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October 25, 2014

Search: The force acting on a particle varies as shown in the figure. (The x axis is marked in increments of

Number of results: 32,093

physics
In an isometric exercise a person places a hand on a scale and pushes vertically downward, keeping the forearm horizontal. This is possible because the triceps muscle applies an upward force perpendicular to the arm, as the figure indicates. The forearm weighs 21.6 N and has a...
December 12, 2011 by Ghazlan

Physics
A string is wrapped around a pulley of radius .20m and momentum of inertia .40 kgm^2. The string is pulled with a force of 28 N. what is the magnitude of the resulting angular acceleration? Can someone please go through the steps or at least guide me through them. I missed a ...
July 8, 2012 by hayley

Physics
A string is wrapped around a pulley of radius .20m and momentum of inertia .40 kgm^2. The string is pulled with a force of 28 N. what is the magnitude of the resulting angular acceleration? Can someone please go through the steps or at least guide me through them. I missed a ...
July 8, 2012 by hayley

physics
In the figure below, a square of edge length s is formed by four spheres of masses, m1, m2, m3, and m4. What is the x-component and the y-component of the net gravitational force from them on a central sphere of mass m5. State your answers in terms of the given variables. (Use...
April 11, 2013 by brookel

Social Studies
One reason for the difference between average temperatures in Rome when in Jan. the average temperature is 11 degrees Celsius and July average degree is 30 degree Celsius is: The amount of carbon dioxide present in the atmosphere The tilt of the Earth of its axis The tidal ...
October 22, 2014 by Sue

algebra
i need help with my math problem: x varies directly as the square of s and inversely as t. how does x change when s is doubled? when both x and t are doubled?
May 26, 2008 by mindy

college algebra
Find the variation constant and write a formula that expresses the indicated variation. c varies inversely as d, and c=5 when d = 2.
April 23, 2010 by BJ

Algebra II
If Y varies inversely as X^2, determine what Y would be if X=2 and another point on the equation is (1,8) How would I go about working this problem out?
June 25, 2012 by Greg B.

algebra
Show all steps Find the value of y fora given value of x if y varies directly with x If y =-252 when x=84, what is y when x=74?
March 11, 2014 by snow

physics
A satellite that is spinning clockwise has four low-mass solar panels sticking out as shown; the mass of the satellite is 750 kg. A tiny meteor of mass 2 kg traveling at high speed rips through one of the solar panels and continues in the same direction but at reduced speed. ...
June 9, 2011 by Daiyo

math
86 88 80 71 62 75 66 68 (degrees) which sentence best describes the data? a- the temperatures vary by 26degrees b-the interquartile range is 15degrees c-the median temperature os 71degrees d-the lowest temperature is 66degrees i marked out c and d but i cant decide on a or b ...
March 15, 2009 by whitney

Math
1. the points A (3,5) and B (6,2) are reflected over the y-axis. find the area of the figure formed by joining the points. 2. Liza wants tostart a small business of making souvenir items for sale. the fixed cost is 1200.00. the cost of making each souvenir is 30.00, and she ...
September 22, 2013 by Yana

Physics
A book whose mass is 3 kg is projected up a long 40 degree incline with an initial speed of 25 m/s The coefficient of kinetic friction between the book and the Mane is 0.20. a. Find the magnitude of the friction force acting on the book as it moves up the plane. b. For how ...
November 19, 2006 by QT

Physics please check
A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 88 kg. A person pushes on the outer edge of one pane with a force of F = 53 N that is directed perpendicular to the pane. Determine the magnitude of the door's angular ...
March 26, 2007 by Jim

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 12, 2014 by Anonymous

physics
Newton was holding an apple of mass 120 g and thinking about the gravitational forces exerted on the apple by himself and by the Sun. Calculate the magnitude of the gravitational force acting on the apple due to Newton, the Sun, and the Earth, assuming that the distance from ...
October 30, 2011 by mymi

Physics - forces acting at an angle
The physics of tobogganing and forces at an angle: A child is tobogganing down a hillside. The child and the toboggan together have a mass of 50.0kg. The slope is at an angle of 30.0 degrees to the horizontal. Assume that the positive y-direction is pointing in the direction ...
January 5, 2013 by Leo

physics
A long solenoid ( radius = 1.4 cm) has a current of a 0.34 A in its winding. A long wire carrying a current of 18 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the solenoid? (Hint: ...
October 28, 2010 by mohab

Vector Calculus
An airplane is traveling in the direction 20degrees west of north at 700 km/hr. Find the component form of velocity of the airplane assuming that the positive x-axis represents due east and the positive y-axis represents due north.
January 26, 2013 by Melissa

Physics
An infinite straight wire carrying a current I=5 A flowing to the right is placed above a rectangular loop of wire with width w=11 cm and length L=27 cm, as shown in the figure below. The distance from the infinite wire to the closest side of the rectangle is h=1.7 cm. The ...
June 14, 2013 by Annoyingmous

Physics
An infinite straight wire carrying a current I=5 A flowing to the right is placed above a rectangular loop of wire with width w=11 cm and length L=27 cm, as shown in the figure below. The distance from the infinite wire to the closest side of the rectangle is h=1.7 cm. The ...
June 15, 2013 by Annoyingmous

Physics
A race car driver drives her 1500 kg car around a circular turn, which is banked at an angle of 20 degrees to the horizontal. If the car is traveling around the frictionless curve of radius 100m, a) What is providing the center-seeking force on the car? (ie. centripetal force...
December 1, 2009 by Anonymous

Calculus help!
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 square ...
February 26, 2008 by anonymous

trig
a circular chimney pipe with an 8-inch diameter passes vertically from a heater through a metal plate in the roof. the plate has an elliptical hole that measures 8 inches along one axis. if the roof is slanted at an angel of 40 degrees with the horizontal, what is the length ...
June 29, 2012 by luckybee

Math-oops forgot info
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 5, 2013 by PLEASE HELP

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
what is the equal and opposite force the force of friction like if a block is at rest on a table static friction is stil exerted by the table onto the block keeping it from moving what is the equal and opposite force of this force?
September 3, 2009 by physics

Physics
A projectile mass of 0.500 kg is shot straight up with an initial speed of 28.0 m/s. A. How high would it go if there were no air friction? I got this answer, it is 40 m. B. If the projectile rises to a maximum height of only 34.0 m, determine the magnitude of the average ...
March 7, 2012 by Mariah

phy
A velodrome is built for use in the Olympics (see the figure below). The radius of curvature of the surface is 17.1 m. At what angle should the surface be banked for cyclists moving at 11 m/s? (Choose an angle so that no frictional force is needed to keep the cyclists in their...
February 19, 2013 by faaash

science
a 100 pound life guard dives underwater to save a 150 pound person who is drowning the life guard will be able to lift the person to the surface because a:the buoyant force acts as an upward force on the person b:the force of gravity is less in water c:the force of water is ...
April 28, 2013 by jj

Physics
A mass m = 13 kg is connected to two different springs, one on the left and another on the right. It is displaced a distance x to the right from its equilibrium position. (Take k1 = 115 N/m and k2 = 198 N/m.) (a) What is the net force acting on the mass? (Use any variable or ...
July 13, 2012 by Bruce

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
two dogs pull horizontally on ropes attached to a post; the angle between the rope is 70deg. dog A exerts a force of 268N and dog B exerts a force of 310N. find the magnitude of the resultant force. and the angle the resultant force makes with dog A`s rope.
September 20, 2011 by Anthony

Physics
two dogs pull horizontally on ropes attached to a post; the angle between the rope is 70deg. dog A exerts a force of 268N and dog B exerts a force of 310N. find the magnitude of the resultant force. and the angle the resultant force makes with dog A`s rope.
September 20, 2011 by Anthony

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 = n2 / 3 . If the third force is n3 Newtons, what is n3? ...
January 12, 2012 by frank

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 = n2 / 3 . If the third force is n3 Newtons, what is n3? ...
January 12, 2012 by frank

Physics
Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 75 kg, who is 0.5 m from the baby. N Which exerts more gravitational force on the baby, Mars or the obstetrician, given that Mars has a mass of 6.4 1023 kg and is 8. 1010 m from ...
October 25, 2012 by Sharvani

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)x, 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

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

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

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
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

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

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
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 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
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

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

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
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
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

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

College Physics
Consider a rock thrown off a bridge of height 78.5 m at an angle = 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, help! urgent!
A positive point charge q = +2.50 nC is located at x = 1.20 m and a negative charge of {2q = {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

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

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

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 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

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

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

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
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

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

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

Physics
Halleys comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halleys comet in astronomical units (1 AU is equal to the semi-major axis of the Earths 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

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