Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant

39,697 questions
1. technology

Need help on the question below. I have read all about all 3 laws but still don't understand if this would be 1st or 2nd law. "A ball is rolling in a straight line on a hardwood floor. A cat hits it from the right, so the ball rolls left. Which Law of

asked by Brandi on March 14, 2014

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

asked by Abi on May 1, 2011
3. Physics Urgent!!!!!

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

asked by Abi on May 1, 2011

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

asked by Abi on May 1, 2011
5. physics

Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Some assert that this effect is due to gravity. Examine this claim with Newton's law of gravity. Calculate

asked by cb on March 14, 2009

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

asked by Abi on May 2, 2011
7. Physics Urgent!!!!! I really need help with this

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

asked by Abi on May 2, 2011
8. physics questions

can you please check my answers? 1.what would be the path of the moon if somehow all gravitational foces on it vanished to zero? -would the path of the moon be arched. 6. is the force of gravity stronger on a crumpled piece of paper than on a indentical

asked by Jennifer on October 16, 2007
9. astronomy/physics

Use Newton’s Law of Gravity to calculate the force of gravity between a 39 kg person and Earth.

asked by silvia on December 1, 2011
10. Physics Urgent!!!!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

asked by Abi on April 30, 2011
11. Physics Urgent!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

asked by Abi on April 30, 2011
12. science

Newton’s law of gravity is used with great success in most everyday situations, and indeed, in planning planetary space missions such as the Rosetta probe. However, Einstein’s theory of general relativity and a theory of quantum gravity are needed to

asked by mj on August 28, 2011
13. Physics Urgent!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

asked by Abi on April 30, 2011
14. Physics Urgent!!!!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

asked by Abi on April 30, 2011
15. science

What was Newton's theory the law of gravity or was it the three laws of motion? I was thinking both of them.

asked by Anonymous on May 17, 2018
16. Physics Urgent!!!!! I really need help with this

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

asked by Abi on May 2, 2011
17. science

Which statement best describes Newton’s Law of Universal Gravitation? A.Large objects, like Earth and the Sun, attract other objects everywhere in the universe. B.Gravity is a kind of magnetic force between objects and Earth. C.Gravity is the result of

asked by victoria on February 17, 2014
18. history

Which option accurately describes the significance of the scientific theories of Isaac Newton? A. Newton’s theories helped scientists understand the significance of germs and sterilization. B. Newton’s theories helped scientists understand the

asked by michael on December 13, 2018
19. physics

1. The acceleration due to gravity calculated this way works well for objects near the Earth’s surface. How would you have to change the above equation if the object was 100,000 meters above the ground? (Note: this question refers to Newton’s equation

asked by Anika on January 24, 2014
20. physics

1. The acceleration due to gravity calculated this way works well for objects near the Earth’s surface. How would you have to change the above equation if the object was 100,000 meters above the ground? (Note: this question refers to Newton’s equation

asked by Anonymous on August 21, 2011
21. SCIENCE

1. How does mass and acceleration affect force? (What happens to force if mass increases? What happens to force if acceleration increases? ) 2. What is the equation for Newton’s 2nd Law of motion? 3. How do you calculate mass using Newton’s 2nd Law?

asked by Khaliyl on February 3, 2019
22. physics

The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's

asked by Christy on April 14, 2012
23. physics

The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's

asked by Christy on April 16, 2012
24. physics

1.What if Newton’s Third Law did not exist?. In your response to this inquiry, think of some of the consequences if Newton’s Third Law were not true. Describe in detail at least two consequences that would result if the Third Law were not true.

asked by maria on April 26, 2011
25. science

The acceleration due to gravity calculated this way works well for objects near the Earth’s surface. How would you have to change the above equation if the object was 100,000 meters above the ground? (Note: this question refers to Newton’s equation for

asked by ThuyD on January 22, 2012
26. Philosophy

Isaac Newton was one of the greatest physicists of all time. (After all,) he was the discoverer of the law of gravity. My answer: in the parenthesis is a premise indicator

asked by patris on August 31, 2017
27. Chemistry

The principal quantum number (n): A) specifies the subshell of the orbital. B) specifies the principal shell of the orbital. C) specifies the 3-D shape of the orbital. D) specifies the maximum number of electrons. E) none of the above

asked by Katelyn on October 21, 2016
28. Chemistry

The principal quantum number (n): (1) specifies the subshell of the orbital. (2) specifies the principal shell of the orbital. (3) specifies the 3-D shape of the orbital. (4) specifies the maximum number of electrons. (5) none of the above

asked by Beth on October 27, 2016
29. Chemistry

The principal quantum number (n): 1) specifies the subshell of the orbital. 2) specifies the principal shell of the orbital. 3) specifies the 3-D shape of the orbital. 4) specifies the maximum number of electrons. 5) none of the above

asked by Beth on October 22, 2016
30. math

3 3/4pt=____c show steps and work please Try the method DrWLS or I showed you FIRST. Repost if you still don't get it but tell us what you don't understand about the procedure.

asked by brooke on November 30, 2006
31. algebra

reduce to lowest terms 75a^2b ____________ 25ab&2 Is the answer 3a ____ b From the other two I did you should see how it is done. If you don't undersand, repost with details about what you don't understand. We want you to be able to do these by yourself.

asked by deborah on January 29, 2007
32. trigonometry

okay so in my review packet under the "calculator" section it says law of sines and law of cosines. i don't know what that means. i wikipedia-ed it but i don't understand what they are saying. Please help!

asked by Spencer on January 22, 2009
33. English

When is greatness is a bad thing. Please don't say when it is misused. I need a good answers please. Thanks in advamce. I don't understand your first sentence. Please clarify and repost. Please note that we don't do students' homework for them. Once you

asked by Gina on January 5, 2007
34. Physics

Many people mistakenly believe that astronauts who orbit the Earth are "above gravity." The mass of the Earth is 6x10 ^ 34 kg and radius is 6.38x10 ^ 6 m (6380 km) Use Newton's law to show that in the territory of the special ferry, 200 km above the

asked by Dunn on January 25, 2018

I really do not understand Number 7 Which of these does Newton's law of universal gravitation imply? (Points : 1) The force of gravity between two objects is inversely proportional to the product of the two masses.

asked by Gianna on January 7, 2014
36. History

Which accurately describes Newton’s Laws? newton defined the three laws of motion that govern planetary bodies and objects on earth newton defined three laws of thermodynamics that predict the conservation of energy newton defined the laws relatively

asked by malia on November 2, 2017
37. Science

True or False: Einstein's general theory of relativity explains that light is unaffected by gravity. Fill in the Blank: Newton's law of says that the gravitational force between 2 objects is proportional to the quantity of their masses and inversely

asked by Kelsey on April 1, 2007
38. Science

I would really appreciate it if someone checked my answers and told me if they were right. Thx. ~Ashley 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. A: The speeds of the objects. *B:

asked by Xx_Ashley_xX on January 28, 2015
39. Physics

Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an altitude of 248 miles above Earth’s surface. To do this, compare the gravitational force on an orbiting astronaut to the force on the astronaut here at

asked by Haley on January 28, 2014
40. SCIENCE

For my science project i have to choose a sport and list five carefully thoughtout ways that Newton's three Laws of Motion are involed in the game i selected. The sport i have selected is tennis. i have 3 ways already but i am missing 2 more. Here are the

asked by Anonymous on November 11, 2007
41. Science

Can someone please check my answers and if they are wrong can you help me fix them? Thank so much!! 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. (2 points) the speeds of the objects

asked by Melissa on January 24, 2014
42. math

2Tons=____oz Try the method DrWLS or I showed you. Then repost if you don't understand but tell us what you are having trouble with.

asked by brooke on November 30, 2006
43. Physics

In mathematical language, Newton's Law of Gravity expresses the force of gravity, F, between two objects in the following way: F= (GMm)/r^2 where M is the mass of one object, m is the mass of the other object, r is the distance between the two objects, and

44. physics

why are you more likely to have an accident on your bicycle if you are riding it on a gravel or wet pathway?how do i explain this using newton's law(s)? thanks consider newtons first law. Then, consider friction on the tire on gravel, wet vs dry pavement.

asked by Emma on June 29, 2007
45. Science

Explain the law of motion needed to solve this problem and then solve it. On Planet Zorg a 30 kg barbell can be lifted by only exerting a force of 180 N. What is the acceleration of gravity on Planet Zorg? Predict how the motion of this object would change

asked by Aiecha on May 18, 2016
46. Physics

Using newton's law of universal gravitation and the following data calculate the theoretical value of the acceleration due to gravity on mars. Mars Mass= 6.4185x 10^23 kg Radius (equatorial)= 3.3962x 10^6m

asked by Amy on November 9, 2010
47. Bobpursley can you help me with my problems below?

I had problems from yesterday but I still don't get them can you help?do you want me to repost? repost: I cant find them.

asked by Margie on March 4, 2007
48. Physics

Each of the following statements has 1, 2, or 3 conceptual flaws. Explain what is wrong with each sentence (I just need help finding a website for this) 1. A rocket moves through space because the exhaust from the rocket's engine pushes against the

asked by Aestas on February 1, 2008
49. science

the moon's gravity is about one-sixth the gravity on earth. mar's gravity is about one half the gravity on earth. make a bar graph that shows your weight (95 lbs) in newtons on earth, moon, and on mars. A newton is equal to about one quarter of a pound.

asked by nikki on May 12, 2011
50. Physics

Could you please check my answers and help me out with the last two? Thanxs! 1.Carefully define the following words: distance, displacement, speed, velocity, acceleration. Does it make a difference if we designate distance as "x" or "d"? (I don't

asked by Jules on September 2, 2007
51. Physics/Science

Which of the following is the best example of Newton's second law? A. A rolling ball comes to a stop because the forces of friction and gravity are acting upon it. B. The acceleration of a skydiver depends upon the force of gravity and wind resistance. C.

asked by Klauus on May 10, 2019
52. Physical Science

I needed help on these 3 questions that I don't quite understand. Can someone please explain to me how to solve the answer? Use this scenario to answer questions 1-3: A car crashes in a tree at a velocity -26.6 m/s. The passenger in the car is wearing a

asked by mysterychicken on March 28, 2009
53. Physical Science [repost]

needed help on these 3 questions that I don't quite understand. Can someone please explain to me how to solve the answer? Use this scenario to answer questions 1-3: A car crashes in a tree at a velocity -26.6 m/s. The passenger in the car is wearing a seat

asked by mysterychicken on March 29, 2009
54. science

1)effects of impurities on the boiling point of an organic compound. 2) purposes why melting points are determined. 3)suppose i am taking a melting point and the compound disappears, what must i do? Have you put any thought into these or do you expect us

asked by bugalo on August 15, 2007
55. physics

A rock is moving through interstellar space towards a snow ball. Describe the motion of the rock until it hits the snow ball (in terms of Newton’s First Law). According to Newton’s 3rd Law, what will be the reaction to the force of the rock on the snow

asked by Anonymous on December 18, 2013
56. Science

5. A child pushes a desk with a force of 15 N to the right. The desk accelerates to the right. Which of the following statements correctly represents Newton’s third law and the interaction between the child and desk? 1)The desk exerted slightly more than

asked by Klauus on April 12, 2019
57. physics question

I have a question about a problem regarding Newton's third law. a. An iron rod is held up by a magnet. The magnet is held up by a string (from a ceiling, let's say). Draw a free-body diagram for the magnet and a separate free-body diagram for the iron rod.

asked by Kim on November 21, 2006
58. physics

The two small spheres each with mass m= 25g are hung by silk threads length L=.65m from a common point. When the spheres are given positive charge such that q1=2q2, each thread hangs stationary at theta=15 degrees from the vertical. Using Newton's first

asked by someone on June 9, 2016
59. physics

Legend has it that Isacc Newton was hit on the head by a falling apple, thus triggering his thoughts on gravity. Assuming the story is to be true, estimate the speed of the apple when it struck Newton.

asked by taylor on November 22, 2011
60. physics

Legned has it that Isacc Newton was hit on the head by a falling apple, thus triggering his thoughts on gravity. Assuming the story is to be true, estimate the speed of the apple when it struck Newton.

asked by taylor on November 22, 2011
61. Physics

State the similarities between Coloumb's law And Newton's Law Of Universal Gravitation.

asked by Jacob on February 17, 2017
62. Physics

I'm trying to prove Kepler's equations the proof is in my book but I don't understand it (T1/T2)^2 = (s1/s2)^3 ok first what allows us to rewrite that formula as so??? (s1^3/T1^2)=(s2^3/T2^2) my book goes about the proof as m1 ((4 pi^2 r1)/T1^2) which I

asked by QUESTION on August 19, 2009
63. Physics

Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 160 km above the surface of the Moon, where the acceleration due to gravity is 1.42 m/s2. The radius of the Moon is 1.70

asked by Kristen on October 2, 2012
64. physical science

what physical law/s were used during the "burns" of Apollo 13 to adjust its path/trajectory and get it home? I know the thrusters used Newton's third law. What else?

asked by anonymous on January 1, 2011
65. Physics - Newton's Law of universal gravitation

Describe how Newton used each of the following phenomena to support the law of universal gravitation a) the orbit of the moon b) kepler's third law

asked by Shaila on August 22, 2010
66. trigonometry (repost) Mathmate

I want to start by saying thank you . You have no idea how much u have helped me understand logarithms, even better then the books i have (it poorly explains the subject of trigonometry let alone logarithms and antilog). Your last explanation was very

asked by Anon on February 26, 2011
67. Physics (deriving Keplers 3rd law)

How do I derive a straightforward form of Kepler's 3rd Law if I start with Newtons's Law of Gravitation. (the opposite of what Newton did)

asked by Jason on September 10, 2015
68. Science

I don't understand Newton's second law: Net Force = Mass x Acceleration I don't understand what this says. Does it mean that the higher the mass, the more force it takes to move it the same distance as a lighter mass or something? HEEELP! The equation,

asked by charlottethetragedy (: on April 2, 2007
69. physics

a) You are sitting at the center of the back seat of a car without seat belts and friction is low. The car suddenly makses a right turn. Describe what happens to you. WHich of Newton's laws is applicable? The car would be goind straight before the turn so

asked by Benji on November 20, 2006
70. Physics

Do Newton's Law apply to motion inside your car? A.Yes, but only when at rest. B.Yes, but only when traveling at constant velocity or at rest. C.No, never. D.Yes, always. So I tried answering the question with D at first because I was thinking that it is a

asked by Sophie on July 8, 2014
71. physics

Hi i'm doing that lab were you attach a weight to a tape which is also through a timer that puts marks on the tape at a given time interval ok I'm asked why is gravity different than on Earth? I don't rember the physics answer behind it I remeber Fg =

asked by physics on August 13, 2009
72. physics

A light rope is attached to a block with a mass of 6 kg that rests on a horizontal, frictionless surface. THe horizontal rope passes over a frictionless, massless pulley, and a block of mass m is suspended from the other end. When the blocks are released,

asked by Benji on November 16, 2006

Can someone help me understand the 16th law of John Maxwell in 21 Irrefutable Laws of Leadership which is the Law of Momentum or BIG MO and give some example to make me understand a little further? Thank you

asked by cocobananah on July 4, 2018
74. Science

1.) Use Newton’s first law of motion to explain how wearing a seat belt in a moving car could help prevent injury. 2.) A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and

asked by Cindy on April 7, 2014
75. algebra

Can someone please help me with this? Solve x^3-3x^2-10x=0 by factoring. Take out x. x(x^2-3x-10)=0 For the polynomial inside the parentheses, you want factors of 10 that will add or subtract to give 3. 10 and 1 gives 11 or 9 so that is no good. But 5 and

asked by Linda on January 11, 2007
76. CHEMISTRY

sorry! this is the full question: Two samples of sodium chloride were decomposed into their constituent elements. One sample produced 1.78 g of sodium and 2.74 g of chlorine. Which of the following could be the results of the decomposition of the other

asked by Diana on September 24, 2015
77. Physics

According to conservation of momentum, when two objects collide, the momentum lost by one object equals the momentum gained by the other. Give a common-sense, non-mathematical explanation of the connection between Newton’s 3rd law and momentum

asked by Tammy on March 28, 2011
78. Physics

According to conservation of momentum, when two objects collide, the momentum lost by one object equals the momentum gained by the other. Give a common-sense, non-mathematical explanation of the connection between Newton’s 3rd law and momentum

asked by Tammy on March 26, 2011
79. Chemistry

Give the electron configurations of 22Ti+2 Do you know how to do this? Here is a site that will help you. Repost with specific questions about the points you don't understand.

asked by Justyna on October 29, 2006
80. english

Which label best fits the following text? Sir Isaac Newton, the first person who studied gravity seriously, discovered what is known as the law of universal gravitation. It defines the amount of attraction of one particle of matter on another particle of

asked by marie on March 4, 2017
81. physics question

The sum of the emfs and potential difference around a closed loop equals zero" is a consequence of: a) Newton's third law b) Ohm's law c) Newton's second law d) conservation of energy e) conservation of charge For this question: I had picked d conservation

asked by susane on March 28, 2007
82. math dealing with varibles

solve this problem S-46=14 is it... a)34 b)31 c)32 d)none of the above do you know how to solve for S? You want all of the variables (in this case S) on one side and the numbers on the other. We have S on the left side; we leave it there. We need to move

asked by Tre'Chon Williams on November 15, 2006
83. Algebra

I don't understand how to do this problems: Solve for the variable r, C=2PIr (PI is the pi symbol thing then r is next to it) and this problem solve for the variable l, S=B+1/2Pl please help :) When you solve for a variable, you want that "letter" on one

asked by Avalon on November 18, 2006
84. 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

asked by physics on August 17, 2009
85. physics

In calculating the force of gravity between two objects, if the mass of one object increased by 4 and the other by 2, how many times would the force of gravity increase? I still don't understand but drwl's said that its proportional to the product not the

asked by Jon on April 2, 2008
86. Physics Urgent!!!!!

OK, I know, I'm postin this way too many times but I'm halfway there now.... Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational

asked by Abi on May 2, 2011
87. Physics Urgent!!!!!

OK, I know, I'm postin this way too many times but I'm halfway there now.... Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational

asked by Abia on May 2, 2011
88. physics

A hunter finds his target standing on top of a frozen lake. He shoots with his rifle but in doing so, he too was thrown back over the lake and injured himself. Why did this happen? I'm thinking Newton's 3rd law but aside from that don't really know how to

asked by anonymous on October 3, 2018
89. Physics

I'm trying to help my 7th grader with homework and I don't know this stuff. How do you figure word problems based on newton's 2nd law. one problem is: What is the acceleration of a ball if a force of 20N is applied to the 8kg ball?

asked by Denise on February 21, 2011
90. Columbs Law

I need help with the following questions from my homework. thanks! How does one coulomb of charge compare with the charge of a single electron? How is coulombs law similar to Newton's law of gravitation? How is it different?

asked by Whit on November 5, 2007
91. Physics

In calculating the force of gravity between two objects, if the mass of one objects increased by 4 and the other by 2, how many times would the force of gravity increase? Ok well Im horrible at physics but the way I understood it was that you would take 4

asked by Lynn on May 4, 2008
92. Math

In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability that a randomly chosen student studies: 1. Both Economics and Law 2. At Least one of these subjects 3. Economics given that he or

asked by John on October 31, 2017
93. Math

In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability that a randomly chosen student studies: 1. Both Economics and Law 2. At Least one of these subjects 3. Economics given that he or

asked by John on October 31, 2017
94. Math

In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability that a randomly chosen student studies: 1. Both Economics and Law 2. At Least one of these subjects 3. Economics given that he or

asked by John on October 31, 2017
95. Science

Why you feel pressed back into the seat of a car when it accelerates. ps.. its based on Newton's inertia, i think. I don't understand this,and i have no idea what this is about...........NO IDEA............. __ ____

asked by I+6 grade science=i don't understand science on January 5, 2009
96. Physic

Is Coulomb's law consistent with Newton's Third Law? In particular, how do F^elec A-->B and F^elec B--->A compare in magnitude? in direction?

asked by Aliasa on January 27, 2014
97. Physic II

Is Coulomb's law consistent with Newton's Third Law? In particular, how do F^elec A-->B and F^elec B--->A compare in magnitude? in direction?

asked by hulide on January 26, 2014
98. marine science

Lesson 3: wrapping up unit 1 Marine science A unit 1: about the earth. 1. The history of Sir Isaac Newton study of gravity does which of the following. a .illustrates how a theory becomes law b.provides an example of a theory that has been discredited c.

asked by alvin on September 18, 2018
99. Physics

Summarize two observations that are contrary to the predictions based on Newton’s laws but that confirm Einstein’s explanation of gravity. Indicate how the predictions based on Newton’s theory differ from Einstein’s.

asked by Pat on January 11, 2012