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July 31, 2014

Search: Physics, newtons laws

Number of results: 56,188

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 ...
March 28, 2010 by Anonymous

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? 37.9 newtons 32.1 newtons 33.1 newtons 35.0 newtons 50.5 newtons
May 2, 2014 by Dalton

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 ...
April 29, 2008 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?
March 26, 2014 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.
October 22, 2011 by Erin

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 ...
July 13, 2010 by Matt

Science
What is the Newtons Laws
September 19, 2009 by Madison

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

physics
Two forces of magnitude 20 newtons and 25 newtons respectively act at a point. If the resultant force is 39 newtons, the angle between the forces has to be nearly?
July 5, 2014 by raghavendra

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?
October 29, 2012 by Naf

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...
March 15, 2013 by fredrick

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.
October 18, 2009 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.
October 18, 2009 by luc

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

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?
January 3, 2010 by Aly

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
July 4, 2010 by Ariel

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?
October 29, 2012 by Naf

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

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
September 4, 2012 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.
December 11, 2013 by David

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

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
May 19, 2013 by Anonymous

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

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:
July 30, 2011 by Steve

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?
October 18, 2009 by luc

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
January 21, 2010 by suzanna

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.
April 17, 2012 by aaron

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 ...
July 22, 2008 by Minerva

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...
October 18, 2009 by luc

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
November 11, 2007 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?
October 15, 2008 by Stephanie

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?
February 26, 2013 by Anonymous

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)
March 28, 2007 by CJ

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?
October 14, 2008 by chris

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 ...
November 27, 2012 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 ...
November 27, 2012 by Kiandra

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 ...
June 18, 2008 by Dee

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...
February 24, 2012 by Anonymous

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

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 ...
July 15, 2013 by Eric

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
January 23, 2013 by Vic

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 ...
October 29, 2012 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 ...
October 29, 2012 by naf

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!
February 21, 2007 by Sherice

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
May 24, 2013 by David

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.
February 10, 2013 by Tricia

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?
November 7, 2010 by Anonymous

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 ...
September 21, 2006 by mitch

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 ...
October 4, 2011 by J

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 ...
February 5, 2014 by ashley

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
March 2, 2010 by jake

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
September 5, 2011 by Dwight

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?
April 9, 2012 by Moises

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 ?
August 23, 2012 by Anonymous

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.
April 10, 2012 by Cydni

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 ...
October 22, 2012 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 ...
October 22, 2012 by souleymane

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?
February 19, 2014 by Alex

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?
January 3, 2010 by Aly

Physics
is force and normal force the same thing? if not what is the difference. for instancee if a problem said given a force of 20 newtons. would normal force be 20 newtons? please answer !!!!!!!!!
October 5, 2011 by Tina

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?
December 16, 2012 by Plato

physics
You are in the supermarket, pushing a cart with a force of 79 Newtons in the horizontal direction. There is a constant force of kinetic friction operating on the cart of 14.2 Newtons. Calculate the net work done on the cart, if the cart is displaced 1.2 metres in a straight line.
May 25, 2014 by naser

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?
October 13, 2010 by ...

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.
October 6, 2009 by Natasha

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?
March 24, 2014 by corey

statistics
A supplier of plastic pellets claims that when the plastic is pressed into wafers of uniform thickness, they will have a mean breaking strength of 165 newtons and a standard deviation of 5 newtons. An engineer at the company randomly selects wafers from 12 batches of pellets. ...
March 1, 2011 by Maddie Liguori

Physics- pls help
A 5kg object starts at rest and has a force applied to it of 10 Newtons for 2 seconds, followed by 20 Newtons for 2 seconds, followed by 30 newtons for 2 seconds, all in the same direction. a. Determine its final velocity b. Sketch a graph of force vs time c. Create a ...
November 1, 2010 by sally

math
If an object with the weight of 70 newtons requires 37 newtons to start sliding, what is the value of the coefficient of the static rounded to the nearest tenth?
May 13, 2012 by joseph

Physics 1
A mass of 8 kg lies on a horizontal, frictionless floor. A force of 53 Newtons pushes to the left (negative x direction) with a force of 53 Newtons. Another force of unknown magnitude pushes the mass in a direction of 28.5 degrees above the positive x axis. The mass is ...
October 1, 2011 by Jon

Physics
A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x axis. The mass is ...
October 5, 2011 by Tina

ipc
Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2. pulling a television ...
November 4, 2009 by Anonymous

Physics
Two fraternities are in a tug of war. Theta Chi is pulling with a total force of 4,748 newtons to the east and Tau Kappa is pulling with a total force of 3,969 newtons to the west. What is the magnitude and direction of the resultant? Which team will win? Is it better to pull ...
November 27, 2012 by Amanda

Integrated Physics and Science
A crowbar is used as a lever. The effort force of 40 newtons moves 3 meters. The resistance force of 54 newtons moves 2 meters. What is the efficiency of the lever? A) 100% because energy must be conserved B) 90% C) 25% D) 18% i need help. i don't know how to figure this one out
January 10, 2011 by Nella

physics
A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x axis. The mass is ...
October 6, 2011 by Ashley

Science- physics
A balloon weighing 80 kg has a capacity of 1200 m3. If it is filled with helium, how great a payload can it support? The density of helium is 0.18 kg/m3 and the density of air is 1.30 kg/m3. Express your answer in Newtons. I know the answer is 12, 400 Newtons I just don't know...
October 23, 2011 by Hannah

physics
A force of 100 Newtons acts upwards on a mass of 50 kg, another force of 60 newtons acts on the same mass downwards. calculate the accleration in which direction will be the accleration
January 16, 2011 by Haley

government
PACs have been called “collection agencies” for interest groups. They were created to evade laws that forbid corporation and labor unions from giving money “directly” to federal candidates. These laws still exist. Aren’t the laws now a farce? Why does congress permit the law ...
October 19, 2008 by Anonymous

science
Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2. pulling a television ...
November 4, 2009 by please help(:

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 ...
November 27, 2012 by lili

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 ...
November 27, 2012 by lili

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 ...
November 27, 2012 by lili

science
Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters -12000J 2. pulling a television ...
November 5, 2009 by anonymous

social studies
how did the new laws affect the lives of americans in the year following the civil war? the new laws affected the lives of the americans in many ways. for instance, ( um, what are the new laws? if i know i'll be able to answer the question. i'll be on tonight until 8:00)
September 13, 2006 by Jasmine

physics
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. To accomplish this, the mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system What is the work done by ...
May 18, 2011 by Anonymous

physics
In the below case, in dynamics, how do i solve this pulley problem using newtons laws? here is the drawing picasaweb,google,co,uk/devanlevin/Album/photo#5219794055569750146 what is the acceleration of each of the bodies? the hanging body has a mass of 2kg the lying body has a ...
July 6, 2008 by devan

Physical Science
If the strength of gravity is 9.8 newtons per kilogram, that means: a. each newton of force equals 9.8 pounds. b. each pound of force equals 9.8 newtons. c. each newton of mass weighs 9.8 kilograms d. each kilogram of mass weighs 9.8 newtons
October 15, 2013 by unknown

Physics
An object with a mass of 12 kg slides 9 meters across a horizontal surface with a coefficient of kinetic friction of 0.22. For the duration of the slide an external force, F1, with a magnitude of 43 Newtons acts on the mass in the positive y direction while another force, F2, ...
October 31, 2012 by Chelsea

Physics
An object with a mass of 12 kg slides 9 meters across a horizontal surface with a coefficient of kinetic friction of 0.22. For the duration of the slide an external force, F1, with a magnitude of 43 Newtons acts on the mass in the positive y direction while another force, F2, ...
October 31, 2012 by Chelsea

HISTORY
IS U.S. Congress prohibited from passing laws that might conflict with state laws
November 11, 2010 by CARNITA

Science
How can we use Kepler's laws or Newton's laws to learn about these objects?
July 26, 2012 by David

physics
three forces act on a ring. The net force on the ring is zero. One force is at an angle of 30 degrees with a magnitude of 40 Newtons. A second force F acts at an angle theta . The tangent of the angle is tan theta = 3 / ã 3 . If the third force is n3 Newtons, what is n3?
January 12, 2012 by frank

physics
At a picnic, there is a contest in which hoses are used to shoot water at a beach ball from three directions. As a result, three forces act on the ball, F1, F2, and F3 (see drawing). The magitudes of 1 and 2 are F1 = 55.0 newtons and F2 = 95.0 newtons. Using a scale drawing ...
September 12, 2010 by Jane

physics
three forces act on a ring. The net force on the ring is zero. One force is at an angle of 30 degrees with a magnitude of n1 Newtons. A second force F acts at an angle theta . The tangent of the angle is tan theta = 3 / 1.73 . If the third force is n3 Newtons, what is n3? look...
January 12, 2012 by frank

general ethics question
Some industries and businesses have their own uniquely applicable laws and standards. In this thread, let's share our own experiences with industry standards. What field are you in? Are there specific laws and standards associated with this industry? Why are they in place? Are...
November 8, 2010 by Anonymous

PHYSICS PLEASE HELP !!!!!
An object with a mass of 13 kg slides 5 meters across a horizontal surface with a coefficient of kinetic friction of 0.38. For the duration of the slide an external force, F1, acts on the mass in the positive y direction while another force, F2, has a magnitude of 67 Newtons ...
October 27, 2011 by Amanda

science
discuss the laws of electrostatic charges. for each of these laws, describe a lab activity you did which demonstrated the law
December 5, 2010 by Anonymous

physics
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. The mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system. What is the work done by the block and tackle ...
March 17, 2011 by jay

Physics
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. To accomplish this, the mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system. What is the work done by ...
March 23, 2011 by John

physics
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. To accomplish this, the mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system. What is the work done by ...
March 24, 2011 by John

Managment
Is it necessary to have government structures to interpret and enforce laws? What would it be like if there were no laws in place?
December 8, 2008 by Will

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