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  1. physics

    A projectile is fired from a cliff 300 m high with an initial velocity of 400 m/s. If the firing angle is 30 degrees from the horizontal, compute the horizontal range of the projectile.

  2. physics

    1)The acceleration due to gravity on the moon is 1.67 m/s2. If a person can throw a stone 12.0 m straight upward o the earth, how high should the person be able to throw a stone on the moon? Assume that the throwing speeds are the same in two cases. The

  3. physics

    A locomotive is pulling an empty freight car with a constant acceleration on a horizontal surface. The mass of the locomotive is five times the mass of the car. Which statement is true about the force applied by the car on the locomotive? A. 5x greater

  4. College algerba

    The​ half-life of a certain radioactive element is about 1500 years. After 2800 ​years, what percentage P of a sample of this element​ remains?

  5. Please Check My Work: College Physics

    Determine the minimum angle at which a roadbed should be banked so that a car traveling at 20 m/s can safely negotiate the curve if the radius of the curve is 200m. * Data: v=20 m/s r=200m *Formula TAN(theta)=v^2/rg *Solution TAN(theta)=(20

  6. Physics

    A 1.0-kg ball on the end of a string is whirled at a constant speed of 2.0 m/s in a horizontal circle of radius 1.5 m. What is the work done by the centripetal force during one revolution? I did: F=m(v^2)/r F=1(2^2)/1.5=2.7 J The answer that was provided

  7. help please English

    If this be error and upon me proved/ I nevered writ, nor no man ever loved." What is the impact of these concluding lines from shakespeare's sonnet 116? 1. They underscore the fact that everyone makes mistakes 2. They underscore the fat that shakespeare is

  8. literature/poetry

    1. If this be error and upon me proved, I never writ, nor no man ever loved. These lines are an example of a/an A. quatrain. B. octet. C. couplet. D. sestet. 2. The line "I wandered lonely as a cloud" is an example of A. a metaphor. B. a simile. C. a

  9. physics

    A net force of 25N is applied for 5.7s to a 12-kg box initially at rest. Waht is the speed of the box at the end of the 5.7s interval?

  10. Physics

    A rifle is aimed directly at the bull's eye of a target 50m away. If the bullet's speed is 350 m/s, how far below the bull's eye does the bullet strike the target?

  11. ap chemistry

    a cubic piece of uranium metal (specific eat capacity= .117 J/g degree celcius) at 200.0 degrees celcius is droped into 1.00 L of deuterium oxide ("heavy water", specific heat capacity=4.211 J/g degree celcius) at 25.5 degrees celcius. the final

  12. Analytical Chemistry

    How many millimoles and molecules of solute are in 500 ml of a solution that is 5.41 ppm KMnO4?

  13. trigonometry

    the bases of a trapezoid are 22 and 12 respectively. The angles at the extremities of one base are 65 degree and 40 degree respectively find the two legs. Answer using law of sines pls

  14. AP Chemistry

    Titanium metal has a body-centered cubic unit cell. The density of Titanium is 4.50 g/cm^3. Calculate the edge length of the unit cell and a value for the atomic radius of titanium. Ok, I know how to find the density using the atomic radius, but I'm having

  15. Language Arts

    1) Select the correct answer from the list.(1 point) Evidence must be ____and_____ for it to be considered effective in supporting a claim. 2)Evidence is relevant if it(1 point) 3)Which of the following describes a claim?(1 point) The answer

  16. Spanish

    Explain how to conjugate pedir and servir in the present tense. To conjugate both words to pat tense all you have to do is change the last two latter at the end of the word. Pedir mean to ask so at the end of pedir you can just change ir to ar,or,and er

  17. ELA

    which of the following is another word for the main idea of a speech? A.message B. chronology C. medium D. audience

  18. physics

    Pros and Cons of Digital Systems Quick Check 1.) Which statement presents an advantage and a disadvantage of online banking? -Online banking is more convenient, but personal information can be stolen- 2.) Which statement describes an advantage and a

  19. Language arts

    Which should a speaker use to support a claim? (1 point) persuasion call to action evidence opinions

  20. Math

    Which phrase best defines media? Answers: 1: Forms of communication 2: Quantitative 3: A photo of a white blood cell 4: A podcast discussing the civil war

  21. science

    Plywood is made by gluing together thin layers of wood. Which term best describes plywood? A.composite B.natural C.raw material D.conductor

  22. PLEASE HELP ASAP!!!!

    A spiral galaxy can be described as what type of shape?(1 point) oval triangular no distinct shape pinwheel What lies at the center of the Milky Way galaxy?(1 point) the sun a black hole Earth North Star How are asteroids and comets similar?(1 point) Both

  23. English

    What is the tone in the following excerpt from "The Gift of the Magi" ? There was clearly nothing to do but flop down on the shabby little couch and howl. So Della did it. Which instigates the moral reflection that life is made up of sobs,sniffles, and

  24. help algebra??

    stillwater junior high divides students into teams taught by a group of teachers the table shows the number of students in each team. imgur . com/x7kghII (picture of student numbers) The principle uses a computer to randomly select the name of a student

  25. Pre Algebra

    Which polynomial does the model represent? –x³ + 2x² – 3x + 2 x² + x – 2 –x² – x + 2***** –x² + x – 2 Can someone please help me @Ms.Sue @Reed @WriteTeacher

  26. p.e/ drugs

    1. The first step in getting help for drug abuse is (1 point) A: detoxification. B: withdrawal. C: joining a therapeutic community. D: recognizing the problem 2. A place where former drug abusers live together and learn to be drug­free is called (1 point)

  27. English! - Help!

    Can someone help me with these? My answer has a "***" next to it. 1. What do you think the narrator of “The Gift of the Magi” considers as having real value? (1 point) the protagonists' hard work the protagonists' wisdom the protagonists' possessions

  28. Algebra

    the table shows the results of a survey of college students. find the probability that a student's first class of the day is a humanities class, given the student is female. First class of the day for college students male female humanities 70 80 science

  29. AP Chem

    For the following equilibrium system, which of the following changes will form more CaCO3? CO2(g) + Ca(OH)2(s) CaCO3(s) + H2O(l) deltaH(rxn) = -113 kJ My choices are: a) Decrease temperature at a constant pressure (no phase change) B) Increase volume at a

  30. Evidence of Evolution Quick Check

    Which statement is true? (1 point) A. Fossils cannot provide information about life cycles and behaviors. B. Fossils cannot provide information about relatedness of life forms. C. Fossils can provide information about when life forms existed D. Fossils can

  31. LA

    In which type of story structure are events narrated in the order they happen?(1 point) linear structure***** nonlinear structure circular structure parallel structure Select the correct answer from the list.(1 point) The phrase (Nonlinear) describes when

  32. Science

    Modeling Nuclear Processes Quick Check: Which phrase best describes nuclear fusion? (❌)a series of reactions in which particles from one reaction trigger the next reaction (❌)the spontaneous emission of radiation from an unstable nucleus (✔️)the

  33. Science

    Yall check my answers please? 1. A spiral galaxy can be described as what type of shape?(1 point) oval triangular no distinct shape pinwheel*** 2. What lies at the center of the Milky Way galaxy?(1 point) the sun a black hole*** Earth North Star 3. How are

  34. You Chose … Wisely Quiz

    1. The ages of 5 employees of a small business are shown in the table. Name Age Tom 45 Melissa 32 Rebecca 26 Amber 23 Jonathan 19 Calculate the following: The mean age for the data set The deviation from the mean and absolute deviation from the mean for

  35. Language arts

    Which option defines the reasoning of an argument? (1 point) facts and details that support the reasons the opinion of the speaker an explanation of why and how the evidence supports the claim the group that is being addressed

  36. Health

    1. What type of drugs cause rapid speech, increased heart rate, and faster breathing A. Club drugs B. depressants C. Nicotine D. Stimulants Please respond fast i need halp

  37. Spanish

    1. Which word best describes the action in the picture. A saber B pedir C crear D enviar 2. Which sentence best describes the picture? A Toman un curso B Graban un disco compacto C Tienen mideo D Bajan una cancion 3. Why was the Kennedy Space Center first

  38. Physical Education

    1. Decide which of the following physical activities incorporates stretching on a regular basis? (1 point) 2. (Blank) stretching is now considered to be dangerous (1 point) 3. Which of the following is a lower body stretch? (1 point) 4. Which of the

  39. geometry

    12. Find the volume of the cylinder in terms of pi. The diagrams are not drawn to scale. h=8 in. and r=4 in. ~256 pi in.3 ~128 pi in.3 ***** ~64 pi in.3 ~32 pi in.3 14. What is the volume of the composite space figure to the nearest whole number? The

  40. CHECK MY ANSWERS FOR ENGLISH PLEASE

    11. Read the following paragraph found in the selection from "From Emperor to Citizen." The "Articles for Favorable Treatment" stipulated that I could live temporarily in the Imperial Palace without fixing any definite time limit. Apart from three large

  41. Geometry

    I need help with my geometry homework Use Euler's formula to find the missing number. Vertices : 15 Edges : 24 Faces : ? * 9 * 10 * 11 * 12

  42. Math Help!

    Use Euler's Formula to find the missing number. Vertices: 13 Edges: 26 Faces: ? A. 14 B. 15****? C. 16 D. 17 What is the maximum volume of a square pyramid that can fit inside a cube with a side length of 24 cm? A. 2,304 cm3 B. 4,608 cm3 C. 6,912 cm3****?

  43. Geometry

    3. A department store sells small boxes in which customers can store potpourri. The diagram below shows one of the boxes. The diagram is not drawn to scale. 3.12cm, 17cm, 5cm What are the laretal area and the surface area of the box to the nearest whole

  44. Physics

    The magnitudes of the four displacement vectors shown in the drawing are A = 14.0 m, B = 11.0 m, C = 12.0 m, and D = 25.0 m. Determine the (a) magnitude and (b) direction for the resultant that occurs when these vectors are added together. Specify the

  45. Calculus

    The area bounded by the curve y^2 = 12x and the line x=3 is revolved about the line x=3. What is the volume generated?

  46. (1-13) Chemistry - Science

    Which of the following effects will make the ratio (PV) / (nRT) less than 1 for a real gas? a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the average speed. c) The gas

  47. research writing as a process

    Question 1 What is one of the first steps in a research project? to think about the purpose of the research project. to consult a writing center tutor to formulate a thesis statement to find all the research you'll need Question 2 Which of the following is

  48. physics help

    Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound waves in phase at 688 Hz. Take the speed of sound in air to be 344 m/s. If you are 3.00m from speaker A directly to your right

  49. chemistry B

    1)which phrase best defines eutrophication -a treatment that reduces pollution -a lack of oxygen in a body of water -an overgrowth of microorganisms -an overabundance if nutrients 2)which statement about water remediation and stopping overproduction of

  50. Physical Science

    1. A piano tuner hears a beat frequency when using a tuning fork to tune a piano wire. The piano tuner should adjust the tension in the wire to A. Decrease the amount of interference and increase the beat frequency.❌ B. Increase the amount of

  51. SCIENCE PLS HELP

    In three to five sentences, identify two components of the control subsystem of a vehicle, and use them to explain why driving can be hazardous when the control subsystem is not functioning properly. pls ill take any type of help i can get

  52. Chemistry

    Alpha Particles Emission Quick Check A process in which a large nucleus splits into two or more parts is called _. A. Radioactive decay B. Nuclear fusion C. Nuclear fission D. Beta decay

  53. ELA

    1. ____ occurs when a character’s words mean the opposite of their literal meaning.​ 2. ____ occurs when what happens is the opposite of what is expected.​ 3. _____ occurs when the audience knows something that a character does not. 4. The most

  54. Physical Science

    If you took your weight first at sea level and then on top of a very tall mountain, you would find that your weight: a decreases b increases c stays the same Question 2 (1 point) This graph shows an object in free fall. Assume there is no air resistance.

  55. Science

    Suppose that the mirror is moved so that the tree is between the focus point F and the mirror. What happens to the image of the tree? (1 point) The image appears shorter and on the same side of the mirror The image appears taller and on the same side of

  56. physics

    Wave Application Quick Check 1.) A wave travels at 1,500 m/s with a frequency of 5 hertz. What is its wavelength? -300m- 2.) Humans can hear thunder at different frequencies. These correspond to wavelengths ranging from 2.75 to 16.5 meters. If the speed of

  57. physics

    Wavelength In Different Media Quick Check 1.) The sound of a plucked guitar string travels through the air and strikes the eardrum of a person in the same room. How does the sound wave change when it transfers from the air to the person’s eardrum? -Both

  58. physics

    The Speed Of Sound Quick Check 1.) Which statement correctly compares the speed of sound in solids and gases? -The speed of sound is generally faster in solids than in gases, because solids are denser than gases.- 2.) The speed of sound through diamond is

  59. Sceince

    HELP unit 5 Nuclear Processes Test send some answers my way i appreciate it

  60. Language Arts

    CHECK MY ANSWERS!! Luke wrote a paper and used another person’s ideas and information. Instead of identifying the author, he wrote the information as if he were presenting his own ideas. Which of the following did Luke do while writing his paper? A.

  61. Mathematics

    Which explains verb mood? A. It is how a verb is used to express a thought.It is how a verb is used to express a thought. B. It is how a verb is used to make a command. C.It is how a verb is used to ask a question. D. It is how a verb is used to state a

  62. Geometery

    Find the volume of the given prism round to the nearest tenth, if necessary. U6 L4 Geom B:Q 1.B 2.B 3.B 4.C 5.D 6.24 Hope it helps!

  63. Language arts

    Which is an example of a print source?(1 point) a website a magazine an e-book a video

  64. ELA

    Verb mood and voice unit test Would anybody be able to tell me if I got these right? 1) which explains for mood? It is how a verb is used to ask a a question. It is how a verb is used to express a thought< It is however herb is used to state a fact. It is

  65. SCIENCE

    Balance the following redox reaction in acidic conditions Cr2O7 2- (aq) + HNO2 (aq) → Cr3+(aq) + NO3 - (aq)

  66. Lesson 1: Final Exam Physical Education Unit 4: F

    Lesson 1: Final Exam Physical Education Unit 4: Final Exam answers please i need to check mine

  67. english

    In “The Gift of the Magi,” what is the irony in O. Henry's description of Madame Sofronie, the hair dealer? Madame, large, too white, chilly, hardly looked the "Sofronie." A. Della gets less money for her hair than she had expected. B.Madame Sofronie's

  68. science

    What caused people to accept the geocentric model of the universe?(1 point) Noticing the gravity will eventually pull all the planets and the universe back together. Telescopes allowed for a much detailed view of the circular orbits of the planets. Objects

  69. English

    Identify the sentence in each group in which the underlined verb does NOT agree with its subject. A. Everyone in Max’s family like to do jigsaw puzzles. B. One of the puzzles is missing a corner piece. C. Both of Max’s cousins are searching for it on

  70. English

    What image of Walt Whitman's "I Hear America Singing" is mostly conveyed through the repetition of the word singing? A. American laborers are all united in one song. B. American laborers are all different and sing their own individual song. C. American

  71. social studies

    Let me not to the marriage of true minds Admit impediments, love is not love Which alters when it alteration finds, Or bends with the remover to remove. O no, it is an ever-fixed mark That looks on tempests and is never shaken; It is the star to every

  72. Social Studies

    Which effect did Marco Polo’s The Travels of Marco Polo have on East Asia and Southeast Asia?

  73. math

    There are two containers of milk. There is twice as much milk in the first container as in the second. After using 2 gal. of milk from the second container and 3 gal. of milk from the first container, the second container had 4.5 times less milk than the

  74. Geometry

    Tangent Lines practice problems. Unit 7 3. In the figure below, lines that appear to be tangent are tangent. Point O is the center of the circle. Which is the value of x? I am really confused on this question. If anyone could help that would be great

  75. Government Help

    The history of mankind is a history of repeated injuries and usurpations [seizures] on the part of man toward woman, having in direct object the establishment of an absolute tyranny over her. –excerpt from Declaration of Sentiments and Resolutions Use

  76. Dynamics

    A motion of a particle is given by the relationship a=6t. If s=8m and v=4m/s when t=1sec determine: a) v-s relationship b) s-t relationship s is distance V is velocity T is time

  77. English (Please Check My Work)

    (Can someone please check my work.) 1. Read the following passage found in From Emperor to Citizen. From my infancy I was accustomed to having people kowtow to me, particularly people over ten times my own age. They included old officials of the Ching

  78. English

    1. Read the following passage from "The Women's Baths." "I have never known my grandmother to be so generous and open-handed as on the day which we spent at the market baths. She was pleased and proud as she listened to the blessings called down on her by

  79. math 101

    a student has ten posters to pin up on the wall of her room, but there is space for only seven. in how many ways can she choose the posters to be pinned on the wall?

  80. math

    The ratio of the number of Victor’s tools to the number of Ilya’s tools is 5:2. Victor has 42 more tools than Ilya. How many tools should Victor give to Ilya so that the ratio of the number of Victor’s tools to the number of Ilya’s tools is 3:4?

  81. Spanish

    Explain how to conjugate pedir and servir in the present tense I'm okay with spanish but when it comes to this sort of question in a quiz, I get stumped.

  82. Algebra

    1.A catapult launches a boulder with an upward velocity of 120 ft/s. The height of the boulder, h, in feet after t seconds is given by the function h=-16t^2+120t+10. How long does it take to reach maximum height? What is the boulder's maximum height? round

  83. English

    Identify the sentence in which the underlined pronoun is used incorrectly. A. There are only six days left in the school year. B. It will be fun to visit their house in the summer. C.Their just going to have to wait to see the movie. D. Greg refused to go

  84. math help me

    Solve: 6C3 (1 point) 120 720 20 240 2. Which is not a combination? (1 point) choosing 3 toppings for your pizza lining 3 students up in a row choosing 2 desserts from a tray of 10 choosing 5 students to represent a class of 30 3. How many ways can you

  85. English, pls help ASAP!!

    MY answers are below the poems, pls check them for me!!!! Match the category of poetry with the except or poem A. Poetry of place B. Poetry of spirit C. Poetry of nature D. Poetry of family think it is (in order): Poetry of Nature, Poetry of Place, Poetry

  86. english

    18. Identify the sentence that most strongly relies on emotional language. I was surprised when you took a job with that company. It came as a real shock when you took a job with that company. When you took a job with that company, it really blew me away.

  87. physics

    A 2kg block situated on a rough incline is connected to a spring of negligible mass having a spring costant of 100N/m.the pulley is frictionless.the block is released from rest when the spring is unstretched.the block moves 20 cm down the incline before

  88. Parabola Ques

    Find the point P on the parabola y^2 = 4ax such that area bounded by parabola, the X-axis and the tangent at P is equal to that of bounded by the parabola, the X-axis and the normal at P.

  89. phys

    The coefficient of expansion of a certain steel is 0.000012 per C^(degree) . The coefficient of volume expansion, in (C^(degree))^-1, is: A) (0.000012)^3 B) (4pi/3)(0.000012)^3 C) 3 x 0.000012 D) 0.000012

  90. Math

    Ms. Sue please help! A radio signal travels at 3.00 • 10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 3.54 • 10^7 meters? Show your

  91. English

    Not sure... Choose the citation that uses the correct MLA capitalization, punctuation, and formatting rules for a book. • Julia Alvarez. In the Time of Butterflies. San Francisco–California Press, 2005. • In the Time of Butterflies by Julia Alvarez.

  92. Algebra 2

    Amanda surveyed 20 juniors and seniors at Delamar high school to find the number of hours per week they spend working at part-time jobs. Her results are shown below. Juniors: 20,10,20,10,15,0,0,10,20,15 Seniors: 20,20,10,10,0,0,0,10,0,10 which statement

  93. physic

    The sports car in Figure 6 is travelling along 30 banked road having a radius of curvature of ñ=152 m. If the coefficient of static friction between the tires and the road is µs=0.2, determine the maximum safe speed so no slipping occurs. Neglect the

  94. English

    Identify the word or phrase that should be in italics. 1.) Riding the Orient Express toward Istanbul, Tom read the novels of Mark Twain. A.) Orient Express B.) Istanbul C.) Mark Twain D.) none 2.) He felt like a character in a Steven Spielberg movie as he

  95. Chemistry

    A current of 5.18 A is pass through a Cr(NO3)2 solution for 1.20 hours. How much chromium is plated out of the solution? __g I have no idea how to approach this. Here's what I tried to do logically but I'm not sure if it works out: I know that the

  96. Geometry

    The equation (x + 6)^2 + (y + 4)^2 = 36 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals.

  97. Physics

    Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 16.0 m, B = 12.0 m, C = 13.0 m, and D = 23.0 m. Determine the (a) magnitude and (b) direction for the

  98. economics

    A profit-maximizing firm in a competitive market is currently producing 100 units of output. It has average revenue so $10, average total cost of $8 and fixed cost of $200. a. what is the profit? b. what is the marginal cost? c. what is its average

  99. physics

    a student standing on the roof of a 50 meter high building kicks a stone at a horizontal speed of 4 meters per second, how much time is required for the stone to reach the level ground below?

  100. math

    The number of boys in a certain class exceed the number of girls by 7. If the number of boys is 5/4 of the number of girls, how many boys are there in the class? The choices of answers are: a) 21 b) 28 c) 35 d) 42 e) 63 I figured out that the answer is 35,