# physics( i have no idea how to go about gettign th

165,102 results, page 99

1. ### physics

a football punter accelerates a football from rest to a speed of 7 m/s during the time in which his toe is in contact with the ball (about 0.18 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
2. ### physics

A football punter accelerates a football from rest to a speed of 9 m/s during the time in which his toe is in contact with the ball (about 0.22 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
3. ### physics

The rate of energy use in a typical house is about 2.0 kW (2.0 × 103 W). If the kinetic energy of a 1400-kg car is equal to the total energy used by the house in 1 min, what is the car’s speed?
4. ### College Physics

A force, F = (2x + 3y) N, is applied to an object at a point whose position vector with respect to the pivot point is r = (5x + 4y + 2z) m. Calculate the torque (in units on Nm) created by the force about that pivot point.
5. ### English

1. What about Thoreauï¿½s night in jail made him angry? (1 point) The fact that his stay in prison was too short to make a point. *The interference with his protest. The uncomfortable accommodations. 2. Why do the playwrights refer to their protagonist as ï¿½The Now ...

Hi, I have to compare Crossing Brooklyn Ferry by Walt Whitman to modern day time. The last couple of journal entries I've compared to well known songs and their lyrics. I'm thinking of comparing it to an important event or movie, but I'm not sure what to write about. Any ideas...
7. ### math

About 47 years to about 77 years. Find the percent of increase to the nearest percent. would the answer be 64%?
8. ### English

1. Let's find out more about the singer. 2. Let's look for more about the singer. [Can we use #2? Are both okay?]
9. ### Pre Algebra

A spoke on the bike wheel is about 12 inches long. The diameter of the wheel is about how many inches?
10. ### physics

You own a yacht which is 14.5 meters long. It is motoring down a canal at 9.80 m/s. Its bow (the front of the boat) is just about to begin passing underneath a bridge that is 30.0 m across. How much time is required until its stern (the end of the boat) is no longer under the ...
11. ### Physics

If a 60 kg person stands on a low wall with her full weight on the ball of one foot and the heel free to move, the stretch of the Achilles tendon will cause her center of gravity to lower by about 2.5 mm. What is the spring constant of her Achilles tendon? If she bounces a ...
12. ### Physics- tension

An 63 kg construction worker is sitting 2.0 m from the end of a 1435 kg steel beam to think about the state of the world. Find the tension in the cable that is supporting the beam. Am I required to use the formula T1=sin(theta)*m*g? I am not sure if the problem is similar to a...
13. ### physics

Each of the following objects has a radius of 0.169 m and a mass of 2.02 kg, and each rotates about an axis through its center (as in this table) with an angular speed of 38.6 rad/s. Find the magnitude of the angular momentum of each object. (a) a hoop kg · m2/s (b) a solid ...
14. ### History 2 questions

Please help if you can. 1. The idea that the people have the right to abolish an abusive and unresponsive government was FIRST formally expressed by Americans in the a. Constitution b. Petition of Right c. Declaration of Rights d. Declaration of Independence I think it's b. ...
15. ### Physics

Imagine that you are designing a circular curve in a highway that must have a radius of 330 ft and will carry traffic moving at 60 mi/h. a) At what angle should the roadbed be banked for maximum safety? b) If the roadway is not banked, what would the necessary coefficient of ...
16. ### English

It's more of a survery question where I need to ask people how they feel about advertising... Then write 250 words about it. When an author (like on T.V., newspapers, magazines) uses the word 'you' throughout the article. Do you find the second person more stylistically ...
17. ### English

It's more of a survery question where I need to ask people how they feel about advertising... Then write 250 words about it. When an author (like on T.V., newspapers, magazines) uses the word 'you' throughout the article. Do you find the second person more stylistically ...
18. ### Literature

Can anyone suggest a piece of fiction written in or about the colonial age (1582 - 1789). I considered something about the Salem Witch Trials but it cannot be "The Crucible" because someone already snatched that. Grrr. That is the only thing I could think of. It has to be ...
19. ### American History

Hi, I need help on answering this question: To what extent did foreign affairs shape American domestic politics in the 1790s? -- I know about the competing visions between Hamilton and Jefferson as well as the British and the French... But i'm lost. i don't know which side to ...
20. ### Health

sorry about all the questionsD: i promise this is the last one, i hate creating so many posts, but, for health class were learning about cosmetic teeth whitening, (its a small extra credit thing) I need to know if enamel micro abrasion is safe for children?
21. ### 6th Grade Christian History

Why were the Christians persecuted by the Romans? At first I thought it was because they didn't believe in God. But then I had the question "to the Romans what was appealing about Christianity? What did they like about the teachings?" Please help!! I am sooooo confused.... ...
22. ### Spanish

Discuss your opinions and ideas about three different popular political issues. Include how you think things should be and what you wish certain people would do about it. Articulate your ideas on paper (one-page, typed) using the subjunctive.
23. ### psychology

1 what does peter singer say about history liberation movements? 2 The philosopher,John Stuart mill recognized the follow as a potential problem for utilitarianism what is peter point about performing vivisection on mentally health disabled human infants?
24. ### Calculus

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y= 2e^(−x), y= 2, x= 6; about y = 4. How exactly do you set up the integral? I know that I am supposed to use the washer method but I can't figure out the...
25. ### Chemistry

During a fractional distillation of a 25mL ethanol/H2O soln, it was found that first the temperature stayed constant at ~75 C for 3mL of soln, then it went up to 100 C for the rest of the soln. The first question is: Assuming that the unknown (ethanol) did not form an ...
26. ### social studies

which of the following statements is supported by information in the article? (1)people are better informed about hurricanes than they are about floods.(2) natural hazards can be prevented if people are educated about their occurrence. (3)increaed losses due to natural ...
27. ### Environmental Science

Many areas of the world that do not have adequate fresh water have become habitable because a.rainfall patterns have changed b.water management projects have diverted water to the areas c.icebergs have been towed in to provide fresh water d.people have practiced water ...
28. ### English 2

I have to do a 1000 word essay paper detailing the research of a career that is of interest to me.I picked a teacher but cant find any info on it. I have to get things like salary scale, retirement plans,daily duties,typical hours worked,types of training required,etc.I would ...
29. ### English

I left out the following sentences. Thank you very much, Writeacher. 1) This is the first time I’ve flown in an aeroplane. The child slept from eight till eight without waking one. I’ve known Mary since last month. 2) We sent John three emails last week, but he didn’t ...
30. ### language

Based on the text preview as well as research about the background of the novel in and the authors life, a reader can predict the novel will mostly be about A. A young boy who marches in Washington as part of the civil right movement B. Family who is persecuted by oppoents of ...
31. ### Accounting

Dr. Rees: Ruth, good to see you again. Why didn’t you call me when you were in Denver? We could have had dinner together. Dr. Turner: Actually, I never made it to Denver this year. My husband and kids went up to our Vail condo twice, but I got stuck in Fort Lauderdale. I ...
32. ### Physics

Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earth’s mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth
33. ### physics

2. Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earth’s mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth
34. ### English

Question : Matthew Antony, Grant’s former teacher tells him, “What do you know about life?” He tells him, “ You have to go away to know life.” – What does this mean to you? I need some pointers to help me answer my question... (like extra ideas)
35. ### English

[j], [w] : phonetic symbols Are both consonants or vowels? They are called semi-vowels, but we add 'a' not 'an'. ex. a year, a woman. A is put before a consonant and an is put before a vowel, isn't it. I'd like to know about [j], and [w]. Do you have a good website for that?
36. ### (8th)English, Research Project

I am researching C.S. Lewis, and I have to write a research paper on him. However, I don't know where to look for information on how he positively affected society. Even if I get the information, I am unsure about how to write the thesis statement.
37. ### History

I have a question about American imperialsim. The American belief in superiority was one major factor that led to American imperialism. What were the social, economic, and strategic factors that also played a role in American imperialism? Thank you!
38. ### Science

A stationary roller coaster at the top of its path is 30m about the ground. The car and its passengers have a mass of 400kg. What is the velocity of the car when it reaches the ground lever? The formula for velocity is (Distance/time)
39. ### Pre-Vet

I'm doing a report on shark and ray behavior for my pre-vet class and I have been trying to get some good information on tonic immobility. There is not much about it on the internet so any information would be helpful.
40. ### English

I am writing an essay about why marriage is an important institution. I have several ideas such as financial benefits,more stability,more appreciation by the society. What other benefits of marriage are out there? Thank you in advance!
41. ### visual basic 2010

Assuming the ocean's level is currently rising at about 1.5 millimeters per year, create an application that displays the number of millimeters that the ocean will have risen each year for the next 10 years.
42. ### english

Prompt B: Think about all of the selections you’ve read thus far by European writers. Examine one element that the selections have in common, not including the fact that they are all European. Detail your findings.
43. ### Math

What must be true about the solution to this system of equations? x+4y+9z = -96 -2y+9z = -47 z = -7 a) The solution will describe the intersection point(s) of the 3 graphs. b) The value of z must be -7. c) The solutions will have values for x, y, and z. d) All of the above ...
44. ### american government

Explain how the Constitution promotes the public good. Your answer should be at least three well-developed paragraphs. I have read the whole chapter in my book about the Constitution and the public good but I don't understand it. Help????
45. ### Physics

A. You drag a suitcase of mass 19 kg with a force of F at an angle 41.3 degrees with respect to the horizontal along a surface with kinetic coefficient of friction 0.54. The acceleration due to gravity is 9.8 m/s^2. What is the normal force on the suitcase? Answer in units of ...
46. ### calculus: related rates

hello, please help me. A cylindrical can is being heated with its height increasing at the rate of 0.01cm/min and its diameter at the rate of 0.005cm/min. At what rate is the volume increasing when the can has a diameter of 15cm and a height of 20cm. this is how i'm going ...

The spring constant of a toy dart gun is 4442 N=m. To cock the gun the spring is compressed 1.5 cm. The 8 g dart, fired straight upward, reaches a maximum height of 26 m. The acceleration of gravity is 9.81 m/s2 : Determine the magnitude of the energy dissipated by air ...
48. ### English/ Literature

I'm writing an essay for my class on the book the Lord of the Flies. I need some help thinking of a specific topic, however. Here's the assignment: think of how one of the novel's symbols adds depth and/or richness to its allegorical meanings. OR think of a conflict or ...
49. ### Technical Communication

Which of the following elements is a characteristic of a collaborative relationship? The collaborative relationship can have as few as one individual or as many as ten individuals involved in it. Physical proximity is a necessary for successful collaborative efforts. Sometimes...
50. ### art history

1. During the ______, the writings and art of Ancient Greeks were rediscovered. 2. ______ is the study of religious faith, practice and experience. 3. Renaissance thinkers promoted _______, individualism, and secularism. 4. _______ is the idea that people should be more ...
51. ### Physics

4) A 1200 kg car is accelerating at 1.6 m/s2. If the coefficient of friction of friction is 0.15, what is the force applied to the car by the engine? here do you use the equation kinetic friction= μk(normal force) and put in 1.6 m/s^2=.15(Fn) is this how you go about it?
52. ### college physics

A football punter accelerates a football from rest to a speed of 7 m/s during the time in which his toe is in contact with the ball (about 0.26 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
53. ### physics

suppose that all the people of the earth went to the north pole and on a signal all jump straight up. estimate the recoil speed of the earth. the mass of the earth is 6 x 10^24 kg and there are about 6 billion people(6 x 10^9).
54. ### Physics

The largest moon in the solar system is Ganymede, a moon of Jupiter. Ganymede orbits at a distance of 1.07 X 10^9 m from the center of Jupiter with an orbital period of about 6.18 X 10^5 s. Using this information, find the mass of Jupiter.
55. ### physics

in a bag there are 20 red 30black 40 blue50 white balls. what is the minimum number of balls to be drawn without replacement so that you are certsin about getting 4 red,5 black,6 blue,7 white balls
56. ### english check

i have to write a review of the short stiry the rocking horse winner . i need help in how to start it is this good intro about author then short story and then write the themes. if this is not the way give me an outline i could follow or tips for making it right.
57. ### chemistry

Something that will lower the freezing point of water to -3.7 degrees Celsius if one mole were placed in 1000 grams of water? To solve this I know I have to use the equation Tf= IKfm, Tf= 3.7, but how I go about the problem there if I don't know Kf or the the mole of solute (...
58. ### math analysis

(1/a)+(2/a^2)=0 Solved for zero I'm unsure about the process to solve this, when I do it like my teacher says, it doesn't work. This is for an online advanced math class in which you get three tries to solve the problem. I have already used two. Any help would be greatly ...
59. ### History: Constitution

Help on writing thesis: Would you have been a Federalist or Anti-Federalist? Explain your response using specific information about the ratification of the Constitution, the Bill of Rights, the Articles of Confederation, the size of the nation, and power of the thirteen states.
60. ### Physics

An Olympic diver performs a dive from the 10 m platform and achieves a speed of 14 m/s just before entering the water. Neglecting air friction, approximately how many times larger the diver’s speed than the diver would have achieved by performing from a 1 m platform? How ...
61. ### Physics

Olympic diver performs a dive from the 10 m platform and achieves a speed of 14 m/s just before entering the water. Neglecting air friction, approximately how many times larger the diver’s speed than the diver would have achieved by performing from a 1 m platform? How much ...
62. ### English

Read the following sentences adapted from p. 129 of The Watsons Go to Birmingham-1963. The boys got into bed. Byron was up in his top bunk and Kenny was down in the bottom. Kenny was so excited that he was talking a mile a minute-although he realized that he was probably just ...
63. ### Unit 3: Lesson 8: Interaction of Forces Unit Test

1. Which of the following is true about the electric charges on the objects below? (A) The ball on the right has a Positive charge and the ball on the left has a negative charge.*** (B) The ball on the left has a Positive charge and the ball on the right has a negative charge...
64. ### English

I have this assignment that I am working on I am little confuse with it is help please. I have found that the poem uses both just explain how it is used like assonance is the repetition of vowel-sounds so look for the vowels in the poem. For example poems, live, sad, diagnosis...
65. ### Assignment: What to do?

Choose a public setting to observe. You can choose a setting that is new or one that is familiar to you. Some suggestions are a store, beauty shop or barber shop, restaurant, train or bus station, airport, religious service, or sports event. Try to approach your setting like ...
66. ### Chemistry

My question is what is the molar mass of 1.00 mol of Li? Can you explain in detail and I have another question: What is the molar mass od 1.00 mol of Ag but if you help me with the first question, then can you just tell me to the other by myself so I can see if I did it right ...
67. ### physics

An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 75.0 cm long and has a mass of 5.28 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? Responses Physics - bobpursley, Saturday...
68. ### English

1. How about making a gift together? What do you say to making a gift together? How do you feel about making a gift together? Why not make a gift together? (Are they all the same? Which ones are commonly used?) 2. Is a green pepper green and is a red pepper red? (Is this ...
69. ### Physics

A car with good tires on a dry road can decelerate at about 5.0m/s/s when braking. If the car is traveling at 55miles/hour, how much time does it take the car to stop? 55 mph = 80.7 ft/s = 24.6 m/s Divide the initial speed by the deceleration rate to get the time required. (24...
70. ### Physics

A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to rotate along with ...
71. ### Physics

A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to rotate along with ...
72. ### Physics

Two trucks that appear to be identical collide on an icy road. One was originally at rest. The trucks stick together and move off at more than half the original speed of the moving truck. What can you conclude about the contents of the two trucks?
73. ### physics

A penny is placed at the outer edge of a disk (radius = 0.119 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.70 s. Find the minimum coefficient of friction necessary to allow the penny to rotate along with ...
74. ### English

I am writing a feasiability study on an investment made my a hypothetical company into an internet news company. This idea sprung from my inquiry question :"What does the media hold in store for us?" Has anyone got any suggestions as to what fontant should be in there? Any ...
75. ### Early Child Ed./Physical Growth

Can someone please help with this question because I am confused. Myra is three years old and is developing normally. Which statement is True about her physically? 1. Myra's thumb is opposable to just one finger. 2. Myra will grow approximately 2 to 3 inches taller this year. ...
76. ### Trigonometry

At the ocean, it is known that the tide follows a trigonometric path. At high tide, the water comes in to a point 1 meter from where I placed a flag. At low tide, the water comes in to a point 11 meters from the same flag. The time it takes from to get from high tide to low ...
77. ### English

1. I think I can fit in you. 2. I think I can fit you. (Are both the same? In #1, 'fit' is an intransitive verb. And in #2, 'fit' is a transitive verb. Right? Do you have some more expressions which could be used instead of 'fit' in each sentence?) 3. It set the piece down ...
78. ### Science

Problem How could renewable energy sources be used in a house? Devise a Plan 1. Consider what you learned about renewable energy sources. Use what you learned to design a house that operates entirely on renewable energy sources. Focus on three major needs: (1) heating and ...
79. ### physics

a pulley with rotational inertia of 1.5 times 10 ^-3 kg times m^2 about its axle and a radius of 15 cm is acted on by a force applied tangentially at its rim. The force magnitude varies in time as F=.5t + .3 t^2, where F is in newtons and t in seconds. The pulley is initiall ...
80. ### physics

Think about the analogy "full of hot air." If a person were to inhale 2.2 L of gas at a temperature of 18 °C and that air heats to a temperature of 38 °C inside the lungs, what would be the new volume of the gas? Round to the nearest hundredth. Don't forget the units.
81. ### physics

Think about the analogy "full of hot air." If a person were to inhale 2.2 L of gas at a temperature of 18 °C and that air heats to a temperature of 38 °C inside the lungs, what would be the new volume of the gas? Round to the nearest hundredth. Don't forget the units.
82. ### Physics

A tall strongman of mass m = 93 kg stands upon a scale while at the same time pushing on the ceiling in a small room.If the scale reads 1062 N (about 239 lb), what is the magnitude of the normal force that the ceiling exerts on the strongman?
83. ### Physics

A flywheel for energy storage in a hybrid gasoline-electric car is a ring-shaped rotor of mass 50 kg, designed to rotate at 30000 rpm. At that speed it stores 10 MJ of energy (equivalent to about a cup of gasoline). What is the ring's diameter?
84. ### physics

A 4.00 kg mass and a 3.00 kg mass are attached to opposite ends of a thin 32.2 cm long horizontal rod. The system is rotating at angular speed omega = 4.70 rad/s about a vertical axle at the center of the rod. Determine the kinetic energy K of the system.
85. ### Physics

A golf ball with a mass of 50.3 g can be blasted from rest to a speed of 72.1 m/s during impact with a club head. Assume that the impact lasts only about 0.910 ms. Calculate the change in momentum of the ball. Calculate the average force applied.
86. ### physics

a wheel radius 0.25 m is mounted on a frictionless horizontal axle. the moment of inertia of the wheel about the axis is 0.040. a light cord wrapped around the wheel supports the 0.50 kg of box. the wheel is released from the rest. what is the magnitude of acceleration of the ...
87. ### physics

from a disk of radius R,a concentric circular portion of radius r is cut out so as to leave an annular disc of mass M . the moment of inertia of this annular disc about the axis perpendicular to its plane and passing through its centre of gravity is
88. ### physics

A golf ball with a mass of 48.0 g can be blasted from rest to a speed of 69.4 m/s during impact with a club head. Assume that the impact lasts only about 1.010 ms. Calculate the change in momentum of the ball. Calculate the average force applied.
89. ### Physics

Do you think that power generated by the electric company means the same thing as the power as explained in this lesson (meaning work over time)? Why or why not? My teacher gave a hint to "Think about each in terms of the amount of work done" Please help! Thank you!!
90. ### physics 1

Glass has a density of about 2500 Kg/m^3. fresh water has a density of 1000 kg/m^3. if a 5 kg block of glass is sitting on the bottom of a freshwater fish tank, what is the normal force on the floor of the tank? 30N is what my professor says is correct, but im confused how?
91. ### HUM

Could you please help me re word this paragraph. I need it to be at least 100 words, but this one that I did was not good enough. Social media sites have affected commerce because people can advertise to thousands of people all at once through different sites. Social media ...
92. ### Math

An observer atop a cliff sees a speedboat approaching a dock located at the base of the cliff directly below the observer. Express the distance, d, from the observer tot he boat as a function of the distance, x, from the boat to the dock, if the cliff is 150 feet high. State ...
93. ### maths

how to work out partial fraction decomposition when given 1/x(x^2+1) and 2x-1/(x+4)(x-3) if you could give me an idea of the formula and what changes i need to make to the formula when the denominator changes that would help and please use idiot speak because the text books ...
94. ### chemistry

1. the volume of an idea gas is 2.06L at standard temperature and pressure. Calculate the volume at 1.75 atm and 27CELCIUS. 2. Ethane, C2h6 has a molar heat of vaporization of 15kj/mole. How many kilojoules or energy are required to vaporize 5 g of ethane?
95. ### Literature

What is the BEST statement of Alice Walker's main idea in "Choice"? a. Dr.King fought valiantly to the day he died b. Dr.King restored home to the dispossesed c. Dr.King had a clear conscience d. Dr.King gave moving sermons Thanks -MC
96. ### Grammar

Is this sentence grammatically correct? In the novel, Picture of Dorian Gray, by Oscar Wilde, the character Dorian Gray conveys the idea that influence eventually forces people to become another person and make decisions that are aberrations.
97. ### Mythology

I wonder if this is a good example of magical realism for my own etiological myth: Theodoreus carries a big sack, then opens it in front of Cyclopes after he says, "What are you going to do with that big sack?" This idea may need to expand.
98. ### Art

In the picture of the cheshire cat up in the tree on the movie Alice in Wonderland what does the artist's work in this image help the reader understand? A. how the trees looked in winter B. the idea of a cat fading away C. what the cat is looking at D. that the cat can talk Is...
99. ### Trig/Precalc

Find the greatest possible value of 5cos(x)+6sin(x). I know that it would be a good idea to look for identities that are in the form of acos(x)+bsin(x), but I can't seem to find any. Other than that I don't really know where to go with this problem. Any help would be much ...
100. ### history

The ______________________________ signaled the end of the Reconstruction era and completed the repudiation of the idea, born during the Civil War and pursued during Congressional Reconstruction, of a powerful federal government protecting the rights of all citizens. help?