Sunday
December 21, 2014

Search: An object is on a frictionless inclined plane. The plane is inclined at an angle of 24.9 degrees with the horizontal. Using the accerlation due gravity from your reference table. What is the magnitude of object's acceleration?

Number of results: 30,225

Physics
(a) what Is the density of an object that is 14% submerged when floating in water at 0 degrees Celsius? (b) what percentage of the object will be submerged if it is placed in ethanol at 0 degrees Celsius?
November 15, 2012 by Anonymous

math
in a pentagon each of the two angles measuer 76 degrees another angle measueres 111 degrees and the fourth measures 146 degrees. what is the measuer of the missing angle? what is it can you explain step by step please!
March 7, 2013 by Anonymous

Physics
One kind of slingshot consists of a pocket that holds a pebble and is whirled on a circle of radius r. The pebble is released from the circle at the angle θ so that it will hit the target. The angle in the drawing is 33.4. The distance to the target from the center of ...
September 23, 2012 by Ryan C.

Physics
One kind of slingshot consists of a pocket that holds a pebble and is whirled on a circle of radius r. The pebble is released from the circle at the angle θ so that it will hit the target. The angle in the drawing is 35.5. The distance to the target from the center of ...
September 28, 2012 by Eric

physic
Starting from rest, a car accelerates at 2.5 m/s^2 up a hill that is inclined 5.4 ^\circ above the horizontal. how far the car travel horizontally in 15s?
July 2, 2011 by Anonymous

physics
Inclined plain-----on Hypotenuse weight of 250 Newton is placed and the base distance is 9 m. What is the minimum force required to lift the weight up?
January 2, 2012 by Anonymous

Physica
The sum of two vectors A and B is maximum when both vectors are : A)parallel B) opposite in direction C) perpendicular to each other D) A inclined 45 with B E) none of the above
July 11, 2012 by Q8

Physica
The sum of two vectors A and B is maximum when both vectors are : A)parallel B) opposite in direction C) perpendicular to each other D) A inclined 45 with B E) none of the above
July 11, 2012 by Q9

Physica
The sum of two vectors A and B is maximum when both vectors are : A)parallel B) opposite in direction C) perpendicular to each other D) A inclined 45 with B E) none of the above
July 15, 2012 by Q8

Physics
Two blocks rest on two frictionless ramps. They are connected at the apex of each ramp by a string and pulley. The angle of ramp A with the ground is 45 degrees. Mass of Block B (on Ramp B) is 2 times that of Block A. What does the angle of Ramp B with the ground have to be in...
October 16, 2012 by Neil

math
a triangle has three internal angles. one angle measures 37 degrees another one measures 67 degrees. how many degrees does the third angle measure? 1) 28 2) 34 3) 76 4) 256 5) not anought information is given
May 10, 2010 by michael

Mechanics (M1) A level?
A block moves on a rough slope of length 10 m inclined at 30 degrees to the horizontal. The coefficiebt of friction between the block and the slope is 0.4. The block starts from rest at the top of the slope. a) Find the speed at which the block reaches the bottom of the slope...
April 29, 2012 by Jat

algebra 2
A commercial freight carrier is flying at a constant speed of 400mi/h and is traveling 4 mi east for every 3 mi north. A private plane is observed to be 210 mi due east to the commercial carrier, traveling 12 mi north for every for 5 mi west. a.If it is known that the two ...
January 2, 2011 by Songthan

trig
find the angle between vector U=<2,3> and V=<1,-5> answers: 88 degrees, 45 degrees, 135 degrees, or 92 degrees...?
May 17, 2012 by jake

Electrostatics
A linear charge rho L = 2.0 uC lies on the y-z plane. Find the electric flux passing through the plane extending from 0 to 1.0m in the x direction and from -infinity to infinity in the y direction. Alright, so the formula to use is: flux = (integral(integral)(Ds * dS)) where ...
February 28, 2008 by Dan

physics
a physical pendulum consists of a uniform solid disk (of radius R = 42.0 cm) supported in a vertical plane by a pivot located a distance d = 13.0 cm from the center of the disk. The disk is displaced by a small angle and released. What is the period of the resulting simple ...
January 9, 2011 by kylie

trig
a plane is flying at an altitude of x with the distance at 800 meters with an angle of 70 degress. what equation would you use to solve. tan70= x/800 tan70= 800/x sin70= x/800
January 26, 2011 by tom

Math
On an airplane,there are two seats on the left side in each row and three seats on the right side. There are 90 seats on the right side of the plane. a. How many seats are on the left side of the plane? b. How many seats are there altogether?
October 9, 2014 by Maria

Math
On an airplane, there are two seats on the left side in each row and three seats on the right side. There are 90 seats on the right side of the plane. How many seats are on the left side of the plane? How many seats are there altogether?
December 8, 2014 by Makenzey

Physics
A 0.30 kg stone attached to a 0.8 m long string is rotated in a horizontal plane. The string makes an angle of 15 with the horizontal. Determine the speed of the stone.
October 12, 2011 by Emily

General Physics
A 0.40 - kg object connected to light spring with a force constant of 19.6 N/m oscillates on a frictionless horizontal surface. If the spring is released from rest, determine the maximum speed of the object.
November 12, 2009 by Ellen

Tamucc
A 51kg object connected to a spring of 31N/m spring constant oscillates on a horizontal, frictionless surface with amplitude of 5cm. Find the speed of the object when when its position is 3cm.
July 7, 2011 by John

Physics
a pendulum bob with a mass of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 ...
January 26, 2011 by Erica L

Physics help
a pendulum bob with a mass of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 ...
January 26, 2011 by Erica L

Physics
The x component of vector A is -25 m and the y component is 40m a) what is the magnitude of vector A b)What is the angle between the direction of vector A and the positive direction of x? I got a) as 47.16m by for b) I am having trouble I should be getting 122 degrees for the ...
September 27, 2006 by jenny

Phyics
A ray of light strikes a mirror at an angle of 26 degrees to the normal. What is the angle of reflection? Answer in units of degrees .
February 27, 2011 by Maria

physics
Two projectiles A and B are projected at the same time in the same vertical plane. A is projected at a height of 2m above the ground making an angle of 30deg with the horizontal. B is projected with the velocity of 20m/s at an angle of 60deg with the horizontal. If they ...
April 29, 2012 by ridhi

physics
In a mall, a shopper rides up an escalator between floors. at the top of the escalator, the shopper turns right and walks 9.00m to store. the magnitude of the shopper's displacement from the bottom of the escalator is 16.0m. the vertical distance between the floors is 6.00m. ...
October 21, 2007 by ajo

Math
An airplane over the Pacific Ocean sights an atoll at an 7 angle of depression. If the plane is 850 m above the water, how many kilometers is it from a point 850 m directly above the atoll?
November 14, 2011 by dale

algebra
An airplane over the Pacific Ocean sights an atoll at an 7 angle of depression. If the plane is 663 m above the water, how many kilometers is it from a point 663 m directly above the atoll?
February 9, 2013 by Anonymous

physics!
A 64 kg skater, at rest on frictionless ice, tosses a 12 kg snowball with velocity by v = 53i+ 14.0j m/s, where the x- and y- axes are in the horizontal plane. Find x-component v(x) of the subsequent velocity of the skater. As well as Find y-component v(y) of the subsequent ...
March 23, 2012 by Eliana

Math
From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are, 6 degrees and 13 degrees, respectively. The points and the tower are in the same vertical plane and the ...
July 21, 2013 by jasmine

Geometry
In the triangle ABC, the measure of angle A=(5x+3)degrees, the measure of angle B=(8x-2)degrees, and the measure of angle C=(5x-1) degrees. Find the measure of each angle.
September 7, 2012 by Shelby

physics
a single bead can slide with negligible friction on a wire that is bent into circular loop of radius 15 cm an in the figure. the circle is always in a vertical plane and rotates steadily about its vertical diameter with a period of 0.450 s. the position of the bead is ...
September 28, 2013 by hosni

Physics
A 0.2 kg hockey puck is placed against a spring lying on a horizontal frictionless surface. The spring is compressed 0.2 m, with the hockey puck, and then released. The hockey puck when released is able to go up a frictionless slope with an angle of 30 degrees to a height of 0...
December 5, 2010 by Amy

My Friend Needs Help With a Calc Problem.
how does five degrees east of north keep a plain going north when the wind pushes the plain four point six degrees west of north? This is not calculus. It is a vector problem. THe wind is pushing the plane west. If you need the solution, to find the direction of the wind, a ...
October 12, 2006 by Sarah

Geometry
1. An airplane is flying at 36,000 feet directly above Lincoln, Nebraska. A little later the plane is flying at 28,000 feet directly above Des Moines, Iowa, which is 160 miles from Lincoln. A.assuming a CONSTANT rate of descent, what was the angle of descent? B. What is the ...
March 26, 2012 by Leah

physics
1)A 5.0 cm real object is placed at a distance of 30.0 cm from a concave mirror of focal length 10.0 cm. Find the location of the image. (30)(10)/5.0 15 or (30)(5.0)/10 60 I don't know which one 2)What must be the minimum height of a plane mirror so that a boy of height 162 cm...
April 7, 2008 by Jon

Physics
1) A jetliner, traveling northward, is landing with a speed of 69.3 m/s. Once the jet touches down, it has 787 m of runway in which to reduce its speed to 13.6 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take the direction of ...
May 27, 2012 by Hannah

Physics
A stunt motorcyclist is attempting to jump over a river of width 60m using a ramp which is inclined at 30 degrees to the horizontal. Assume the height of the ramp is small enough to be ignored in the calculations. a) What is the minimum speed the stunt motorcyclist would need ...
March 2, 2014 by Bonnie

pre-calc
two observers 3 miles apart and facing each other find that the angles of the elevation of a balloon in the same vertical plane with themselves are 28degree and 31 degree respectively.find the distance from the balloon to the observer located at the 31 angle?
November 6, 2012 by Haley

Physics I NEED HELP!!!
of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 degrees with the vertical. (b...
January 26, 2011 by Erica L

Physics I NEED HELP!!!
of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 degrees with the vertical. (b...
January 26, 2011 by Erica L

Trigonometry
in a diagram, PRS is a straight line. PQ = 9.2 cm, QS= 7.6cm and angle QPR =38 degrees.QR is perpendicular to PS. Calculate angle PQS to nearest 0.1 degrees
September 22, 2012 by zoya

Geometry
A circle of radius 1 is drawn in the plane. Four non-overlapping circles each of radius 1, are drawn (externally) tangential to the original circle. An angle is chosen uniformly at random in the interval [0,2). The probability that a half ray drawn from the centre of the ...
April 20, 2013 by Anonymous

physics
If the back of the truck is 1.0 above the ground and the ramp is inclined at 26, how much time do the workers have to get to the piano before it reaches the bottom of the ramp?
September 21, 2010 by DP

phusics
A car can slow down at 5.10 m/s2 without skidding when coming to rest on a level road. What would its acceleration be if the road were inclined at 12o uphill?
October 4, 2011 by william

physics
A wet bar of soap slides freely down a ramp 2.0 m long inclined at 6.8o. How long does it take to reach the bottom? Neglect friction.
April 11, 2012 by myra

Physics
A stationary arrangement of two crayon boxes and three cords. Box A has a mass of 11.0kg and is on a ramp at angle =30.0 degrees; box B has a mass of 7.00 kg and hangs on a cord. The cord connected to Box A is parallel to the ramp which is frictionless (a) What is the tension...
December 8, 2006 by Carla

Repost - Geometry question
"please help me" posted this earlier: If m angle sign 1=37 degrees what is m angle sign 4 My answer: 43 degrees which is wrong. Correct answer: 37 degrees I don't understand how to do this.
June 5, 2014 by Writeacher

math
find the measure of each angle (x+17)degrees and x degrees. This is a right angle, not sure how to set up this problem.
October 31, 2010 by gmoney

geometry
kite ABCD with angle A=60 degrees and angle C=90 degrees, diagonal DB=12 find the area and perimeter
November 30, 2010 by Kathy

trig
Find the reference angle for each given angle: a) 325 degrees b) 14pi/3 c) -190 degrees
January 26, 2012 by Anonymous

Physics
A book is launched up a frictionless ramp that has an angle of 35 degrees to the horizontal.If the Book's initial speed is 2.0 m/s^2 , how far up the ramp does it slide? I got 15.24. Any help would be greatly appreciated.
February 10, 2009 by Harold

Physics
A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
September 12, 2011 by Diane

Physics
A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
September 12, 2011 by Diane

English
I have a few doubts on two sentences. 1) Can you say that a TV programme is nice or beautiful? 2) Last night was the first episode. The first episode was last night. 3) Last night there was the first episode. In sentence 2 the subject is after the verb. When is this possible? ...
December 10, 2011 by Henry2

math:)
If the given point is on the terminal arm of an angle A in standard position, angle A is greater than or equal to 0 degrees and it is less than or equal to 180 degrees, find the measure of angle A, to the nearest tenth of a degree. a) (4,3) b) (12,5) c) (-6,8) d) (-24,7) ...
December 18, 2012 by Nicole

Physics
A block of mass 3 kg is at rest on an incline. The coefficient of state friction between the block and incline is 0.34. What is the maximum angle of the incline such that the block will not slide down the plane?
February 17, 2013 by Amy

geometry
Point C is in the interior of angle ABD. The measure of angle ABD is 40 degrees. The measure of angle DBC is 3x-5. If angle ABC is 22 degrees, what is "x"?
September 28, 2014 by David

physics
Two identical thin wires are oriented along the x and y axes. With current on x plane going North. Current on y plane going West.Both carry the same current I, and there is no electrical contact between the wires. The points A, B, C, D are each equidistant from both wires. A: ...
March 16, 2013 by Melissa

Plane and Spherical Trigonometry
A man walks 20 meters from point A to point B, Then he turns 80 degrees and walks 35 meters towards point C. How long is the distance AC? Draw the triangle
October 2, 2014 by Nathan

trigonometry
a clock has a dial face of 12 inches radius the minute hand is 9 inches while the hour hand is 6 inches the plane of rotation of the hour hand is 2 inches above the plane of rotation of the minute hand. Find the distance between the tips of the minute and hour hand at 5:40 am.
March 18, 2014 by Rose

dynamics
the 1500 kg automobile is travelling up the 20 degree inclined at a speed of 6 m/s , if the driver wishes to stop his car in a distance of 5m , determine the frictional force at the pavement which must be supplied by the rear wheels.
December 30, 2012 by umesh

geometry
This question is about the shape of a kite. LINE AC bisects ANGLE BCD and ANGLE BAC ANGLE BCD = 50 degrees ANGLE BAD = 80 degrees LINE DC = 10mm LINE BE = 3mm What is the area of the kite?
May 19, 2013 by beck

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

geometry
find measurement angle bac db and dc are paralell, da intersects bc, angle a is 65 degrees so i multipied by two and came up with the answer 130 degrees, is this correct? thanks
October 14, 2013 by ann

Physics -- check answers please
Light travelling in water is incident on air refracts at an angle of 27 degrees. What is the angle of incidence? my answer: 37 degrees
July 28, 2014 by Liz

Math 7 - Homework Question Check
12. Is the figure below a right triangle? On the lines below, explain how you determined your answer. Answer - The figure below is not a right triangle. The reason why it's not a right triangle is because this figure is a acute angle. Acute angle is less than 90 degrees and ...
April 16, 2012 by Laruen

geometry2
i need help with this problem.an airplane over the pacific sights an atoll at an 8 angle of depression. if the plane is 520 m above water, how many kilometers is it from a point 520 m directly above the center of the atoll?
April 26, 2012 by Remi

physics
The pilot of an aircraft wishes to fly due west in a 50.0 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 228 km/h. a) How many degrees from west should the aircraft head? Let clockwise be positive. Answer in units of degrees. b) What ...
October 15, 2014 by Danny

physics
an airplane is flying in a horizontal circle at a speed of 430 km/h if its wings are tilted 40 degrees to the horizontal what is the radius of the circle in which the plane is flying? assume that the required force is provided entirely by an "aerodynamic lift" that is ...
May 27, 2009 by chelsea

Physics
Two parallel, uniformly charged, infinitely long wires carry opposite charges with a linear charge density ? = 5 gC/m and are 8 cm apart. What is the magnitude and direction of the electric field at a point midway between them and 49 cm above the plane containing the two ...
February 17, 2012 by Long

Physics
A 10N block is attached to the wall by a rope on a frictionless surface. If the lower surface makes an angle of 30 degrees with the horizontal, calculate the (a) normal force (b) tension on the rope.
November 8, 2011 by Lexi

Calculus 3
Vectors The thrust of an airplane's engine produces a speed of 400 mph in still air. The wind velocity is given by <-20,30>. In what direction should the plane travel to fly due south? Give your answer as an angle from due south.
May 11, 2011 by Anonymous

Physics
An airplane flies 340 km due east, makes a right-angle turn, and then flies 390 km due north. Find the magnitude of the planes displace- ment from its starting point. Neglect the curvature of the earth. Answer in units of km
September 30, 2012 by Crystal

English
Can you please check if the two answers to the questions (3/4) are correct? It's really urgent. Thank you. 1)Jamal is planning a trip around the world on his motorbike with his friend Simon. 2)They are going to leave from London next week. Then they will drive across Europe, ...
April 30, 2011 by Henry1

physics
Consider a 20 cm long cylindrical glass of refractive index n=2.0. Left end of it is a concave spherical mirror with radius of curvature 12 cm for an object O inside the cylinder. The shape of the right end of the cylindrical glass is not known. If the object is at 10 cm to ...
October 16, 2011 by Karaokyanus

physics
A 45.4 kg sign is hanging in two wires as illustrated below. If angle A is 53.5 degrees and angle B is 29.6 degrees, what is the tension in the left wire? Give your answer in newtons
February 16, 2014 by Betty

Physics
A 275-gram ball bounces off a wall. The ball stays in a horizontal plane throughout the motion. The ball strikes the wall with a speed of 4.50 m/s at an angle of 𝜃 = 35.0o relative to the wall and rebounds with the same speed at the same angle. If the ball is in ...
May 27, 2014 by Tim

geometry
in triangle ABC, AC is produced to D. If angle A= 60 degrees and B= 85 degrees, find angle BCD
January 19, 2012 by carmela

physics
a ladder AP of length 5m inclined to a vertical wall is slipping over a horizontal surface with velocity 2m/s , when A is at a distance 3m from ground . what is the velocity of centre of mass at this moment?
January 16, 2011 by sreeram

physics
a ladder AP of length 5m inclined to a vertical wall is slipping over a horizontal surface with velocity 2m/s , when A is at a distance 3m from ground . what is the velocity of centre of mass at this moment?
January 16, 2011 by jerf

physics
If the back of the truck is 1.5 {\rm m} above the ground and the ramp is inclined at 24{\rm ^{\circ}}, how much time do the workers have to get to the piano before it reaches the bottom of the ramp?
June 23, 2011 by JT

Physics
A 500-g block is shot up a surface 25 inclined with the horizontal with an initial speed of 200cm/s. How far up the incline will it go if the coefficient of friction between it and the incline is 0.150?
November 3, 2013 by Anonymous

physics
A 1.8 kg particle-like object moves in a plane with velocity components vx = 20 m/s and vy = 50 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m. (a) What is its angular momentum relative to the origin at this moment? 1 kg m2/s (b) What is its ...
January 5, 2011 by Joey

geometry
YW bisects angle XYZ. m of angle XYW = (2x + 7)degrees and m of angle XYZ = (6x - 8)degrees. Find the value of 'x'.
November 28, 2011 by Mekolily

geometry
A triangle has an angle that is 83 degrees and another angle that is 40 degrees. Using this information, what is the degree of the third angle of the triangle?
June 2, 2012 by lupita

Physics
Two transparent media F and G are separated by a plane boundary. The speed of light in medium F is 2.0x108 m/sec and in medium G is 2.5x108 m/sec. The critical angle for which a ray of light from F to G is totally internally reflected is
October 9, 2012 by Judish

physics
A 1.90-kg object is attached to a spring and placed on frictionless, horizontal surface. A horizontal force of 14.0 N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position (the origin of the x axis). The object is now released from rest...
January 26, 2011 by Roo Kun

math: Calculus - Algebraic Vectors
A light plane is travelling at 175 km/h on a bearing of N8E in a 40 km/h wind from N80E. Determine the plane's ground velocity using algebraic vectors. The answer for this question is: 167 km/h , N5W ---------------- My Work: (a , b) = ( | r | * cosθ , | r | * sinθ...
February 18, 2008 by Anonymous

Calculous
Evaluate sin(theta) and cosine (theta) for the angle theta The graph gives you a point of (0.6,-0.8) on the x y coordinate plane with a radius of what appears to be 1 ( unit circle ) sin (theta) = cos (theta) =
October 31, 2014 by Larry

word problem
An airplane is flying with a heading of 60 degrees east of north at 450 mph. A wind is blowing at 37 mph from the north. Find the plane's ground speed to the nearest mph and direction to the nearest degree. Thanks.
March 28, 2008 by jen

Calculus/Vectors
An airplane heads due south with an air speed of 480km/h. Measurements made from the ground indicate that the plane's ground speed is 528km/h at 15 degrees east of south. Calculate the wind speed.
May 2, 2011 by Anonymous

Physics
Two objects collide and bounce off one another. After the collision, object m1 = 1.67 kg moves off at 14.5 m/s at a heading of 327 degrees. Object m2 = 1.66 kg moves off at 8.9 m/s at a heading of 211 degrees. Initially, m2 was traveling at 11.8 m/s at a heading of 318 degrees...
January 16, 2011 by Joan

math
in a triangle the sum of the angle is 180degrees. if angle A is three times angle B and Angle C is 10 degrees more than twice Angle A. Find the measures of the three anges to the newarest degree
October 15, 2014 by felesia

p6
A 5.40 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing up. During the course of 0.130 s, the field is changed to one of 0.300 T pointing down. What is the average induced emf in the coil? are the angles the...
October 9, 2010 by dude

spanish
can anyone please check my grammar for these sentences, thank you? 1. Before the plane started to move, I took a deep breath. Antes de el avione empez moverse, yo tom respire hondo. 2. I felt a little bit nervous because it was my first time to fly by myself. Me sent un ...
April 11, 2009 by no name

Geometry
MNPQ is a rhombus. The measure of angle MRQ is (13t-1) degrees, and the measure of angle PQR is (7t+4) degrees. what is the measure of angle PQM?
November 4, 2010 by alex

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