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April 19, 2014

Search: Physics, newtons laws

Number of results: 110,945

Physics
You have a wordy instructor. So you want to investigate circular motion? Why not investigate why you feel pressed against the car door when you turn the car at higher speeds. Why? How much? How does it fit into Newtons Laws? You can explain it in a half page of text, however, ...
Friday, April 13, 2012 at 4:12am by bobpursley

Astronomy
The speed of light is the same for all observers, and the laws of physics are the same for all observers in uniform motion. These two statements are fundamental postulates of A) general relativity B) Newtons laws of motion C) special relativity D) the laws of electricity and ...
Sunday, March 28, 2010 at 3:26pm by Anonymous

Physics
Why would Newtons laws be violated?
Friday, February 20, 2009 at 4:27pm by bobpursley

physics
what do you think? Consider Newtons laws of motion.
Sunday, April 10, 2011 at 2:13pm by bobpursley

Physics
Which of Newtons laws would best explain what causes a basketball to bounce? first second third fourth which of Newtons laws would explain the whiplash caused by being rear ended in a car accident? first second third fourth I believe the answer to number one is the second law ...
Tuesday, April 29, 2008 at 7:07pm by Seana

Science
Without newtons second law would there be gravity on earth??????? Help!!! And also how are newtons second and third laws of motion important to your everyday life?
Wednesday, March 26, 2014 at 8:21pm by Kahoho

Physics
Physics Help... Applying Newtons Laws Grade 11? On the surface of the earth a geological hammer has a mass of 1500g. Determine its mass and weight on Mars where g=3.6 m/s^2.
Saturday, October 22, 2011 at 12:11pm by Erin

Anthropologhy
Sumptuary laws are: (Points : 1) property laws. marriage laws. religious laws. civil laws.
Sunday, April 7, 2013 at 1:46pm by Tawnya

Science
What is the Newtons Laws
Saturday, September 19, 2009 at 7:12pm by Madison

Physics
I keep getting Vf= 1.56 m/s which webassign says is wrong. It's in the chapter about Newtons laws of motion so, even though it is not included in the question, could that have a bearing on my answer, and if so how?
Sunday, October 30, 2011 at 7:14pm by Millie

PHYSICS PLEASE
I will do one. Then, I will be happy to critique your thinking. These require thinking on the application of Newtons laws. You can think. c) ball stops, glove moves back.
Wednesday, October 21, 2009 at 11:45pm by bobpursley

Science
If Frankie the kangaroo climbed out of the crate and pushed the crate with a mighty 12 newtons of force against the efforts of Fred and the man (each applying 10 newtons of force), what would be the net force on the crate from all the pushing? 0 newtons *8 newtons 10 newtons ...
Tuesday, July 13, 2010 at 1:25pm by Matt

Physics
Three forces are applied to a mass. Force 1: +3 Newtons Force 2: -3 Newtons Force 3: +2 Newtons What is the net force in Newtons on the mass?
Sunday, January 3, 2010 at 1:12pm by Aly

Physics, newtons laws
A 20.0 gram mass is attached to a 120 com long string. It moves in a horizontal circle with a constant speed of 1.50 m/s. What is the degree is angle between the pole and the string?
Monday, October 29, 2012 at 5:38pm by Naf

physics newtons laws
A 184 N bird feeder is supported by three cables. angle 1 is 60 degrees and angle 2 is 30 degrees Find the tension in each cable.
Sunday, October 18, 2009 at 7:59pm by luc

physics newtons laws
A 184 N bird feeder is supported by three cables. angle 1 is 60 degrees and angle 2 is 30 degrees Find the tension in each cable.
Sunday, October 18, 2009 at 7:59pm by luc

Physics
A baseball with a mass of 0.15 kilograms collides with a bat at a speed of 40 meters/second. The duration of the collision is 8.0 × 10-3 seconds. The ball moves off with a speed of 50 meters/second in the opposite direction. What is the value of the force? A. 1.8 × 102 newtons...
Friday, March 15, 2013 at 10:44am by fredrick

Government Check
What was the name of the discriminatory laws enacted in response to the 13th, 14th and 15th Amendments? a)Separate but Equal Laws *b)Jim Crow Laws c)Dred Scott Laws
Sunday, July 4, 2010 at 5:04pm by Ariel

physics
39/6 kg of weight = 6.5 kg(wt) Since you are talking physics, it is better to express the answer in Newtons W = M (g/6) = 63.7 newtons. There is nothing wrong with measuring weights in kg, but kg is really a mass measurement and newtons should be used for force and weight. ...
Tuesday, February 19, 2008 at 2:05pm by drwls

Science
PLEASE HELP !!!!! how are newtons second and third laws of motion important to your everyday life?
Tuesday, March 25, 2014 at 11:33pm by Anonymous

Science
Can someone please explain what Newtons 3 laws mean? i don't understand the text book definition.
Sunday, May 1, 2011 at 7:51pm by Christina

Physics, newtons laws
A bullet is fired with a certain velocity at an angle above the horizontal at a location where g= 10.0 m/s^2. The initial x any components of its velocity are 86.6 m/s and 50 m/s respectively. How long does it take before the bullet hits the ground?
Monday, October 29, 2012 at 5:42pm by Naf

science (physics)
In physics, Numbers that you add or subtract must have the same units. You cannot subtract newtons from kilogram-newtons or kilograms
Thursday, January 24, 2013 at 8:52pm by drwls

physics
F = k x how hard to pull 1 unit (x = 1 cm) for each? F1 = 10 Newtons F2 = 15 Newtons
Monday, February 4, 2008 at 3:49pm by Damon

physics
How do you find the total mass of two objects that weigh 111 newtons and 218 newtons?
Thursday, May 24, 2012 at 4:57pm by Jen

Science, Astrenomey
Just one more thing. Being a creationist does not mean you have to reject scientific theories. Even if God did create the universe, he had to use physical laws to do it. Maybe God is in control of those laws, and maybe not. If he is, he's done a pretty good job of making ...
Thursday, August 23, 2012 at 9:45am by Steve

physics
I've never seen a weight scale that reads in Newtons. If you want Newtons, multiply my previous answers by 9.8 m/s^2 (same as 9.8 N/kg)
Sunday, February 20, 2011 at 10:53pm by drwls

physics
A lever uses a force 212 Newtons to move a rock that weighs 2000 Newtons. What is the mechanical advantage?
Sunday, January 29, 2012 at 1:39pm by christy

engineering science
a bale of weight 200 newtons hanged at the end of a rope.find the acceleration of the bale if the tension in the rope is 200 newtons,150 newtons,300 newtons.
Tuesday, April 17, 2012 at 5:23am by aaron

Materials / Physics
Yield Strength times area. 1000e6 x pi(.02m)squared = answer in newtons about 1.26e6 newtons
Thursday, September 3, 2009 at 5:00pm by Joesmith

physics
Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons
Tuesday, September 4, 2012 at 4:01pm by Anonymous

Physics
Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons.
Wednesday, December 11, 2013 at 1:53pm by David

8th grade science
I dont know what to say here. Of the forces known to exist in nature gravity, electrical/magnetic, nuclear strong, and nuclear weak force, gravity is the only force possible. If you were trying to explain planetary motion, then the orbits result because the force of gravity is...
Tuesday, November 18, 2008 at 9:58am by bobpursley

physics
Wo = sqrt(k/m) 2 pi * 1.5 = Wo = 9.42 radians/s so 9.42 = sqrt (k/(1190+4*73.5) ) 88.8 = k/1484 k = 131,780 Newtons/meter newtons lost = 4 * 73.5 * 9.81 = weight (not mass) of people newtons lost = 2884 Newtons elongation = F/k = 2884/131,780 = .022 meters = 2.2 centimeters, ...
Monday, October 4, 2010 at 3:35pm by Damon

physics
W = mg W = weight (in Newtons) m = mass (in Kg) g = acceleration due to gravity (in m/s^2) Force in also measured in Newtons so they just want W. Oh and g = 9.8 m/s^2 Hope that helps
Friday, March 20, 2009 at 9:00pm by GanonTEK

physics
A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of:
Saturday, July 30, 2011 at 6:00pm by Steve

Physics
I suspect Flove is in Newtons, not in meters integral F dx from 0 to 2.6 (2/3) x^3 + (3/4) x^4 zero at 0 so just evaluate for x = 2.6 11.71 + 34.27 = 46 Newtons
Friday, March 14, 2014 at 4:24pm by Damon

Social Studies
Okay! I don't know the correct terminology for what I call MINI-LAWS. MINI-LAWS are laws added on to one big law. Example: Math has to make up 1/3rd of all lessons taught. MINI-LAWS would include...grades 3-12, college exempt. So can you tell me what the correct terminology ...
Tuesday, July 22, 2008 at 3:14am by Minerva

physics newtons laws 3
The coefficient of static friction between the m = 3.20 kg crate and the 35.0° incline of Figure P4.41 is 0.260. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?
Sunday, October 18, 2009 at 8:00pm by luc

physics
Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons answer please
Sunday, May 19, 2013 at 11:28pm by Anonymous

science
what would be the weight of the following items in the chemistry lab round to nearest tenth 3.4 kg of lead = _ newtons 390 g of copper = _ newtons 6820 cm3 of water = _ newtons
Thursday, January 21, 2010 at 9:42pm by suzanna

Physics
m = 33.4 kg +3.05kg = 36.45 Fup on child = 36.45*9.81 = 358 Newtons so a) Fdown on sidewalk = -358 Newtons b) zero c) -358 Newtons d)zero
Tuesday, January 21, 2014 at 2:55pm by Damon

SCIENCE
wat are 2 ways newtons 3 laws of motion apply in volleyball!!! please help i looked everywhere!!! please I NEED THIS BY TOMORROW!!!!!!! thank you
Sunday, November 11, 2007 at 5:47pm by Anonymous

physics
Two concurrent forces have a maximum resultant of 45 newtons and a minimum of 5.0 newtons. What is the magnitude of each of these forces?
Wednesday, October 15, 2008 at 3:02pm by Stephanie

PHYSICS
add these two forces a. 200 newtons @ 20 degrees N of E B. 200 Newtons @ 30 S of E
Monday, February 7, 2011 at 8:33pm by HELLO

Physics
a. kg (m/s)(l/s) this is kg m/s^2 which is mass times acceleration which is force in Newtons b. this is Newtons/second, beats me c. kg m/s^2 * m/s this is force in Newtons times distance/second which is work per second which is power in watts d. looks the same as a to me
Sunday, September 7, 2008 at 5:26pm by Damon

physics newtons laws
A box of books weighing 280 N is shoved across the floor of an apartment by a force of 390 N exerted downward at an angle of 35.1° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move the box 4.00 m, starting...
Sunday, October 18, 2009 at 7:59pm by luc

history
Yes. All civilizations have laws. They may be only oral and not written laws, but people need rules and laws when they live together.
Tuesday, September 25, 2007 at 2:41pm by Ms. Sue

Managerial Economics
Some states have had laws restricting the ssale of most goods on Sunday. Consumers, by and large, oppose such laws because they find Sundat afternoon a convenient time to shop. Paradoxically, retail trade associations frequently support the laws. Discuss the reasons for ...
Wednesday, June 18, 2008 at 10:33am by Dee

Science
The correct verb is "are". "Laws" is plural. Newton is the discoverer of three laws of motion and one of gravity. A computer search will easily lead you to what the laws are.
Saturday, September 19, 2009 at 7:12pm by drwls

physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application ...
Tuesday, November 27, 2012 at 9:59am by Kiandra

physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application ...
Tuesday, November 27, 2012 at 9:59am by Kiandra

physics
If a boat is being tugged by 2 tug boats 20000 newtons north, the river is flowing at 5000 newtons south what direction is the boat and what's the velocity?
Tuesday, February 26, 2013 at 3:03pm by Anonymous

Economics
Some states have had laws restricting the sale of most goods on Sunday. Consumers, by and large, oppose such laws because they find Sunday afternoon a convenient time to shop. Paradoxically, retail trade associations frequently support the laws. Discuss the reasons for ...
Monday, July 15, 2013 at 1:53pm by Eric

physics
spring constant (k) = (force)/(deflection) In this case, the force is the weight, 12 Newtons. If you want the answer in Newtons per meter, change the 3.0 cm to 0.030 m before dividing.
Monday, February 4, 2008 at 3:36pm by drwls

Ethics
HIPAA, GLB, and COPPA laws can help ensure people's privacy. What is their ethical justification? Is there gray area in these laws? How do some businesses try to find their way around these laws
Friday, May 24, 2013 at 12:03pm by David

physics
A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to the top,which has a height of 3 meters. What is the efficiency?
Tuesday, October 14, 2008 at 3:30am by chris

physics
Divide each of those weights (which are in units of newtons) by the acceleration of gravity (9.8 m/s^2) to get the mass in kg. I do not know if your 44.5 MN in the third question is supposed to be 44.5 million Newtons, or a typing error.
Friday, March 30, 2012 at 5:38pm by drwls

Chemistry
1 atm = 10.1 Newtons/cm^2 to find that type 1 atm = Newtons/cm^2 into a Google search box 10.1 Newtons/cm^2 * 17.5*10^3 cm^2 = 177,000 Newtons use the Google search box again: 177000 newtons = pounds and you will get back 39,791 pounds
Friday, February 14, 2014 at 7:08pm by Damon

Physics - Newtons laws
A block (mass m1 = 8kg) is moving on an inclined plane, coefficient of kinetic friction of 0.45, whose angle is 30degrees. This block is connected to a second block (mass m2 = 22kg) by a cord that passes over a small frictionless pulley. Find the acceleration of each block and...
Friday, February 24, 2012 at 1:27am by Anonymous

ethics question
how HIPAA, GLB, and COPPA laws can help ensure people's privacy. What is their ethical justification? Is there gray area in these laws? How do some businesses try to find their way around these laws?
Sunday, November 7, 2010 at 10:26pm by Anonymous

Science
http://paul-a-heckert.suite101.com/newtons-laws-for-kids-overview-a41283 http://kids.yahoo.com/science/space/article/spaceexplore
Monday, January 16, 2012 at 12:04pm by Ms. Sue

physics
A 15.0-kg box is released from rest on a rough inclined plane tilted at an angle of 45° to the horizontal. The coefficient of kinetic friction between the box and the inclined plane is 0.200. What is the force of kinetic friction on the box? Answer Fifteen square root of two ...
Wednesday, February 5, 2014 at 6:07pm by ashley

Physics, newtons laws
Let L=length of string=120cm Tsin(a)=mv^2/R, R=Lsin(a), T=mg/cos(a) mgtan(a)=mv^2/Lsin(a), mgsin^2(a)=mv^2cos(a)/L, g(1-cos^2(a))=v^2/L (cos(a)) gLcos^2(a)+v^2cos(a)-gL=0 let x=cos(a), use quadratic formula to solve for x x= (-v^2+sqrt(v^2+4L^2*g^2))/2Lg a=acos(x)=25 degrees
Monday, October 29, 2012 at 5:38pm by John

Science
how can i understand the newtons laws of motion? break it down it sesions and read it then se if you understand it umm yah i need hepl on finding out wut is the accessory organ!!! plz help!
Wednesday, February 21, 2007 at 6:58pm by Sherice

Physics
Elle is pushing a box of mass 7.0 kilograms with the force of 25 newtons. If the force of friction is 2.6 newtons, what is the value of acceleration of the box?
Monday, April 9, 2012 at 3:13pm by Moises

Physics
(a) Weight = Mass * g = 720 Newtons (b) (i) mass M stays the same at 72 kg (ii) 1/6 of 720 Newtons = ___
Thursday, June 2, 2011 at 10:53am by drwls

physics
need a step by step process of combining this question into one vector: 56 NEWTONS at 296 degrees, then 83 newtons at 152 degrees
Tuesday, March 2, 2010 at 10:51pm by jake

physics
How do I convert from kg to Newtons? You cant. kg is mass, newtons is force. If a mass is in a gravity field, then force= mass*g where g the graviational field constant is in newtons/kg (or m/s^2)
Wednesday, March 28, 2007 at 12:55pm by CJ

Physics - Newtons laws
Write separate equations of motion for each block and solve for the two unknowns: acceleration a and rope tension T, which are the same for both masses. Uk = 0.45; other symbols obvious. T - m1*g*sin30 -m1*g*cos30*Uk = m1*a m2*g -T = m2*a Add the equations to eliminate T and ...
Friday, February 24, 2012 at 1:27am by drwls

Physics
Your friend has slipped and fallen. To help her up, you pull with a force F, as the drawing shows. The vertical component of this force is 140 newtons, and the horizontal component is 145 newtons. _____N and the angle
Monday, September 5, 2011 at 12:21am by Dwight

physics
Review and apply Newton's second law of motion. F = m a The applied force, F, must be in Newtons to get the acceleration in m/s^2. A 2 kg mass applies a weight force of 2*g = 19.6 Newtons a = F/m = 19.6/4.9 = 4.0 m/s^2
Thursday, February 23, 2012 at 3:04am by drwls

Physics, newtons laws
A 50kg block is being pulled up a 13 degree slope by a force directed 30 degrees above the slope. The coeffcienct of kinetic friction between the block and the slope is 0.200. What is the minimum force required for the block to continue to slide up the plane with no ...
Monday, October 29, 2012 at 5:33pm by Naf

Physics, newtons laws
A 50kg block is being pulled up a 13 degree slope by a force directed 30 degrees above the slope.? The coeffcienct of kinetic friction between the block and the slope is 0.200. What is the minimum force required for the block to continue to slide up the plane with no ...
Monday, October 29, 2012 at 7:20pm by naf

physics
Your friend has slipped and fallen. To help her up, you pull with a force F, as the drawing shows. The vertical component of this force is 130 newtons, and the horizontal component is 140 newtons.whats the magnitude north ?
Thursday, August 23, 2012 at 10:01pm by Anonymous

Physics 1
A mass of 5 kg lies on a frictionless, horizontal floor. A force of 135 Newtons is applied to the mass at an angle above the positive x axis and a force of 14 Newtons is applied to the mass at an angle of 22.8 degrees below the negative x direction (see sketch). If the angle ...
Tuesday, October 4, 2011 at 11:43pm by J

Mechanics problem - Newtons laws - resultant force
In the case of resolving the force perpendicular to Rory's direction, isnt it suppose to be F-Raoul cos(50º) = 400 cos(30º) ?
Tuesday, April 24, 2012 at 3:00am by smart guy

physics
What does a 15 kg mass weigh on Earth? need assistance in setting up problem to get answer in Newtons and in pounds. thanks Weight in Newtons = M g =(Mass in kg) x (acceleration of gravity in m/s^2) The acceleration of gravity on Earth is g = 9.8 m/s^2. Do the multiplication ...
Thursday, September 21, 2006 at 12:13am by mitch

physics
A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate n, the magnitude of ...
Monday, October 22, 2012 at 1:38am by souleymane

physics
A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate n, the magnitude of ...
Monday, October 22, 2012 at 1:25am by souleymane

math/physics
Forces with magnitudes of 2000 newtons and 900 newtons act on the machine part at angles of 30 degrees and -45 degrees respectively, with the x-axis. Find the direction and magnitude of the resultant of these forces.
Tuesday, April 10, 2012 at 5:08pm by Cydni

Physics
A forward force of 8X102 Newtons is applied to a 1.9x103 kg car. If the friction force on the car is 6x102 Newtons what is the acceleration of the car in units of m/s2?
Sunday, January 3, 2010 at 1:11pm by Aly

Vector Calculus
Requires algebra, trigonometry and physics, not calculus. Total force down = total force up since the mass does not accelerate Do half the problem at a time since it is symmetrical So 2.5 kg down on left gives 2.5*9.8 = 24.5 Newtons down. That 24.5 Newtons must be supported by...
Friday, February 19, 2010 at 7:02am by Damon

physics
First convert 90 km/h to ___meters per second. The conversion factor is (1000 m/km) * (1 hr/3600s) Divide that speed in m/s by 5.5 s to get the deceleration rate in m/s^2. Mass(kg) x acceleration (m/s^2) = Force (Newtons) If you want it in pounds, multiply Newtons by 0.225 lb/N
Thursday, January 17, 2008 at 6:00pm by drwls

Physics
A small rocket weighs 14.7 newtons. The rocket is fired from a high platform but it's engine fails to burn properly. The rocket gains total upward force if only 10.2 newtons. At what rate and in what direction is the rocket accelerated?
Wednesday, February 19, 2014 at 8:41pm by Alex

Physics
A boat weighing 9.0 × 10 2 newtons requires a horizontal force of 6.0 × 10 2 newtons to move it across the water at 1.5 × 10 1 meters per second. The boat’s engine must provide energy at the rate of
Wednesday, January 23, 2013 at 6:00pm by Vic

government
et, or dd, or dt, or ee, or tt, or ivy, or whoever, The president doesn't make laws. Congress does that. The president can suggest or propose laws, can sign them or veto them, but he doesn't make laws.
Saturday, November 22, 2008 at 6:09pm by Writeacher

AP Physics B
Nuts to that thinking. One considers planets point particles, and for Newtons laws, one measures distance from the center. Newton himself had to prove this, and invented calculus to prove it. If you add all the force of gravity for each little rock all over the Earth, it acts ...
Friday, September 11, 2009 at 7:56pm by bobpursley

MATH116
Two forces of magnitudes 60 Newtons and 80 Newtons make an angle of 30 with each other and are applied to an object at the same point. Find the following: 1. the magnitude of the resultant force, and 2. to the nearest degree the angle it makes with the force of 60 Newtons.
Sunday, February 10, 2013 at 9:29am by Tricia

Physics
The weight of an object on Earth is 350 newtons. On Mars, the same object would weigh 134 newtons. What is the acceleration due to gravity on the surface of Mars, given that it is 9.8 meters/second2 on Earth?
Sunday, December 16, 2012 at 2:17pm by Plato

physics
A bookshelf is at rest in a room. A force of 35.0 newtons is applied to a bookshelf. If the floor imparts a frictional force of 2.90 newtons, what is the net force acting on the bookshelf?
Monday, March 24, 2014 at 12:36pm by corey

physics
If Frankie the kangaroo climbed out of the crate and pushed the crate with a mighty 12 newtons of force against the efforts of Fred and the man (each applying 10 newtons of force), what would be the net force on the crate from all the pushing?
Wednesday, October 13, 2010 at 9:50am by ...

physics repost
6599.5=Ff That IS in Newtons The 9.8 is acceleration of gravity, used to calculate the weight in Newtons of something on earth surface given the mass in kilograms. It is not needed here. There is no weight involved here, only mass and change of momentum.
Wednesday, April 16, 2008 at 8:46pm by Damon

physics
If the proper units are used (Watts, m/s and newtons, for example), Power = Force * Velocity First convert to SI units: 88 km/h = 24.44 m/s 18 Hp = 13,428 Watts Force = P/V = 549 newtons
Friday, December 9, 2011 at 7:30pm by drwls

hcs/341
so even though we may find these things a a problem and waste of time to use these laws ands regulations are good so that the company, customers etc. do not get sued for not following the laws? so i woulod agree because it makes common sense to do it but it is taken over by if...
Monday, March 21, 2011 at 8:52pm by bobbi

physics
If Frankie the kangaroo climbed out of the crate and pushed the crate with a mighty 12 newtons of force against the efforts of Fred and the man (each applying 10 newtons of force), what would be the net force on the crate from all the pushing?
Wednesday, October 13, 2010 at 9:50am by tyler mazzaro

Kinematics. Newtons Laws
Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below. Use m1 = 1.2 g, m2 = 254 g and F = 0.7 N to find the force between the two objects.
Tuesday, October 6, 2009 at 9:41am by Natasha

physics
Many laws of physics turn out to be not quite right, r perfectly accurate, when experiments of higher accuracy are performed. Newton's "Laws" of gravity and mechanics turned out to be not quite right when Einstein discovered relativity. The conservation of energy "law" can be ...
Sunday, October 2, 2011 at 10:35pm by drwls

history
Ideas for bills and laws come from citizens. If enough support is shown, then legislators propose and enact these laws. Also (sadly) -- many ideas for laws come from lobbyists who want to promote specific industries or special interests. To which groups of people do you refer?
Wednesday, February 27, 2008 at 8:43pm by Ms. Sue

u.s. government
The states make many of their own laws. But if all laws were made by the states and no laws were made by the federal government, then we wouldn't be one nation, but would be 50 separate nations.
Thursday, October 11, 2007 at 8:59pm by Ms. Sue

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