Friday

January 20, 2017
Number of results: 79,164

**Calculus and Vectors**

A plane is flying south east at a constant speed of 900km/h. The wind is blowing towards the north at 100km/h. Determine the resultant velocity of the plane relative to the ground.

*April 29, 2015 by John*

**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*

**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 Steven*

**Physics**

A 325 kg boat is sailing 15.0 degrees north of east at a speed of 2.00 m/s. Thirty seconds later, it is sailing 35.0 degrees north of east at a speed of 4.00 m/s. During this time three forces act on the boat: a 31.0 N force directed 15.0 degrees north of east (due to an ...

*October 14, 2010 by Melanie*

**Precalculus**

Please check. I did these problems by drawing a graph ... So it would be great if you do it that way too if you need to correct me. I know this is overwhelming but please take your time... It is easier for me to post all of these at once,since I can find it easier rather than ...

*December 14, 2013 by Anonymous*

**Physics-Gauss' Law**

1. If a surface is a 10 meter by 10 meter plane lying in the y-z plane, what is the vector representing the area of the plane? 2. If a sphere of radius 2 meters is placed in a uniform electric field of 3 N/C, what is the net flux through the sphere? 3. Show how Gauss's Law can...

*March 23, 2008 by Bobby*

**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*

**physics**

a man pulls an 80 kg sled up an incline that is at an angle of 25 degrees with the horizontal using a rope attached to the sled at an angle of 35 degrees. If the coefficient of friction between the sled and the incline is 0.70, what force must the man exert on the rope to keep...

*December 21, 2013 by Paul*

**physics**

Note: The direction of the acceleration ~a of the system is given in the figure. Three masses (17 kg, 21 kg and 67 kg) are connected by strings. The 67 kg mass slides on a horizontal surface of a table top and the 17 kg and 21 kg masses hang over the edge of the surface. The ...

*November 24, 2015 by I dont like physics*

**PHYSICS HELP**

A 320-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

*November 3, 2010 by A*

**Physic**

A 290-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

*November 10, 2011 by Nikki*

**st.xavier**

Determine the horizontal force P required to start the movement of the 200 lb blockup the 300inclined surface. The static coefficient of friction between the inclined surface and the block is ms = 0.25.

*September 16, 2013 by pankaj*

**Physics**

4. 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? Thank youuuu!

*November 3, 2013 by Anonymous*

**Physics**

The pilot of an aircraft wishes to ﬂy due west in a 52.6 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 154 km/h. A.) How many degrees from west should the aircraft head? Let clockwise be positive. Answer in units of ◦ (...

*November 8, 2012 by Sam*

**Physics**

Two objects are moving in the xy-plane. Object A has a mass of 3.2 kg and has a velocity of Va= (2.3 m/s)i + (4.2m/s)j and object B has a mass of 2.9 kg and has a velocity of Vb= (-1.8m/s)i + (2.7m/s)j. What is the total momentum of the system? (should I use dot product here?)

*November 9, 2014 by Carl*

**two dimensional kinematics**

A jetliner with an airspeed of 1000 kmlhr sets out on a 1500 km flight due south. To maintain a southward direction, however, the plane must be pointed fifteen degrees west of south. Ifthe flight takes 1 00 min, what is the wind velocity?

*October 8, 2012 by ringo*

**physics**

a ball is projected horizontally from the edge of a table that is 0.433m high, and it strikes the floor at a point 1.84m from the base of the table. the acceleration of gravity is 9.8m/s^2.what is the initial speed of the ball? how high is the ball above the floor when its ...

*May 20, 2011 by rista*

**physics**

Two forces 7N each are inclined at an angle of 120 degree to each other. Find the single force that will replace the given force system

*August 26, 2015 by sheryl*

**Trig**

a road is inclined at an angle of 45degrees. After driving 300 feet along this road, find the driver's increase in altitude.

*February 19, 2016 by Scott*

**physics**

A rock is projected from the edge of the top of a building with an initial velocity of 19.6 m/s at an angle of 31 degrees above the horizontal. The rock strikes the ground a horizontal distance of 77 m from the base of the building. The acceleration of gravity is 9.8 m/s^2.(...

*November 1, 2011 by Julia*

**physics**

A long jumper leaves the ground at an angle of 20.8 ◦ to the horizontal and at a speed of 10.3 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m and What maximum height does he reach? Answer in units of

*October 23, 2011 by norma*

**Math**

1. A rangers tower is located 44m from a tall tree. From the top of the tower, the angle of elevation to the top of the tree is 28 degrees and the angle of depression to the base is 36 degrees. How tall is the tree? 2. An engineer determines that the angle of elevation from ...

*February 6, 2014 by Tsunayoshi*

**physics**

In a phsics experiment, a 1.3 kg dynamics cart is placed on a ramp inclined at 25 degrees to the horizontal. the cart is initially at rest but is then pulled up the ramp with a force sensor. the force sensor exerts a force on the cart parallel to the ramp. negligible friction ...

*October 18, 2015 by tim*

**Physics**

Forces of 11.3N north, 19.1N east, and 14.5N south are simultaneously applied to a 4.12kg mass as it rests on an air table. What is the magnitude of its acceleration? What is the direction of the acceleration in degrees? (Take east to be 0 degrees and counterclockwise to be ...

*January 26, 2013 by Dan*

**physics- pls help me**

1. The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration -5.20 m/s2 for 4.45 s, making straight skid marks 62.5 m long ending at the tree. With what speed does the car then strike the tree? 2. A jet plane lands...

*October 7, 2009 by Dora*

**physics!**

An Alaskan recue plane drops a package of emergency rations to a stranded party of explorers, as illustrated. The plane is traveling horizontally at 100.0m/s at a height of 50.0 m above ground. What horizontal distance does the package tral before striking the ground? I got ...

*December 9, 2008 by emily*

**science**

An object is thrown up with a velocity 30m/s. If the acceleration due to gravity is 10m/s2. Cal. I) its velocity after 2s. II) the maximum height reaches. III) the time taken for the take object to come to rest.

*June 3, 2014 by George*

**Intro to Physics**

A uniform hoop and a disk, having the same mass and the same radius, are released simultaneously from rest at the top of a ramp. Which object reaches the bottom of the ramp first? The ramp is 1.0meter high. The incline of the plane is 30 degrees. Assume no friction. Show ...

*October 30, 2012 by Anonymous*

**Dynamics**

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

*July 31, 2012 by vikrant*

**Phyisics**

If a toy plane was going 28 feet in five seconds. How fast was the plane going. If you could show me how you got the answer

*August 19, 2011 by Steve Allen*

**Calculus**

Please verify the answers~ Thank you! 1. Which of the following is the x-intercept of the plane 2x-4z+1=0? a) P(2,0,-4) b) P(0,0,0) c) P(-1/2,0,0) d) P(0,0,1/4) Answer is C. 2. Which of the following is not a direction vector for the plane 3x-2y-z+4=0? a) v(3,-2,-1) b) v(0,-2,...

*April 10, 2012 by Antia*

**Calculus 3**

Find the equation of the plane that passes through (1,0,0) and is perpendicular to the line r=<1,0,2>+t<1,0,1>. The vector equation of a plane is n*(r-rsub0)=0. Thank you so much for your help!

*January 24, 2013 by Heather*

**Geometry/Trig**

A plane is flying and show an air speed of 130 mi/h. However, there is a 20 mi/hr crosswind. What is the resulting speed of the plane.

*March 3, 2014 by Anna*

**physics**

an object is projected at an angle of 60 degrees to the horizontal with an initial kinetic energy of 2000J.the object reaches the highest point.determine i)kinetic energy ii)potential energy at the highest point

*August 7, 2013 by linges*

**physics**

A lighthouse standing on the top of a cliff is observed from two open boats (boats are not decked over) A and B in a vertical plane through the light house. The angle of elevation of the top of the lighthouse viewed from B is 16 degrees and the angles of elevation of the top ...

*July 20, 2013 by Romar*

**physics**

A missile is released from a fighter plane traveling horizontally at an altitude of 10000 ft. if the target was hit at 2.09 miles, in mi/h, was the plane traveling?

*April 22, 2014 by nano*

**physics**

One student is pushing on a chair with a force of 260.6 N directed at an angle of 30 degrees above horizontal while a second student pushes on the same side of the chair with a force of 21.0 N at an angle of 15 degrees below horizontal. What is the magnitude, in N, of the sum ...

*October 1, 2009 by tracy*

**physics**

a plane on a runway accelerates from rest for 6.8 seconds. If the runway is 450 meters long, what was the plane's acceleration?

*October 19, 2011 by jeneva*

**Geometry**

How many points in a plane are in the locus of all points equidistant from two parallel lines in the plane? a.0 b.1 c.2 d.infinitely many D?

*January 6, 2012 by Lily*

**Math**

A plane flew an estimated distance of 800 kilometers. The greatest distance the plane could have flown is

*September 3, 2013 by Berry*

**physics**

How do i find the length of a projection of a vecor A=3x+y+2z on the xy plane? and how do i find the unit vecotr in the xy plane that is perpendiculer to vector A?

*October 28, 2014 by larry*

**physics**

How do i find the length of a projection of a vecor A=3x+y+2z on the xy plane? and how do i find the unit vecotr in the xy plane that is perpendiculer to vector A?

*October 30, 2014 by larry*

**physics**

Block 1, of mass1 = 0.550kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass2 , as shown. For an angle of = 30.0 and a coefficient of kinetic friction between block 2 and the plane of = 0.300mu(kinetic friction), an acceleration of magnitude...

*October 23, 2012 by Samantha*

**Physics**

A motorist is trying to loosen a stubborn lugnut by standing on the end of a wrench. The wrench is inclined 33.8 degrees above the horizontal and the distance from the center of the nut to the end of the wrench is 0.60 m. Assuming the motorist does not bounce up and down on ...

*March 29, 2015 by Michelle*

**Physics**

Block 1, of mass m1 = 0.650kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2, as shown. For an angle of θ = 30.0∘ and a coefficient of kinetic friction between block 2 and the plane of μ = 0.400, an acceleration of ...

*October 3, 2013 by Joe*

**Algebra: 8th Grade; Equation Check**

1) A private airplane leaves an airport and flies due south at 192 km/h. Two hours later a jet leaves at the same airport and flies due south at 960 km/h. When will the jet overtake the plane? t = time Equation: 192(t+3) = 960 2)An airplane flew for 4 hours with a 20-km/h tail...

*March 7, 2009 by Meaghan*

**College Physics**

What would be the direction of an angle at 50 degrees, 150 degrees and 295 degrees on the scale around the INSIDE of a force table?

*February 28, 2010 by Anonymous*

**Physics**

the displacement of an object of 1 kg mass as a function of time t in x-y plane is given by x = 20t + 30t^2 and y = 25 - 40t in the units of meters -the units of x and y are in meters and t is in seconds -the force acting on the object is -and then there's 5 answers

*April 10, 2010 by Allomabian*

**Physics**

the displacement of an object of 1 kg mass as a function of time t in x-y plane is given by x = 20t + 30t^2 and y = 25 - 40t in the units of meters -the units of x and y are in meters and t is in seconds -the force acting on the object is -and then there's 5 answers

*April 10, 2010 by Allomabian*

**physics**

A 0.700 kg object is swung in a circular path and in a vertical plane on a 0.550 m length string. If the angular velocity at the bottom is 12.00 rad/s, what is the tension in the string when the object is at the bottom of the circle?

*July 7, 2015 by jessica*

**Physics**

A flight controller determines that an airplane is 34.0mi south of him. Half an hour later, the same plane is 42.0mi northwest of him. The general direction of the airplane’s velocity is? If the plane is flying with constant velocity, what is the direction of its velocity ...

*February 24, 2015 by Michael*

**Physics**

Using a ramp of length 2m, you apply a 150N force to move a 20kg object a vertical distance of 1m. How much work does gravity do on the object?

*November 28, 2015 by Faith*

**PHYSICS**

A wet bar of soap slides freely down a ramp 12.0 m long, inclined at 74.0 degrees. How long (in seconds) does it take to reach the bottom? (Neglect friction.)

*March 7, 2012 by jess*

**physics**

A projectile is lanched om horizontal plane. Variation of slop of trajectory of projectile with time. Where m=0 to1 and t=0 to 10. What will be the horizontal range?

*July 24, 2011 by Shivam*

**Physics**

Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Object A has a mass of mA = 17.9 kg and an initial velocity of = 8.82 m/s, due east. Object B, however, has a mass of mB...

*November 4, 2012 by Tim*

**physics**

Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Object A has a mass of mA = 17.5 kg and an initial velocity of = 8.50 m/s, due east. Object B, however, has a mass of mB...

*October 10, 2013 by Ray*

**Math**

A small plane flying into the wind takes 3h 20 min to complete a flight of 960 km.Flying with the wind, the same plane takes 2h 30 min to make the trip. What is the speed of the plane? What is the speed of the wind? can you plz help thx I really am thankful to have found a ...

*January 22, 2009 by gagan*

**Geometry**

Angle A and Angle B are complementary andgles and the m Angle A = 58 degrees, what is he measure of the supplement of Angle B. This is what I did Angle A and Angle B = 90 degrees, mAngle A = 58 degrees 90 - 58 = 32 degrees 180 - 32 = 148 M angle B supplement = 148 degrees Am I...

*February 6, 2012 by Monique*

**Physics**

A hill is 290 m long and makes an angle of 10 degrees with the horizontal. As a 68 kg jogger runs up the hill, how much work does gravity do on the jogger?

*December 16, 2010 by Casey*

**Calculus**

An airplane is heading at a bearing of N23°E at a speed of 700 km/hr, but there is a wind blowing from the west at 60 km/hr. If the plane does not make any correction, what will be the bearing of the plane? What is its speed relative to the ground (ground speed = airspeed + ...

*July 29, 2015 by Alexa*

**Geometry**

I am doing 7th grade algebra, and my homework is due by 9:00 and I don't know how to solve this question: Find the measures of supplementary angles 1 and 2 if, A) m angle 1 is less than m angle 2 by 40 degrees B) m angle 1:m angle 2=5:4 Please help soon my class starts at 9:00

*September 24, 2016 by Ava*

**Math please help?!?!**

Point A lies in plane B. How many lines can be drawn perpendicular to plane B through point A? 1) one 2) two 3) zero 4) infinite

*October 16, 2013 by Christa*

**Math**

A model plane flies 18ft per 2 seconds. What is the plane's speed in miles per hour? Round to the nearest tenths.

*April 27, 2014 by Bill*

**math**

Brandon is making a model plane at a 1:36 scale. If the length of the actual plane is 60 feet, how many inches long should he make his model?

*May 3, 2016 by lid*

**Math**

Math question: My plane arrived in Chicago 45 minutes later from Detroit. How fast was my plane which traveled at about 20000 altitude?

*September 23, 2016 by Lisa*

**math ( plane)**

find the equation of the plane passes through the middle point of the join of the points (2,-3,1) and (4,5,-3) and is perpendicular to the line joning the points?

*November 30, 2016 by help*

**Physics**

An airplane with a speed of 76.8 m/s is climbing upward at an angle of 48° with respect to the horizontal. When the plane's altitude is 560 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly beneath the point of ...

*February 8, 2012 by Natasha*

**Physics**

A student ties a 600.0 g rock to a 1.50 m-long string and swings it around her head in a horizontal circle. At what angular speed (in rev/min) does the string tilt down at a 13.1° angle, assuming that the local acceleration due to gravity is -9.80 m/s2?

*October 17, 2011 by Helpp*

**Physics**

A 69kg skateboarder, at rest on a frictionless surface, throws a 4.0kg rock with the velocity given by v=3(i hat)+4(jhat), where the x and y axes are both in the horizontal plane. What is the x component of the subsequent velocity of the skateboarder? WHat is the y component ...

*April 2, 2009 by Malcom*

**Physics**

A 69kg skateboarder, at rest on a frictionless surface, throws a 4.0kg rock with the velocity given by v=3(i hat)+4(jhat), where the x and y axes are both in the horizontal plane. What is the x component of the subsequent velocity of the skateboarder? WHat is the y component ...

*April 2, 2009 by James*

**Physics**

A crate is given an initial speed of 3.1 m/s up the 29 degree plane shown in the figure . Assume coefficient of friction = 0.17. How far up the plane will it go? How much time elapses before it returns to its starting point?

*June 18, 2012 by Anonymous*

**Physics**

A plane designed for vertical takeoff has a mass of 6.4 ✕ 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 8.4 m/s2 through a distance of 30.0 m after starting from rest.

*November 20, 2014 by Ben*

**physics**

A plane designed for vertical takeoff has a mass of 8.2 ✕ 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 10.5 m/s2 through a distance of 25.4 m after starting from rest. J

*December 11, 2014 by Anonymous*

**geometry**

anthony is building a picnic table for his patio. he cut one of the legs at an angle of 40 degrees. at what angle should he cut the other end to ensure that the top of the table is parallel to the ground?

*November 1, 2011 by sam*

**Materials Science**

In this problem, you will construct the 2D Mohr's circle for two plane stress states defined in terms of the Cartesian components of the stress tensor in the x,y reference frame: [ σx,σy,τxy]. For each of these stress states, you must construct and use the Mohr'...

*October 10, 2014 by qwerty*

**Physics**

Tarzan swings on a 27.0 m long vine initially inclined at an angle of 33.0° with the vertical. (a) What is his speed at the bottom of the swing if he starts from rest? (b) What is his speed at the bottom of the swing if he pushes off with a speed of 3.00 m/s? I tried to use ...

*March 10, 2010 by Kelsey*

**Calculus**

Find an equation of the plane. The plane that passes through (8, 0, −2)and contains the line x = 6 − 2t, y = 3 + 5t, z = 3 + 2t

*January 31, 2014 by Jessica*

**Physics**

A 1600-kg car experiences a combined force of air resistance and friction that has the same magnitude whether the car goes up or down a hill at 32 m/s. Going up a hill, the car's engine produces 54 hp more power to sustain the constant velocity than it does going down the same...

*October 15, 2012 by Sam*

**Physics**

A 1800-kg car experiences a combined force of air resistance and friction that has the same magnitude whether the car goes up or down a hill at 28 m/s. Going up a hill, the car's engine produces 52 hp more power to sustain the constant velocity than it does going down the same...

*October 15, 2012 by Darren*

**Math**

A resultant vector has a magnitude of 25m?s with an angle of 20 degrees counterclockwise of east. draw the resultant on a coordinate plane, Find the x-component. Find the y-component

*September 30, 2014 by Gene*

**physics**

After placing a 0.500 m dent in the landlords van, the two management students are told they and their 200 daN beer freezer have to go. The new ramp is inclined at an angle of 32.1 o relative to the horizontal. The coefficient of static friction between the freezer and the ...

*March 13, 2016 by tom*

**physics**

After placing a 0.500 m dent in the landlords van, the two management students are told they and their 200 daN beer freezer have to go. The new ramp is inclined at an angle of 32.1 o relative to the horizontal. The coefficient of static friction between the freezer and the ...

*March 14, 2016 by tom*

**physics**

A small 5.00 kg brick is released from rest 3.00 m above a horizontal seesaw on a fulcrum at its center, with a radius of 1.60 m. Find the angular momentum of this brick about a horizontal axis through the fulcrum and perpendicular to the plane of the figure the instant the ...

*November 2, 2009 by AE*

**physics**

A 280-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest? rad/s

*November 30, 2012 by monic*

**physics**

A 310-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest? rad/s

*March 8, 2015 by alba*

**physics**

an object of mass m is suspended by a string of length 2m .the object is rotated in a horizontal circle show the relationship between the tension and mass and linear velocity of the body when the string make an angle to the horizontal

*October 30, 2014 by boni*

**Math (URGENT)**

A word problem. David flew 300km on a commuter plane, then 2000km on a passenger jet. The passenger jet flew twice as fast as the commuter plane. The total flying time for the journey was 3.25 hours. What was the speed of each plane, in kilometers per hour? Please help. I've ...

*May 24, 2010 by John*

**physic**

A 660 N cat burglar is supported by cables in the figure below. Assume the angle è of the inclined cable is 36.0°. Find vertical cable? Thank you so much for your help.

*October 12, 2009 by Chan*

**Physics**

A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic force on the wire is true. a) The wire will be ...

*November 14, 2010 by Katie*

**physics**

A pilot wants to fly west (ie., the resultant is west). If the plane has an airspeed of 9.5 m/s, and there is a 25m/s wind blowing north, in what direction must she head the plane?

*December 3, 2010 by jane*

**math**

a plane flies northwards for 430km.if the plane flies eastward for 380km.how far is it from its starting point(ignore its height above the ground)

*June 4, 2016 by adebisi adewumi j*

**Trigonometry**

11. If a navigation error puts a plane 2.5° off course, how far off course is the plane after flying for 2 hours at 152 miles per hour?

*June 8, 2016 by Mark*

**calculus 2**

An object thrown in the air on a planet in a distant galaxy is at height s(t) = -20t^2 +67t +42 feet at time t seconds after it is thrown. a) From what height was the object thrown? b) With what velocity was the object thrown? c) What is the acceleration due to gravity on this...

*January 31, 2013 by Rachel*

**PHYSICS**

A basket is being dragged across a horizontal floor by two horizontal rope A and B which are inclined at 36 degree and 27 degree respectively with the direction in which the basket is moving.Rope A has a tension of 20Newton.Find the tension in rope B and the resultant force on...

*September 4, 2015 by TOSIN*

**physics**

A 2.0kg box rests on a plank that is inclined at an angle of 65° above the horizontal. The upper end of the box is attached to a spring with a force constant of 25 N/m. If the coefficient of static friction between the box and the plank is 0.17, what is the maximum amount the...

*May 21, 2007 by micole*

**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*

**physics**

A block of mass 3.90 kg is pushed 3.80 m along a frictionless horizontal table by a constant 16.0 N force directed 24.0° below the horizontal. What is th total work done on the block?

*October 25, 2010 by gabe*

**physics**

a heavy object is dropped from the top of a 25 m tall building and it reaches the ground in 2.26 seconds determine the acceleration due to gravity how far did the object fall during the first second how far did the object fall during the 2nd second

*July 14, 2016 by glenn*