Monday

October 20, 2014

October 20, 2014

Number of results: 31,954

**physics**

Instructions for finding a buried treasure include the following: Go 73.0 paces at 234°, turn to 135° and walk 122 paces, then travel 120 paces at 167°. The angles are measured counterclockwise from an axis pointing to the east, the + x direction. Determine the resultant ...
*September 22, 2014 by afiadkay*

**Economics**

I have created a scatter chart for supply and demand but the x and y axis are wrong and need to be switched. I have tried and tried to switch them....with no success.....I'm using excel 2007....how do you switch the x and y axis in a scatter chart! Thanks SHellie
*September 6, 2009 by Shellie*

**physics**

A soccer ball leaves the foot of a player with an intitial velocity of 22 m/s at an angle of 30 degrees above the positive x-axis. After flying through the air, the ball lands with a velocity of m/s at an angle of degrees above the x-axis
*September 7, 2012 by mark*

**Math-geometry**

If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180 about the z axis and +90 about the x axis, how many dots does each face have after the rotation?
*March 9, 2013 by PLEASE HELP*

**Math-geometry**

If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180 about the z axis and +90 about the x axis, how many dots does each face have after the rotation?
*March 9, 2013 by PLEASE HELP*

**Physics- so confused!!**

A bullet with a mass of 5.40 g is fired horizontally at two blocks resting on a smooth and frictionless table top as shown in the Figure. The bullet passes through the first 1.20 kg block, and embeds itself in a second 1.20 kg block. Speeds v1 = 3.90 m/s and v2 = 1.70 m/s, are...
*March 23, 2013 by Julia*

**Physics**

A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle. There is a 15. m drop and the horizontal distance originally planned was 60. m but it turns out the canyon is really 65.7 m across. If he desires a 3.2-second flight time, (a) what is the ...
*December 8, 2013 by Emily*

**Algebra2 ( Check)**

Will you please check my work for me. 1)The equation of a parabola is shown. y=1/14X^2. What are the coordinates of the focus? (0,-3.5) <---- (0,-4) (0,7) 2)The equation x2 + (y + 3)2 = 36 models the boundary on a local map for which Darren can hear his friend Tom on his ...
*June 18, 2012 by Anonymous*

**algebra**

Can someone check my answers on exploring conic sections? 1. Graph x2 + y2 = 9. What are its lines of symmetry? Every line through the center is a line of symmetry. The y-axis and the x-axis are lines of symmetry.( my choice) Every line through the center is a line of symmetry...
*February 19, 2013 by Lee*

**physics multiple choice**

A 3.00 lb. physics book rests on an ordinary scale that is placed on a horizontal table. The reaction force to the downward 3.00 lb force on the book is A. an upward 3.00 lb force on the scale due to the table. B.an upward 3.00 lb force on the book due to the scale. C.an ...
*February 2, 2011 by mely*

**physics multiple choice**

A 3.00 lb. physics book rests on an ordinary scale that is placed on a horizontal table. The reaction force to the downward 3.00 lb force on the book is A. an upward 3.00 lb force on the scale due to the table. B.an upward 3.00 lb force on the book due to the scale. C.an ...
*February 2, 2011 by andrea*

**Science**

4)Explain why,when a soccer ball is kicked, the action and reaction forces don't cancel each other. a)The force of the player's foot on the ball greater than the force on the ball on the player's foot. b)They act on two different objects. c)The reaction force happens after the...
*March 14, 2010 by Ira*

**Physics**

PLEASE HELP WITH AS MANY AS POSSIBLE... I AM TERRIBLY CONFUSED. 1. A charge moves a distance of 1.7 cm in the direction of a uniform electric field having a magnitude of 200 N/C. The electrical potential energy of the charge decreases by 9.69095 × 10−19 J as it moves. ...
*February 16, 2010 by Jonathan*

**Physics**

Imagine a fender bender between a large truck and a small car. During the impact, Choose one answer. a. the truck exerts a greater amount of force on the car than the car exerts on the truck b. the car exerts a greater amount of force on the truck than the truck exerts on the ...
*February 8, 2013 by Kirk*

**Econ Help**

Trying to study for test, don't understand. (3) Suppose that the slope of a curve showing the relationship between the number of burglaries per month (on the vertical axis) and the number of police officers (on the horizontal axis) is –0.60. a. Compute the change in the number...
*September 3, 2007 by Robert*

**chemistry**

A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 152 cm and makes an angle of 125° with the positive x axis. The resultant displacement has a magnitude of 150 cm and is directed at an angle of 35.0° to the positive x axis...
*January 25, 2010 by tea*

**Physics**

A point charge Q1=−2 μC is located at x=0, and a point charge Q2=+8 μC is placed at x=−0.5 m on the x-axis of a cartesian coordinate system.The goal of this problem is to determine the electric field, E⃗ (x)=E(x)xˆ, at various points along the x-...
*February 21, 2013 by Anonymous*

**Science/physics**

I done the problem and was wondering if my answer is right I got 1.87 and then 12.4 degrees above x axis please help At time t = 0 s, a puck is sliding on a horizontal table with a velocity 4.60 m/s, 32.0° above the +x axis. As the puck slides, a constant acceleration acts on ...
*September 14, 2014 by Kate*

**Math - PreCalc (12th Grade)**

If the length of the minor axis of an ellipse is 6 units and the length of the major axis is 10 units, how far from the center are the foci located? A) 4 units B) 2 units C) √4 units D) √8 units E) 5 units
*March 19, 2014 by Shawna*

**physics**

it takes 100 N to pull and object up an inclined plane. the gravitional force on the object is 600 N what is the load force in this case? what is the effort force in this case? what is the mechanical advantage?
*November 10, 2011 by mdm*

**Science**

A hirozontal force F works on a body of mass m1 and accelerates it by 5m/s^2. The same magnitude of horizontal force is exerted to another body of mass m2, which accerelates it by 2m/s^2. If m1 and m2 are combined, the acceleration provided by the force F is ...
*December 1, 2012 by Dwi*

**physics**

two forces 20N each are inclined at 100 degree to each other.find the single force that will; replace the given force system balance the given force system
*January 16, 2013 by rezny*

**physics**

Two people are pushing a disabled car. One exerts a force of 400 N east, the other a force of 200 N east. What is the net force exerted on the car?
*November 5, 2013 by Anonymous*

**Science**

A 2kg ball at rest experiences two forces The force on the left is 13.2 N and the force on the right is 15.4 N Calculate the net force in newtons on the ball as it moves to the left. Subtract 15.4 and 13.2?
*October 2, 2014 by Coleson*

**Physics 30**

inquiry lab determining the refractive index of a variety of materials (Snell's Law Lab): Basically this lab: We us a polar coordinate paper and a semicircular shaped containers which we switch between, which are composed of different material. We shine a narrow light through ...
*October 11, 2014 by Lucy*

**physics**

A cylindrical space colony 8 km in radius and 60 km long has been proposed as living quarters for future space explorers. Such a habitat would have cities, land and lakes on the inside surface and air and clouds in the center. All this would be held in place by the rotation of...
*June 25, 2010 by anon*

**Physics**

A force of 3.00 N acts through a distance of 12 m in the direction of the force.Find the work done. If I recall correctly, work=force*distance. The units should be newton-meters. 3*12=36
*September 9, 2006 by fluffy*

**Physics**

I have a problem where I need the force exerted by an object onto a scale. The object weighs 22 lbs. What is the force? Do I need to multiply that by 32.2 ft/s^2? What are the US units for force and what is it in this situation?
*February 25, 2011 by Morgan*

**PHYSICS**

Vector V1 is 6.29 units long and points along the negative x axis. Vector V2 is 4.23 units long and points at +35.0° to the +x axis. (a) what is V1x & V1y (b) what is the magnitude & direction (degrees) ***im confused on what my x & y is to plug into the magnitude equation***
*September 30, 2012 by please help! part 2*

**College Physics**

Consider a rock thrown off a bridge of height 78.5 m at an angle è = 25° with respect to the horizontal as shown in Figure P4.20. The initial speed of the rock is 15.6 m/s. Find the following quantities: (a) the maximum height reached by the rock (b) the time it takes the rock...
*September 12, 2011 by HELP*

**physics **

A particle vibrates in Simple Harmonic Motion with amplitude. What will be its displacement in one time-period if you attach a mass to the spring from its initial equilibrium position, it vibrates forever in simple harmonic motion. Why doesn't it come to rest after stretching ...
*February 26, 2011 by calous --- HELP PLEASEE!!!*

**Physics**

an adult 68 kg cheetah can accelerate from rest to 20.1 m/s (45 mph) in 2.0 s. Assuming constant acceleration, (a) find the net external force causing this acceleration. (b) where does the force come from? that is, what exerts the force on the cheetah?
*October 4, 2009 by Adam*

**mathematics**

two springs and two masses are attached in a straight line on a horizontal frictionless surface. the system is set in motion by given external force f(t) acting on the right hand mass m2. we denoted by x(t)the displacement(to the right) of mass m1 from static equilibrium ...
*October 17, 2010 by zainab*

**Biology**

If you inherited an allele for blue eyes from your mother and an allele for brown eyes from your father, you are A) tetraploid B) homozygous C) haploid D) heterozygous I got D marked wrong, I'm so confused. Thanks.
*October 19, 2010 by estela*

**geometry**

I have tried to figure this out, but I came up with two different answers. THe answers I got were 33(first), then 33. What is the rotational symmetrt of a star-like figure, with 24 points? How did youo get the answer so I can understand?
*November 3, 2009 by KAYTLYN*

**Math**

I cannot remember how to figure out this problem. "Ten friends share 3 pizzas equally. What fraction of a whole pizza does each friend get?" Would it be 3/10? Not looking for the actual answer but really how i can figure it out. Thank you!
*March 20, 2011 by Renee*

**Physics**

Vector A has a magnitude of 7 and is at an angle of 22.5 degrees measured counter-clockwise from the x axis. Vector B has a magnitude of 12 and is at an angle of 110.4 degrees measured counter-clockwise from the x axis. Vector C has a magnitude of 6 and is at an angle of 180 ...
*September 23, 2011 by JJ*

**Physics (electricity and Magnetism)**

A long straight and thin wire has a charge Q per unit length. It is also carrying a current I. A point charge is moving with a velocity v parallel to the conductor, at a distance d from it. Find the velocity v, supposing a correct direction for the current and the current ...
*June 1, 2014 by John*

**Physics**

The bond between protons and neutrons inside the atomic nucleus is formed by the strong interaction. In classical terms, we can think of it as protons and neutrons exchanging a "meson," a kind of fundamental particle between them. Let's estimate the range of the interaction ...
*June 24, 2013 by Antony*

**physics, help! urgent!**

A positive point charge q = +2.50 nC is located at x = 1.20 m and a negative charge of ƒ{2q = ƒ{5.00 nC is located at the origin. (a) Sketch the electric potential verses x for points on the x-axis in the range -1.50 m < x < 1.50 m. (b) Find a symbolic expression for the...
*November 14, 2012 by Ella*

**science**

What is matter in which every particle is identical?
*December 18, 2008 by nolan*

**science**

what is the particle diagram for burning magnesium ?
*February 1, 2009 by kelisha*

**Atoms and Elements**

what is the particle theory of matter?
*May 21, 2009 by Brooke*

**science**

i want to know what a particle model is for magnesium oxide
*December 1, 2009 by dharmesha*

**Chemistry**

What is the representative particle for a salt, nacl2?
*February 3, 2010 by Adrian*

**science**

what is the particle size of solutions and suspension?
*February 11, 2010 by Annie!*

**Chemistry**

What happens to the beta particle when stopped
*September 22, 2010 by Jennifer*

**chemistry**

What's the particle diagram of Carbon monoxide? Thank you
*February 14, 2011 by Ellie*

**chemistry**

what is hibs boson it is a gold particle
*April 24, 2012 by frank*

**chemistry**

smallest particle of a covalent compound?
*January 6, 2013 by cassie*

**science**

what is the difference between an element and a particle?
*March 16, 2013 by Anonymous*

**Physics**

An alpha particle has a mass of 6.64x10^-27
*September 11, 2013 by Anonymous*

**magnetic field**

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?
*December 1, 2013 by manu*

**Physics**

Mathematically determine the resultant force if two forces A and B act on an object. Force A is 85N and is at an angle of 20• to the horizontal. Force B is 125N and is at an angle of 60• to the horizontal.
*October 11, 2012 by Christian*

**physics**

revolving astronomer are subjected to acceleration by force the centripetal force against the centrifuge the radius of the centrifuge is 10 M .Calculate centripetal force on an astronaunt of mass 9.9 KG?
*January 15, 2014 by samra deme*

**I don't understand this chemistry problem?**

The question reads: Place the following elements in order of decreasing atomic size: selenium, chlorine, fluorine, rubidium, calcium, and sulfur. I looked this up on a periodic table and my answer was: Rb, Se, Ca, Cl, F, S. This is still marked wrong, and I don't know why.
*December 3, 2012 by Amy*

**physics**

A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 21.12 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.
*October 5, 2011 by sarah*

**Anyone ??? Physics**

In the figure below, block 1 of mass m1 = 3.0 kg and block 2 of mass m2 = 1.0 kg are connected by a string of negligible mass. Block 2 is pushed by force F of magnitude 30 N and angle θ = 20°. The coefficient of kinetic friction between each block and the horizontal ...
*October 26, 2012 by Josh36*

**Physics**

A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 12.40 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.
*October 13, 2013 by Blue*

**PHYSICS(help)**

A small block of mass m=1 kg glides down (without friction) a circular track of radius R=2 m, starting from rest at height R. At the bottom of the track it hits a massless relaxed spring with spring constant k= 11 N/m, which starts to be compressed as the block continues to ...
*January 10, 2014 by Anonymous*

**Intermediate Algebra**

y varies directly as the cube of x and inversely as the square of z. If y is 30 when x is 2 and z is 4: b) Find the equation that models this data. c) Find the value of y when x is 3 and z is 2.
*April 28, 2012 by Angie*

**physics**

how much will the length of a 1.0 km section of concrete highway change if the temperature varies from -15 Celsius in the winter to 41 Celsius in the summer?
*July 17, 2012 by gen*

**Math**

Can someone tell me if I have this right? Thanks! Question: P varies directly as Q can be written as P = kQ. True Or False. My answer: True
*October 3, 2014 by Lola*

**Physics**

A 1900 car starts from rest and drives around a flat 50--diameter circular track. The forward force provided by the car's drive wheels is a constant 1300 . A) What is the magnitude of the car's acceleration at ? B) What is the direction of the car's acceleration at ? Give the ...
*March 15, 2011 by Dan*

**PHYSICS**

If the dummy is thrown forward with a force of 130.0 n while simultaneously being hit from side with a force of 4500.0n what force will the seat belt have exert on the dummy to hold in seat
*November 28, 2011 by BRY*

**Physics**

If the two equal charges separated with one unit (one meter) has a force of 20 N. What will be the force if the distance is increased by 2 units (two meters)? What is the value of the new force compared to the old?
*December 5, 2012 by Anonymous*

**Physics**

If in a manufacturing company they want to produce a system where the force F1 must be 10% of the output force F2.if the area of the pistol (where F1 is applied)is 450 spuare milimetre.calculate the diameter of the pistol two where F2 is an output force
*April 23, 2013 by Emmah*

**Physics question **

Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced a force of approximately 260,000 N acting on its torso when it hit the ground. Question 1 Assuming the torso has a mass of 3800 kg , find the magnitude of the torso's upward ...
*September 23, 2009 by Mia*

**math**

x is partly constant and partly varies as y, when y=2,x=0 and when y=6,x=20.find x when y=3
*January 15, 2014 by adeola*

**physics**

Three masses are aligned along the x axis of a rectangular coordinate system so that a 2 kg mass is at the origin, a 3kg is at (2,0) m, and a 4 kg mass is at (4,0) m. Find (a) the gravitational force exerted on the 4 kg mass by the other two masses and (b) the magnitude and ...
*December 9, 2007 by Anonymous*

**Physics**

A traffic light hangs from a pole as shown. The uniform aluminum pole AB is 7.70m long and has a mass of 11.0kg. The mass of the traffic light is 27.5m. 1. Determine the tension in the horizontal massless cable CD. 2. Determine the vertical and horizontal components of the ...
*November 2, 2012 by Kristen*

**physical**

Problem 1 A goalkeeper kicks a ball of mass 400 g in the air, and reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. During its flight, the ball experiences a horizontal friction force of 3 N from a ...
*December 8, 2011 by sumi*

**physical**

Problem 1 A goalkeeper kicks a ball of mass 400 g in the air, and reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. During its flight, the ball experiences a horizontal friction force of 3 N from a ...
*December 8, 2011 by sumi*

**Physics**

Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit).
*May 4, 2011 by Reese*

**Physics**

Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit
*May 5, 2011 by Reese*

**physics**

A solid cylinder of mass 20 kg rotate about its axis of rotation with angular speed 100m/s. The radius of the cylinder is 0.25m. What is the K.E. associated with the rotation of the cylinder what is the magnitude of the angular momentum of the cylinder about its axis
*March 16, 2013 by shubham mahur*

**Calculus**

find the points on the curve x^2+xy+y^2=7 (a) where the tangent is parallel to the x-axis and (b) where the tangent is parallel to the y-axis. In the latter case, dy⁄dx is not defined, but dx⁄dy is. What value does dx⁄dy have at these points?
*October 23, 2012 by toma*

**algebra**

1)Write an equation for an ellipse if the endpoints of the major axis are at(1,6)and (1,-6)and the endpoints of the minor axis are at (5,0)and (-3,0) answer= (x-1)^2/36+y^2/16=1 2)Which is the equation of an ellipse with center (-4,2)and a horizontal major axis? answer= (x-4)^...
*August 20, 2007 by Marissa*

**college physics**

A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 140 cm and makes an angle of 130° with the positive x axis. The resultant displacement has a magnitude of 144 cm and is directed at an angle of 30.0° to the positive x axis...
*September 28, 2010 by caitlin*

**physics**

A man pushing a mop across a floor causes the map to undergo two displacements. The first has a magnitude of 200 cm and makes an angle of 120° with the positive x axis. The resultant displacement has a magnitude of 240 cm and is directed at an angle of 60.0° to the positive x ...
*September 10, 2011 by grace*

**Calculus**

a) Find the volume formed by rotating the region enclosed by x = 6y and y^3 = x with y greater than, equal to 0 about the y-axis. b) Find the volume of the solid obtained by rotating the region bounded by y = 4x^2, x = 1, and y = 0 about the x-axis. c) Find the volume of the ...
*November 3, 2011 by Beth*

**CALC -- integrals!**

2. f(x)=e^x for 0<x<2. Imagine that you have graphed this function in the x-y plane. For each value of x in the domain, erect a square above the curve perpendicular to the x-axis and parallel to the y-z plane where one side runs from the x-axis to the curve. So the ...
*February 26, 2008 by anonymous*

**physics multiple choice**

A force F is required to push a crate along a rough horizontal floor at a constant speed V with friction present. What force is needed to push this crate along the same floor at a constant speed 3V if friction is the same as before? A. A constant force 3F is needed. B. A force...
*February 2, 2011 by mely*

**physics multiple choice**

A force F is required to push a crate along a rough horizontal floor at a constant speed V with friction present. What force is needed to push this crate along the same floor at a constant speed 3V if friction is the same as before? A. A constant force 3F is needed. B. A force...
*February 2, 2011 by andrea*

**Chemistry**

The crystal structure of cesium chloride (CsCl) is shown in the figure below. The dark spheres represent atoms of Cl. Identify the crystal system: Cubic Tetragonal Orthorhombic Rhombohedral Hexagonal Monoclinic Triclinic Identify the Bravais lattice: Simple cubic Body ...
*November 22, 2012 by c*

**math**

On a straight line graph, if the line is going this way \ and it goes through 5 on the x axis and 4 on the y axis then what is it's gradient? How do I work this out? Thanks xx You also have to specify a point that the line goes through. Does it pass through the origin (x=0, y=...
*March 11, 2007 by Me*

**Soil Science!**

Given the following soil properties, find the % of water by weight at soil saturation with water: Moist sample weight: 202.16 Oven dry sample weight: 197.8 Bulk Volume:118.86 Particle Volume Density: 73.73 Soil bulk density: 1.66 soil particle density: 2.68 % pore space: 38.06...
*October 7, 2014 by Udyr*

**Soil Science, HELP!!**

Given the following soil properties, find the % of water by weight at soil saturation with water: Moist sample weight: 202.16 Oven dry sample weight: 197.8 Bulk Volume:118.86 Particle Volume Density: 73.73 Soil bulk density: 1.66 soil particle density: 2.68 % pore space: 38.06...
*October 8, 2014 by Trenton*

**Chemistry Lab**

What is a "common-ion effect", and how does it affect the molar solubility of a salt? Why can either phenolphtalein or methyl orange be used for an HCl-NaOH titration, but only phenophtalein is suitable for an acetic acid-NaOH titration? The answer to your first question is ...
*June 11, 2006 by Anonymous*

**Physics**

Two charges are placed on the x axis. One of the charges (q1 = +9.3 µC) is at x1 = +3.4 cm and the other (q2 = -20 µC) is at x2 = +8.9 cm. (a) Find the net electric field (magnitude and direction) at x = 0 cm. (Use the sign of your answer to indicate the direction along the x-...
*January 28, 2013 by Jasmine*

**physics**

How does an increase in mass affect the magnitude of gravitational force? Force= mass*constant If mass increases, the force....
*January 13, 2007 by Anonymous*

**Physics**

The Spent Rocket Parts: During launches, rockets often discard parts. A certain rocket starts from rest on the launch pad and accelerates upward at a steady 3.3 m/s2. When it is 235 m above the launch pad, the rocket discards a used fuel canister by simply disconnecting it. ...
*November 20, 2012 by Zalak*

**Physics help needed**

In the figure below, block 1 of mass m1 = 3.0 kg and block 2 of mass m2 = 1.0 kg are connected by a string of negligible mass. Block 2 is pushed by force F of magnitude 30 N and angle θ = 20°. The coefficient of kinetic friction between each block and the horizontal ...
*October 26, 2012 by The master*

**Physics**

I have no idea of how to solve this problem. Please help. lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray itself is 0.200 kg, and its center of gravity is located at its geometrical center. On the tray is a 1.00 kg plate of food and a 0....
*March 22, 2007 by Jim*

**Physics**

I know a steady force produces a steadily increasing velocity and a constant acceleration. But what happens when you increase the force by doubling or tripling it? I think the acceleration would follow force changes but what about velocity?
*September 25, 2011 by Jen*

**physics**

What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45? Assume the force is applied parallel to the incline and the velocity is constant. (Enter the magnitude of the force.)
*October 29, 2012 by Tom*

**physics**

What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45? Assume the force is applied parallel to the incline and the velocity is constant. (Enter the magnitude of the force.)
*October 29, 2012 by Tom*

**physics**

What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45? Assume the force is applied parallel to the incline and the velocity is constant. (Enter the magnitude of the force.)
*October 29, 2012 by Tom*

**physics**

What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45? Assume the force is applied parallel to the incline and the velocity is constant. (Enter the magnitude of the force.)
*October 30, 2012 by Tom*

**physics repost**

Three masses are aligned along the x axis of a rectangular coordinate system so that a 2 kg mass is at the origin, a 3kg is at (2,0) m, and a 4 kg mass is at (4,0) m. Find (a) the gravitational force exerted on the 4 kg mass by the other two masses and (b) the magnitude and ...
*December 9, 2007 by Anonymous*

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