passed both mathematics and physics, 1 failed both subjects. Find the number of candidates that passed. i. Mathematics only. ii. Physics only. iii. Total number of candidates that ... 
Trigo help!
Ok, i've tried this question, and it brings me to no answers. Please help! Prove the following: secY(1+tanY)=6cosecY my workings: LeftHandSide: secY + tanY/cosY = 1/cosY + sinY/cos^2Y =(cosY+sinY)/cos^2Y = ??? How should i attempt this question?? Am i even on the right track? ... 
AlgebraPlease check my answers
Posted by Jessie on Monday, October 18, 2010 at 3:48pm. I think I figured it outplease check I'm really stuck on these problems Simplify 6xy(3xy)^2? I think this is 2/3xy choices were 2/xy 3xy 2xy 2/3xy Simplify 12xyz^2/8x^2z choices were 3x^2y/2z^3 3x^3y/z^3 3x^3y/2z^3 x... 
AlgebraPlease check my answers
Posted by Jessie on Monday, October 18, 2010 at 3:48pm. I think I figured it outplease check I'm really stuck on these problems Simplify 6xy(3xy)^2? I think this is 2/3xy choices were 2/xy 3xy 2xy 2/3xy Simplify 12xyz^2/8x^2z choices were 3x^2y/2z^3 3x^3y/z^3 3x^3y/2z^3 x... 
Algebra
Please help me with this Algebra problem: The length of a rectangle is 91 less than six times the width of the rectangle. If the perimeter of the rectangle is 84 centimeters, what is the length of the rectangle? Write a system of equations for this situation and find its ... 
Science
Which branches of science do pharmacists need knowledge of to do their job properly? A.physics and chemistry B.biology and chemistry C.chemistry and geology D.physics and computer science Is the answer B? 
Physics 11 URGENT STEVE OR BOB OR ANY PHYSICS Guys
An 42 kmph wind blows towards 215 degrees while a plane heads towards 125 degrees at 152kmph. What is the resultant velocity of the plane? tenks vry much!!!!!!!!!!!!!!!!!!! 
Physics  check answers please
Use g=10 N/kg in this assignment. 1. What is the gravitational energy (relative to the unstretched surface of the trampoline) of the 20 kg ball at its apex 2 m above the trampoline? I got 400 J 2. What is the kinetic energy of the ball just before impacting the trampoline? I ... 
Social Studies
I need help finding a current event. I have looked everywhere and can't find one. It is supposed to be about catholic schools week and has to have happened anytime between last sunday and today. please don't give me one about a certain school. i would like one about the ... 
physics
1)A hiker throws a ball at an angle of 21.0 above the horizontal from a hill 21.0 m high. The hiker's height is 1.750 m. The magnitudes of the horizontal and vertical components are 14.004 m/s and 5.376 m/s, respectivley. Find the distance between the base of the hill and the ... 
Physics
a) Imagine you are swinging on a vine, like a pendulum. If the coefficient of friction between your hands and the vine is 0.5, what must your grip strength be compared to your weight to not slip? b) Research on grip strength shows that males have an average strength of 490N ... 
physics need urgent helpp
i have tried everything, please helpp A snowmobile, with a mass of 530 kg, applied a force of 410 N backwards on the snow. What force is responsible for the snowmobile’s resulting forward motion? (Hint: Think action–reaction force pairs.) If the force of friction on the ... 
physics....again
A typical light bulb is 2% efficient. It means that only 2% of electric energy is converted into visible electromagnetic radiation and 98% is converted into ultraviolet radiation known as heat. Suppose a 100W bulb is turned on for 10h. a. how much energy is used by the lamp? ... 
physics
One particle has a mass of 3.38 x 103 kg and a charge of +7.76 ìC. A second particle has a mass of 8.46 x 103 kg and the same charge. The two particles are initially held in place and then released. The partcles fly apart, and when the separation between them is 0.159 m, ... 
physics
You are designing a hydraulic lift for an automobile garage. It will consist of two oilfilled cylindrical pipes of different diameters. A worker pushes down on a piston at one end, raising the car on a platform at the other end. To handle a full range of jobs, you must be ... 
Spanish
Could you please explain the transalation and how to answer for the first and check my answer for the second. Estás en el correo. ¿Qué hora es? I think this says I'm in the mail and what hour is itbut that doesn't make sense. Please explain how I answer this.Or is this ... 
PLEASE HELP ME SOLVE !!!!!!!!
A mass of 11 kg is placed on a frictionless incline which is inclined at an angle of 69 degrees above the horizontal. It is held in place by a rope which is attached to a wall at the top of the incline. The rope is angled 13 degrees above the direction parallel to the incline... 
stats please help ASAP!!!
A. The GPAs of all 5540 students enrolled at a University have an approximately normal distribution with a mean of 3.02 and a standard deviation of 0.29. Let x be the mean GPA of a random sample of 48 students selected from this University. Find the mean and standard deviation... 
physics
A mountainclimber friend with a mass of 82 kg ponders the idea of attaching a heliumfilled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such a balloon would be. Hearing of your physics skills, he asks you... 
physics
A mountainclimber friend with a mass of 82 kg ponders the idea of attaching a heliumfilled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such a balloon would be. Hearing of your physics skills, he asks you... 
physics
A mountainclimber friend with a mass of 82 kg ponders the idea of attaching a heliumfilled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such a balloon would be. Hearing of your physics skills, he asks you... 
Math
Hey i need help on my math hw i just don't get it lol please help me! Here the questions Which of the following equations has a graph that is parallel to the graph of 4x2y=7? A:2y = 4x+2 B:74x=2y C:4x+2y=2 D:4x2y=7 E:2y=4x+7 Determine if the two lines 7x+5y=35 and y= 7 ... 
Math
Can someone please help me to answer the following question? The question below has four choices, but only one correct answer. Could you please help me with the correct answer for this question? Thank you in advance. Question # 1. Find the slope of the line passing through the... 
Math: Please help
1. What is the simplified form of squared root 140? A.) 4 to the square root of 35 B.) 10 to the square root of 14 C.) 2 to the square root of 70 D.) 2 to the square root of 35 Please show me how to do this Thank You 
physicscan anyone solve this please
3. A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +xdirection (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region of magnetic field... 
Physics
A cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.420 . Suddenly, the plane accelerates forward, its altitude remaining constant. What is the maximum ... 
physics
A 748 N student stands in the middle of a frozen pond having a radius of 5.3 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 2.1 kg physics textbook horizontally toward the north ... 
Physics
A 750 N student stands in the middle of a frozen pond having a radius of 5.4 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 2.0 kg physics textbook horizontally toward the north ... 
physics
A 740 N student stands in the middle of a frozen pond having a radius of 4.8 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 2.8 kg physics textbook horizontally toward the north ... 
english garmmar
please help me if this correct answer or grmmar question below. what is your purpose to visit to canada and provide your itenerary. my answer. i am going to canada for work since i have an employer for 2 years contract working. 2.what other country you wish to visit and who is... 
English
(please help) I need help with my English assignment ASAP. I need to know the meaning of Impetus? These are the exact words. Brief summary of the impetus behind your scenario. Be clear to show a clear link to the chosen topic. I do not understand the meaning of Impetus can ... 
AP Physics
Hi, please help me solve these questions for my class. I have so much homework A car traveling at 17 m/s accelerates at 3.3 m/s2 for 16 seconds. To the nearest meter how far does it travel? To the nearest tenth of a m/s, what is the final velocity of the car in the previous ... 
Physics
My professor tells me I'm not using the right formula for this problem. can someone please help me. The formula is not delt p = density x gravity x height The mercury manometer on the right and the pressure transducer on the left are both connected to a pistondriven pressure ... 
Algebra
6x²y³ + 9x²y³ 15x²y³  =  3x²y² 3x²y² = (15/3) (x²/x²) (y³/y²) = 5y Just want it to know if is correct, but don't y³ + y³ = 2y³? I'm confused now. Can someone please help? yes, the answer is 5y and yes, y³ + y³ = 2y³ but where did this... 
english
Please how do I create a sentence outline that includes effective arguments and counterarguments to support my thesis below? Essay topic is dress codes in schools. I just don't know how to do this or where to start. Please help me start and I can build from there. Thesis: ... 
algebra
could you please help me? john needs to earn $693 to pay for trip. he finds job that pays $7 per hour and he mows lawns for $9. an hour a. write an inequality describing his goal in terms of hours at his job, x, and hours mowing lawns, y . i wrote 7x + 9y = 693., is this ... 
Art help please
a cityscape artist completes a portrait of a busy, grimy, dirty, city with no signs of nature. which of the following might he be suggesting humanity's relationship with the surrounding world? A. cities encourage productivity and life B. cities encourage disconnection from ... 
physics help
Please explain the answers. Thank You 1. A rifle is fired horizontally over a large flat plane. At the instant the rifle is fired, a student drops a second identical bullet from the same height as the rifle. Which bullet hits the ground first? 2. A monkey is hanging from a ... 
physics
1.)The apparent weight of a passenger in an elevator is greater than his true weight? Why is that? 2.) The radius of larger circle is twice that of a small circle. Two identical stones are attached to cords that are being whirled on a table top at the same speed. How would the... 
Science 8A Electromagnetism
Hi, Umm, can someone give me an example because I'm kind of confused. I need help! Please help me! For this portfolio, you will design an experiment to investigate the relationship between the number of coil loops and a strength of a solenoid. Once you have an experimental ... 
Physics
A pistol is shot upwards at an angle of 37 degrees above horizontal, with an initial velocity of 375m/s. What height does it reach? What is its horizontal range? (I pretty much know what formulas to use, but I'm not quite sure HOW to use them.. Also you should know that this ... 
World Studies
Why was the Civil War important? Why was World WarII important? Please answer my questions! http://en.wikipedia.org/wiki/World_War_I http://en.wikipedia.org/wiki/World_War_II Please note that we are not here to do students' homework for them. Our tutors try to give you the ... 
economics
ABC Machinery produces ice machine with historical (monthly) data in the Excel file. Please construct its shortrun total cost function to answer the following questions: QUESTIONS 1. Given the data, please construct a ShortRun total cost (TC) function (cubic function) by ... 
MATH!!
(1)At the begining of her math class, Mrs. Reno gives a warmup problem. She says, "I am thinking of a number such that 6 is less than the product of 7 and this number is 85." Which number is she thinking of? A11 B84 C13 D637 ___________________________________ (2)If x and... 
science
please help me with this challenge question, as i don't quite understand it.: Yolanda makes this hypothesis: "If salt is added to water, then the water will boil at a lower temperature." She sets up and experiment to test her hypothesis, but discovers that it actually takes ... 
Math 8th Grade  Ms. Sue please
After receiving a grant for music education, a school decides to build a new band room for its expanded music program. Quadrilateral ABCD represents the floor plan of the new band room. What is the area of the room? AE = 32 ft. BE = 12 ft. CE = 26 ft. DE = 26 ft. There is a ... 
college physics
cost of homework help for college physics 
Thermal physics
Explain thermal physics in details