Wednesday

July 23, 2014

July 23, 2014

Number of results: 13,926

**calculus**

A plane is flying west at 500 ft/sec at an altitude of 4000 ft. The plane is tracked by a searchlight on the ground. If the light is to be trained on the plane, find the change in the angle of elevation of the searchlight at horizontal distance of 2000 ft.
*November 12, 2008 by bill*

**Math (Ms. Sue Please help!)**

A plane on a search mission flew east from an airport, turned, and flew west back to the airport. The plane cruised at 300km/h when flying east, and 400km/h when flying west. The plane was in the air for 7 hours. How far from the airport did the plane travel?
*January 2, 2013 by Kate*

**Geometry**

A plane flying 16 degrees west of north at 289mph is flying in air which is moving 32mph at due west. Find the resulting speed and direction of the plane. (Step by step please!)
*September 24, 2013 by George*

**Math**

A plane on a search mission flew east from an airport, turned, and flew west back to the airport. The plane crised at 300km/h when flying east, and 400km/h when flying west. The plane was in the air for 7 hours. How far from the airport did the plane travel?
*January 2, 2013 by Kate*

**Anyone Please Help! **

A plane on a search mission flew east from an airport, turned, and flew west back to the airport. The plane cruised at 300km/h when flying east, and 400km/h when flying west. The plane was in the air for 7 hours. How far from the airport did the plane travel?
*January 2, 2013 by Kate*

**Algebra 2**

1. Plane A is 40 mi south and 100 mi east of Plane B. Plane A is flying 2 miles west for every mile it flies north, while Plane B is flying 3 mi east for every mile it flies south. a. Where do their paths cross? b. Which plane must fly farther? c. What ratio of the speed of ...
*September 28, 2009 by newt*

**Math**

Plane A is 40 mi south and 100 mi east of Plane B. Plane A is flying 2 miles west for every mile it flies north, while Plane B is flying 3 mi east for every mile it flies south. a. Where do their paths cross? b. Which plane must fly farther? c. What ratio of the speed of Plane...
*September 28, 2009 by newt*

**Please Anyone!!!**

Plane A is 40 mi south and 100 mi east of Plane B. Plane A is flying 2 miles west for every mile it flies north, while Plane B is flying 3 mi east for every mile it flies south. a. Where do their paths cross? b. Which plane must fly farther? c. What ratio of the speed of Plane...
*September 28, 2009 by newt*

**Math**

a plane flies due north at 300 mi/h for 3 h then due west at 250 mi/h. If x represents the number of hours the plane is flying due west, determine for what values of x the plane will be more than 3700 mi from it's original point.
*March 8, 2011 by Rob*

** Calculusss ( pleassee someboddy heelp )**

an airplane flying due east at 400 km/h pasess over an airport 12 minutes before a second plane flying south 30 degrees west at 500 km/h.if the airplanes are at the same altitude how fast will they by seprating when the seccong plane is over the airport.?When will they be the...
*March 18, 2011 by Alisha*

**MATH**

Two planes leave an airport at the same time, one flying east, the other flying west.The eastbound plane travels 100 mph slower. They are 3040mi apart after 4hrs. find the speed of each plane
*January 26, 2011 by PLEASE HELP!!!*

**algebra 2**

plane a is 40 mi south and 100 mi east of plane b. plane a is flying 2mi west for every mile it flies north, while plane b is flying 3 mi east for every mile it flies south. which plane must fly farther
*November 11, 2013 by Anonymous*

**Physics **

A plane is flying west at 214 km/h. The wind is blowing south at 108km/h. a what is the ground speed of the plane b In what direction does the plane travel
*January 31, 2012 by Shekinah*

**Honors Trig.**

A plane is flying at a speed and direction of 550 mph, 25 degrees north of west. There is a wind of 28 mph, at an angle of 19 degrees south of the east direction. How fast is the plane actually flying? What direction is the plane traveling?
*April 29, 2012 by Ashley*

**sience**

a plane is flying due east in still air at 395km/h suddenly the plane is hit by wind blowing at 55km/h toward the west. what is the resultant of the plane?
*June 2, 2014 by anissa*

**physics**

A bomb is dropped from a plane flying at constant horizontal velocity at an altitude of 600m. Where is the bomb after 2 sec? 5 sec? 10 sec? what are the velocities said period?
*January 8, 2014 by Anonymous*

**physics**

A bomb is dropped from a plane flying at constant horizontal velocity at an altitude of 600m. Where is the bomb after 2 sec? 5 sec? 10 sec? what are the velocities said period?
*January 8, 2014 by Anonymous*

**calculus**

an airplane flying due east at 400 km/h pasess over an airport 12 minutes before a second plane flying south 30 degrees west at 500 km/h.if the airplanes are at the same altitude how fast will they by seprating when the seccong pane is over the airport.?When will they be the ...
*March 17, 2011 by tara*

**Calculus**

(Another related rate question) A plane (alt. 4000ft) is flying west at 700ft/sec. A searchlight under its path, tracks it. How fast if the light pivoting when the plane is 1000ft east? --- Kind of similar to the lamp post question I posted earlier. I know dp/dt, 700ft/sec. We...
*September 12, 2010 by Nikki*

**Physics**

A small plane is 150km south of the equator. The plane is flying at 220km/h at a heading of 30 degrees to the west of north. In how many minutes will the plane cross the equator?
*October 14, 2012 by Cassie*

**physics**

A plane is traveling at 300 m/s drops a bomb which hits it target 10 sec later. How high was the plane flying?
*September 21, 2011 by Brooke*

**calculus**

26. A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5 miles and is going ...
*March 16, 2009 by jason*

**college**

A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5 miles and is going 500 ...
*December 6, 2010 by Joshua*

**physics**

a plane is flying southwest at 155 mi/h and encounters a wind from the west at 45.0 mi/h. what is the plane velocity in respect to the ground in standard position?
*September 17, 2010 by tatychass*

**Calculus**

A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5 miles and is going 500 ...
*November 12, 2008 by George*

**Calculus**

A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another 5 miles and is going 500 mph. At that moment, how fast is the distance between the ...
*November 11, 2008 by George*

**physics**

A plane is found by radar to be flying 5.9 km above the ground. The angle of elevation from the radar to the plane is 78.6°. Ten seconds later, the plane is directly over the station. Find the speed of the plane, assuming that it is flying level.
*March 13, 2014 by eric*

**Geometry/trig**

A plane is flying due south at a speed of 300 mph. The wind is blowing from the west at a speed of 40 mph. Find the resultant speed of the plane and the direction of the plane
*February 6, 2012 by Lezah*

**8th grade**

A JetBlue flight from Jacksonville, FL to San Diego is flying at 500 km per hour west. It encounters a head wind that is moving at 300 km per hour in an easterly direction towards the east. What is the net velocity of the plane, include directions?
*September 23, 2009 by enrique*

**Physics**

A plane is flying southwest at 155 mi/h and encounters a wind from the west at 45.0 mi/h. What is the plane's velocity in respect to the ground in standard position? I know the answer, but can't figure out how to get the answer. Any help would be appreciated!
*January 24, 2013 by A*

**Geometry- trig ratio**

An observer (o) spots a plane flying at a 55 degrees angle to his horizontal line of sight. if the plane is flying at an altitude of 21,000 ft, what is the distance (x) from the plane (p) to the observer (o)?
*April 15, 2014 by Anonymous *

**Physics**

a plane is flying due north at 155 mi/h and encounters a wind from the west at 45m/h. what is the plane's new velocity with respect to the ground in standard position. answer is 128 mi/h at 239.4. how do i get to this answer.
*January 26, 2010 by Lisa*

**Math**

An airplane flies 500 mi/h in still air. Flying with the jet stream, the plane travels 1200 mi from City A to City B. The plane then returns to City A, flying against the jet stream. The round-trip flight time is 5 h. What is the speed of the jet stream in miles per hour? A: ...
*May 24, 2011 by Rebecca*

**Trigonometry**

An observer (0) spots a plane flying at a 55 degree angle to his horizontal line of sight.If the plane is flying at an altitude of 21,000 ft., what is the distance (x) from the plane (P) to the observer (0)
*April 29, 2014 by Angelica*

**physics**

if a plane is flying 235 km/h and encounters west wind at 80 km/hr. What's its new velocity?
*September 1, 2010 by tatychass*

**Math**

Me, again... Please help me. Thank you. Assume a plane is flying directly north at 200 mph, but there is a wind blowing west at 23 mph. Part I: Express both the velocity of the plane and the velocity of the wind as vectors, using proper notation to represent each direction of ...
*January 8, 2014 by Lizzie098*

**physics**

a jet plane flying at 550 m/s makes a curve. The radius of the circle in which the plane is flying is 9.0 X 10^3 m. What centripetal acceleration does the plane experience? Express this acceleration relative to g, the acceleration due to gravity.
*November 1, 2011 by Dee*

**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*

**Physics**

Plane flying southwest at 155mi/hr. their is a wind from the west at 45.0mi/hr. what's the planes new velocity
*February 21, 2013 by Dan*

**Pre cal**

1. An airplane flies 200 km on course 110 degrees from point A to point B. At point B the pilot changes course to 37 degrees. The plane then flies 100 km to point C. Find the magnitude of the net displacement from A to C. 2. A plane is flying on a bearing of 25 degrees west of...
*May 15, 2014 by Henry*

**Math Ms. Sue please help**

Flying to Kampala with a tailwind a plane average 158km/h. On the return trip the plane only averaged 112km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane in still air.
*February 28, 2013 by Anonymous*

**calculus**

A plane flying horizontally at an altitude of 1 mi and a speed of 500 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station. I drew a diagram and figured out I need to ...
*March 4, 2012 by Daniel*

**trig**

A plane is flying 225 mph heading South 25°West. The wind is blowing South 80°East at 60 mph. What is the bearing of the plane? What is the smallest angle of the triangle? What is the largest angle of the triangle? What is the remaining angle of the triangle? What is the ...
*May 26, 2011 by Anonymous*

**Geography**

I was wondering if a plane flew west and kept flying, would it be possible for it to never fly into night if it didn't stop?
*April 19, 2010 by Andrew*

**Physics**

A bomb is dropped from a plane flying at 4000 meters. The plane is flying at 80 m/s. How far, in a horizontal direction, did the bomb hit the ground?
*June 22, 2012 by Sarah*

**algebra-word problem**

Flying to Kampala with a tailwind a plane averaged 158 km/h. On the return trip the plane only averaged 112 km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane in still air. TIA
*March 23, 2008 by jen*

**Trigonometry**

2 questions: An airplane takes off from the ground and reaches a height of 500 feet after flying 2 miles. Given the formula H=dtan times theta, where H is the height of the plane and d is the distance (along the ground) the plane has flown, find the angle of ascent theta at ...
*February 21, 2008 by Anonymous*

**physics**

An airplane is flying with a speed of 240 km/hr at an angle of 27 degrees north of east. a) How fast is the plane flying north? b) How fast is the plane flying east?
*September 30, 2010 by jacob*

**Algebra 2**

A commercial freight carrier is flying at a constant speed of 400 mi/h and is traveling 4 miles east for every 3 miles north. A private plane is observed to be 210 miles east of the commercial carrier, traveling 12 miles north for every 5 miles west. a. If it is known that the...
*September 28, 2009 by newt*

**Physics**

An airplane flying at 82km/hr at 30 degrees east of north encounters a 40km/hr wind due west. What is the speed of the plane relative to the ground?
*June 12, 2012 by M*

**Science**

A plane is flying 500mph east.The wind is blowing 50mph west.What is the netforce.Please help i need this question awensered by March 2013,31.
*March 27, 2013 by Cassidy*

**physics**

You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, which acts perpendicular to the wings. When the plane is flying level, the upward lift force exactly balances...
*March 19, 2011 by please help!!!!*

**physics**

You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, which acts perpendicular to the wings. When the plane is flying level, the upward lift force exactly balances...
*March 20, 2011 by HELP!*

**Physics**

This is my homework problem: "The pilot of a plane is flying at 450 mi/hr W 20.0 degrees S relative to the earth. She sees another plane flying at 350 mi/hr N 40.0 degrees W relative to her plane. What was the magnitude and direction of the plane she saw relative to the earth...
*October 7, 2010 by Tii*

**Physics**

Posted by Dan on Thursday, February 21, 2013 at 11:17pm. Plane flying southwest at 155mi/hr. their is a wind from the west at 45.0mi/hr. what's the planes new velocity
*February 22, 2013 by Rick*

**math**

Flying to Seoul with a tailwind a plane averaged 343 mph. On the return trip the plane only averaged 307 mph while flying back into the same wind. Find the speed of the plane in still air and the speed of the wind.
*April 17, 2013 by Angela*

**PHYSICS**

A plane flying horizontally at 180 m/s drops a box just as it crosses a coastline. The box lands 3 kilometers from the coast. - At what height is the plane flying? - How long it takes to the box to reach the ground ?
*March 22, 2014 by LEZA91*

**NS 2**

An object falls from a plane flying horizontally at an attitude of 40,000 ft. at 500 ml/hr. How long will take hit the ground?
*July 11, 2014 by jm*

**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*

**physics**

an object falls from a plane flying horizontally at an altitude of 40,000 ft at 500 mi/h. How long will it take to hit the ground?
*June 28, 2012 by wen*

**Physcis**

An airplane flying at 120km/h due west moves into a region where the wind is blowing at 40km/h due east. If the plane's original vecotr velocity is Vplane, what is the expression for the plane's resulting velocity in terms of Vplane. a. 1/3 >Vplane b. 2/3>Vplane c.1 ...
*September 18, 2010 by Josh*

**math**

a small plane flying into the wind takes 3 hrs 20 min to complete a flight of 960 km. Flying with the wind the same plane takes 2 h 30 min to make the trip.what is the speed of the plane? what is the speed of the wind?
*September 22, 2010 by mathhy*

**math**

a small plane flying into the wind takes 3 hrs 20 min to complete a flight of 960 km. Flying with the wind the same plane takes 2 h 30 min to make the trip.what is the speed of the plane? what is the speed of the wind? can u plz finish the whole question?? with the speed,time...
*September 23, 2010 by helpyyy*

**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?
*January 22, 2009 by gagan*

**Physics**

Two planes are about to drop an empty fuel tank. At the moment of release each plane has the same speed of 135 m/s, and each tank is at the same height of around 2.00km above the ground. Although the speeds are the same, the velocities are different at the instant of release, ...
*June 6, 2012 by Anonymous*

**math**

If you are flying to a city 800 miles away, what will be the difference in flight times between flying into a 40-mph headwind and flying with a 40-mph tailwind if the plane's maximum speed with no wind is 160 mph?
*October 31, 2012 by Christina*

**math**

If you are flying to a city 800 miles away, what will be the difference in flight times between flying into a 40-mph headwind and flying with a 40-mph tailwind if the plane's maximum speed with no wind is 160 mph?
*November 1, 2012 by Christina*

**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*

**Physics**

A plane is flying at 25 degrees north of west at 190km/ h. Suddenly there is a wind from 15degrees north of east at 45 km/ hr. what is the planes new velocity with respect to ground in standard position
*February 22, 2013 by Dan*

**Physics**

I have a question An airplane is flying at 120km/h due west moves into a region where the wind is blowing at 40km/h. If the planes original velocity is Vplane, what is the expression for the plane's resulting velocity in terms of V plane? Answers are given 1/3 greater than ...
*September 22, 2010 by Jillian*

**Physics**

I have a question An airplane is flying at 120km/h due west moves into a region where the wind is blowing at 40km/h. If the planes original velocity is Vplane, what is the expression for the plane's resulting velocity in terms of V plane? Answers are given 1/3 greater than ...
*September 22, 2010 by Jillian*

**Physics**

A 10 kg ball moving due west at 2m/sec collides with a 4kg ball that is moving due east at 3 m/sec. You determine that immediately after the collision the 10 kg ball is moving due west at 0.57 m/sec. How do I set up the equations to find the answer?
*October 26, 2010 by Christina*

**CALCULUS **

A plane, flying horizontally at an altitude of 1 km and a speed of 500 km/hr, passes directly over a radar station. find the rate in km/hr at which the distance from the plane to the station is changing when it is 2 km away from the radar station. Hint: this is not a max/min ...
*April 24, 2014 by TANYA*

**physics**

A jet plane is flying horizontally with a speed of 500 m/s over a hill that slopes upward with a 3% grade (i.e., the "rise" is 3% of the "run"). What is the component of the plane's velocity perpendicular to the ground? (Assume the +x-direction is up along the slope and the +y...
*May 24, 2014 by Soh*

**Ohysics**

An airplane flying at 120km/h due west moves into a region where the wind is blowing at 40km/h due east. If the plane's original vecotr velocity is Vplane, what is the expression for the plane's resulting velocity in terms of Vplane. a. 1/3 >Vplane b. 2/3>Vplane c.1 ...
*September 19, 2010 by Joel*

**geometry**

A plane is heading west at 200 mph. The wind is blowing S30°W at 25 mph. 1. What is the ground speed of the plane? 2. When you solve the triangle, what is the smallest angle? 3. What is the largest angle of the triangle? 4. What is the remaining angle? 5. What is the bearing ...
*December 6, 2011 by Cam*

**Trig**

A plane if flying at 200 mph with a heading of 45 degrees and encounters a wind of 100 mph from the west. What is the resulting velocity and heading?
*March 3, 2013 by Sarah*

**Algebra and Trigonometry **

A plane if flying at 200 mph with a heading of 45 degrees and encounters a wind of 100 mph from the west. What is the resulting velocity and heading?
*March 3, 2013 by Sarah*

**PHYSICS**

Two planes fly from toronto to philadelphia. Plane a flies via pittsburgh whereas passenger on plane B have a direct flight. Pittsburgh is 350km due south of Toronto and 390km due west of Philadelphia. The airspeed of both planes is 400km/h and a steady wind is blowing from ...
*February 27, 2008 by LILY*

**Physics**

An airplane is flying in a horizontal circle at a speed of 514.8 km/h. The plane is banked for this turn, its wings tilted at an angle of 41.6° from the horizontal. Assume that a lift force acting perpendicular to the wings acts on the aircraft as it moves through the air. ...
*September 26, 2012 by Tara*

**Physics**

The wind is blowing from west to east at 35 mph and an eagle in that wind in flying at 22 mph relative to the air what is the velocity of this eagle realtive to a person standing on the ground if the eagle is flying (a) from west to east relative to the air and (b) from east ...
*June 4, 2009 by Sarah*

**Acc. Algebra 2**

At 10:30 am two planes leave to Houston, one flying east 560km/h and the other flying west at 640 km/h. At what time will they both ne 2100km apart.
*September 3, 2013 by Lisa*

**math**

One plane flies straight east at an altitude of 31,000 feet. A second plane is flying west at an altitude of 13,000 feet on a course that lies directly below that of the first plane and directly above the straight road from Thomasville to Johnsburg. As the first plane passes ...
*February 5, 2013 by rachel*

**math**

One plane flies straight east at an altitude of 31,000 feet. A second plane is flying west at an altitude of 13,000 feet on a course that lies directly below that of the first plane and directly above the straight road from Thomasville to Johnsburg. As the first plane passes ...
*February 5, 2013 by rachel*

**math**

One plane flies straight east at an altitude of 31,000 feet. A second plane is flying west at an altitude of 13,000 feet on a course that lies directly below that of the first plane and directly above the straight road from Thomasville to Johnsburg. As the first plane passes ...
*February 5, 2013 by rachel*

**Physics**

An airplane is flying in a horizontal circle at a speed of 482 km⁄h. The wings of the plane are tilted at 38.2° with respect to the horizontal as shown in the figure below. Find the radius of the circle in which the plane is flying. Assume that the centripetal force is ...
*February 23, 2014 by Chrxeyshthoufov*

**Physics**

A plane is flying 25 degrees north of west at 190 km/h and encounters a wind from 15 degrees north of east at 45 km/h. What is the planes new velocity with respect to the ground in standard position?
*February 18, 2013 by Matt*

**Math**

Flying into the wind, a plane takes 8h to travel 5432 km from Paris to Montreal.The same plane flying with the wind from Montreal to Paris takes only 7 h. Find the speed of the plane and the speed of the wind.
*January 22, 2009 by gagan*

**physics**

A plane flying horizontally at a constant velocity drops a bomb on a cave from a height of 500 m. At the moment the bomb hits the ground, the plane is A.) 250 meters beyond the cave B.) Directly over the cave C.) 250 meters from the cave D.) Some other wild guess
*September 28, 2011 by Amanda*

**physics**

It says, A plane travels 400 mi/h relative to the ground. There is a 25 mi/h wind blowing from the west to the east. Find the plane's resultant velocity as it: a. travels west: b. travels east: c. travels north: d. The plane's final destination is 1250 miles north. If the ...
*November 2, 2010 by spandana siram*

**physics (speed of plane by radar)**

The radar stations A and B, separated by the distance a = 500 m, track the plane C by recording the angles α and β at 1-second intervals, If three successive readings are shown in the table,calculate the speed v of the plane and the climb angle y at t = 10 seconds as...
*November 11, 2012 by micheal*

**physics**

A jetliner can fly 5.57 hours on a full load of fuel. Without any wind it flies at a speed of 2.43 x 102 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip. During the entire flight, ...
*October 6, 2011 by randy*

**Math**

Flying into the wind, a plane takes 8 h to travel 5432 km from Paris to Montreal. The same plane flying with the wind from Montreal to Paris takes only 7 h. Find the speed of the plane and the speed of the wind. Can you plz answer this sir I really would appriciete it. Plz can...
*January 22, 2009 by gagan*

**Physics**

A 10 kg ball moving due west at 2m/sec collided with a 4kg ball that is moving due east at 3m/sec. you determine that immediately after the collision the 10 kg ball is moving due west at .57 m/sec. a) this probably is a totally elastic collision b) this definitely is NOT a ...
*November 1, 2010 by Jael*

**Physics Help PLEASE!!!**

A 10 kg ball moving due west at 2m/sec collided with a 4kg ball that is moving due east at 3m/sec. you determine that immediately after the collision the 10 kg ball is moving due west at .57 m/sec. a) this probably is a totally elastic collision b) this definitely is NOT a ...
*November 2, 2010 by Jael*

**Physics Help PLEASE!!!**

A 10 kg ball moving due west at 2m/sec collided with a 4kg ball that is moving due east at 3m/sec. you determine that immediately after the collision the 10 kg ball is moving due west at .57 m/sec. a) this probably is a totally elastic collision b) this definitely is NOT a ...
*November 2, 2010 by Jael*

**Physics**

A plane leaves Toronto and flies with an airspeed of 2.20 x 10^2 km/h always pointing due east. A wind is blowing from the north at 8.0 x 10^1 km/h. a) What is the plane's velocity relative to the ground? b) What is the plane's displacement from Toronto after flying for 2.5h?
*October 28, 2007 by Alex*

**Physics**

1. A rescue plane flying horizontally at an altitude of 500 m and velocity of 300 m\s east drops a food supply packet to plane crash survivors on the ground. The packet falls freely to the ground without a parachute. Assume that the weather is perfect. a. Calculate the time it...
*October 23, 2012 by Shannon*

**Calculus PLEASE check my work ,**

1.) which of the following represents dy/dx when y=e^-2x Sec(3x)? A.3e^-2x sec(3x) tan (3x)-2e^-2x Sec(3x)<<<< my choice B.)3e^-2x sec(3x)tan (3x)-2xe^-2x sec(3x) C.)3e^-2x sec(3x)tan (x)-2e^-2x Sec(3x) D.)3e^-2x sec(3x)tan (x)-2xe^-2x sec(3x) 2.)calculate dy/dx if...
*March 12, 2011 by anon*

**Algebra**

Flying with wind, a plane flew 800 miles in 5 hrs. Flying against the wind, the plane flew the same distance in 8 hrs. Find the still air speed and wind speed.
*November 7, 2011 by Christian*

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