Monday

August 31, 2015
Number of results: 11,072

**Physics**

a 15000 kg airplane descends a vertical distance of 10.0 km over a horizontal distance of 80.0 km. What is the airplane's loss of potential energy. (I'm confused about the height) Ep=mgh m= 15000 kg g= 9.81 m/s^2 h=??
*December 27, 2014 by Anonymous*

**Physics**

A jet airplane has an intensity of 92.4 W/ m2 when heard at a distance of 21.2 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 10700 m overhead?
*November 22, 2010 by Bella*

**Physics**

A jet airplane has an intensity of 92.4 W/ m2 when heard at a distance of 21.2 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 10700 m overhead?
*November 22, 2010 by Bella*

**physics**

An airplane with a mass of 1.2 x 10^4 kg tows a glider with a mass of .60 x 10^4 kg. If the airplane propellers provide a net forward thrust of 3.6 x10^4 N, what is the acceleration of the glider?
*May 18, 2012 by Anonymous*

**Physics**

An airplane is flying with an air velocity of 850 km/h at 34 degrees n of e. The wind is blowing at 100 km/h at 20 degrees s of e. Find the ground velocity of the airplane.
*September 26, 2012 by Taylor*

**Pre-Cal**

Two airplanes take off from an airport at the same time. One travels on a heading of 45 at 420 mph and the other on a heading of 150 at 400 mph. After two hours, how far apart are the airplanes? A.650.66 miles B.1,160 miles C.1,301 miles
*March 17, 2012 by Adrianna*

**Physics**

a ship is heading due north at 7.50 m/s relative to the water. The local current is 1.52 m/s in a direction 42 degree west of north. Find its velocity relative to earth( find both direction and magnitude of the velocity)
*December 19, 2012 by Hep*

**phys**

An airplane must reach a speed of 185 mi/h to take off. If the runway is 500 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully?
*January 30, 2011 by Lisa*

**Trig**

You and a friend are rowing a boat 8.5 KPH heading north. A cross current is moving 3.2 KPH at an angle of 38 degrees north of the west direction. How fast are you actually moving and what direction are you actually heading?
*May 27, 2014 by Kim*

**MAth Igcse**

The angle of elevation of the top of a tower is 27 degrees from point A due east of it. The angle of elevation of the top of the tower is 11 degrees from another point B due south of the tower. Find the height of the tower if the distance AB is 40m.
*January 15, 2015 by Choi*

**MAth Igcse**

The angle of elevation of the top of a tower is 27 degrees from point A due east of it. The angle of elevation of the top of the tower is 11 degrees from another point B due south of the tower. Find the height of the tower if the distance AB is 40m.
*January 15, 2015 by Choi*

**english**

4. Which of the following sentences contains “passive voice?” (Points : 1) The airplane was wrecked by the wind. The wind wrecked the airplane. The cat chased the mouse. The bird flew after the balloon. a, b, c
*October 24, 2010 by cc*

**Physics**

An airplane must reach a speed of 240.5 mi/h in order to take off. If the runway is 571.5 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully?
*September 10, 2011 by Anon14*

**Physics**

An airplane flies clockwise around an airport control tower at a speed of 190 m/s. If that control tower is 8 km from the airplane at all times, what is the plane’s angular velocity (magnitude and direction)?
*October 6, 2014 by M*

**Precalculus**

An airplane flies 180 miles from point A in the direction 135° and then travels in the direction 240° for 90 miles. Approximately how far is the airplane from A? (Round your answer to the nearest whole number.)
*October 25, 2014 by Anonymous*

**Socials - World War I**

Hey, could someone please give me some documentary links telling about the world war I? The teacher also showed us this documentary in class, and I was trying to look for it, but I cant find, I think it was called Canada in World War I. And I had some questions related to it. ...
*October 19, 2011 by Mysterious*

**Physics**

A roller coaster cart travelling due north at 20m/s that turns left during an interval of 4.0s without changing speed. Find the average acceleration. I understand the mathematics behind it (using pythagoras's theorem to find velocity and the formula acceleration = velocity/...
*March 17, 2013 by Annie*

**physics**

an airplane was moving with a velocity equal to 150 mph when the velocity was increased with uniform acceleration to 300 mph in 5 min. Calculate the number of miles the airplane traveled during that interval
*June 21, 2013 by Jen*

**physics**

Betty Bodycheck (mB = 50 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 45.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*February 10, 2012 by sara*

**physics**

Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 46.3 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*October 7, 2012 by raven*

**pre calculus**

A airplane is 145 miles North and 85 miles west of an airport. What is the compass direction from the airport to the airplane?
*December 10, 2012 by Karen*

**social studies check answers**

2.B 3.A 4.C 5.B 2.Caribbean South America has A. a predominantly tropical climate. B. varied climate zones due to coastal and highland areas. C. an arid climate in the north and a wet climate in the south. D. mountain climates determined by elevation. 3.Which statement best ...
*April 16, 2014 by matt*

**Physics**

Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 46.3 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*October 7, 2012 by raven*

**physics**

A river flows due east at 1.91m/s.A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.3m/s due north relative to the water. A.What is the velocity of the boat relative to shore? How far downstream has the boat moved by the ...
*October 4, 2010 by dillon*

**physics**

Consider a level flight turn of a propeller-driven airplane in which the airplane makes a complete circular turn in 1.6 min. If the plane's speed is 180 m/s, what is the radius of the circle? 1 m What is the centripetal acceleration of the plane? 2 m/s2
*December 8, 2010 by beth*

**physics**

An airplane is flying horizontally with a speed of 1000 km/hr (278 m/s) when it drops a payload. The payload hits the ground 37 s later. (Neglect air drag and the curvature of the Earth. Take g = 10 m/s2.) (a) At what altitude H is the airplane flying?
*March 4, 2011 by kelly*

**engineering**

an airplane was moving with a velocity equal to 300 mph when the velocity was increased with uniform acceleration to 600 mph in 5 min. calculate the number of miles the airplane traveled during that interval of time
*January 29, 2012 by Anonymous*

**physics**

Betty Bodycheck (mB = 50.2 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 45.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*February 10, 2012 by sara*

**Physics**

An airplane flies 200 km due west from city A to city B and then 345 km in the direction of 32.0° north of west from city B to city C In straight-line distance, how far is city C from city A?
*September 14, 2010 by Lisa*

**physics**

An airplane flies 200 km due west from city A to city B and then 245 km in the direction of 36.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A?
*April 14, 2011 by Anonymous*

**physics**

An airplane flies 200 km due west from city A to city B and then 245 km in the direction of 31.5° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A?
*April 19, 2011 by diamond*

**ap physics**

A golfer sees the green (where the hole is) at a distance of 120.0 m at heading 75.0° north of west. She also sees her teammate at a distance of 60.0 m and heading 15.0° north of east. What distance and direction would her teammate have to land the ball to hit the green?
*June 20, 2014 by iz*

**Physics HELP!**

An airplane flies due north at 240 km/h with respect to the air. There is a wind blowing at 75 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground? __?__km/h __?__° east of north
*October 25, 2012 by Anna*

**trig**

A barge is pulled by two tugboats. The first tugboat is traveling at a speed of 16 knots with heading 135°, and the second tugboat is traveling at a speed of 15 knots with heading 195°. Find the resulting speed and direction of the barge. (Round your answers to the nearest ...
*November 16, 2012 by janice*

**Maths2**

A plane leaves an airport X,20.6degree east and 36.8 degree north,and flies due south along the same longitude for 8hrs at the rate of 1000km/h to another airport Y,20.6 degree east and tita degree south.the plane then flies west to another airport Z for 8hrs at the same speed...
*November 23, 2012 by Tosin*

**Physics ASAP**

A proton, traveling with a velocity of 6.8 × 106 m/s due east, experiences a magnetic force that has a maximum magnitude of 8.6 × 10-14 N and direction of due south. What are the magnitude and direction of the magnetic field causing the force? If the field is up, then enter a ...
*August 3, 2014 by Luke*

**physics-please help**

A proton, traveling with a velocity of 6.8 × 106 m/s due east, experiences a magnetic force that has a maximum magnitude of 8.6 × 10-14 N and direction of due south. What are the magnitude and direction of the magnetic field causing the force? If the field is up, then enter a ...
*August 4, 2014 by Sara*

**Gr. 12 Math - Trigonometry 3D**

From the top of a 1900 m mountain, the angle of depression to a cathedral that is due east of the mountain is 38 degrees. The angle of depression to a bridge due north of the mountain is 42 degrees. Find the straight-line distance from the cathedral to the bridge. This is a ...
*November 11, 2007 by Michelle*

**Physics**

A proton, traveling with a velocity of 6.8 × 106 m/s due east, experiences a magnetic force that has a maximum magnitude of 8.6 × 10-14 N and direction of due south. What are the magnitude and direction of the magnetic field causing the force? If the field is up, then enter a ...
*August 2, 2014 by Luke*

**Calculus**

A pilot wishes to reach an airport 350 Km due east from his present position. The wind is blowing from N25degreesE with a speed of 80 Km/h and the planes airspeed is 400 Km/h. What ground speed and what heading should the pilot steer to reach the airport? How many minutes will...
*May 4, 2010 by Ariza*

**math**

after take off an airplane is flying at a height of 8,000 feet above ground.It has traveled a distance of 10,000 feet from the airport.if sam was to spot under the airplane ,how far would he have to travel?
*January 27, 2009 by jennifer*

**math**

1)An object is suspended from two points on the ceiling 25cm apart by two pieces of rope of lengths 27cm and 24 if the object exerts from a downward force 200N then find the tension in each rope 2)An airplane heading north at 550km/h encounters a wind of 175km/h from 32 ...
*September 17, 2011 by Abraham*

**Physics**

An airplane has a velocity of 454 km/h relative to the moving air. At the same time, a wind blows northward with a speed of 99 km/h relative to earth. The airplane is moving in an easterly direction relative to earth. Find the speed of the airplane to relative to earth. So, i ...
*October 1, 2010 by Jon*

**physics**

a river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10m/s due north relative to the water. (a) what is the velocity of the boat relative to the shore? (b) if the river is 300 m wide, how far...
*February 28, 2013 by suzanne*

**Physics**

An airplane takes off at 9:00 A.M. and flies at 300. km/h until 1:00 P.M. At 1:00 P.M. its speed is increased to 400. km/h, and it maintains this speed until it lands at 3:30 P.M. What is the airplane’s average speed for the entire flight?
*June 16, 2014 by Piper*

**math**

Puck is making a scale model of an airplane. The actual airplane is 98 feet long. The scale of the model is 1 cm : 4.7 ft. What is the length of the model? [Round to the nearest hundredth, if necessary.]
*January 4, 2012 by zoe*

**Math 11**

An airplane is flying 100 km north and 185 km west of an airport. it is flying at a height of 7 km. A) what is the straight-line distace to the airport? B) what is the angle of elevation of the airplane, from the point of view of the airport?
*October 20, 2014 by Priya*

**MATH!!!!**

The CN Tower is 553m high. A person in a boat on Lake Ontario, at a point B due south of the tower, observes the top (T) of the tower at an angle of elevation of 8 degrees. At the same time, another person, at a point C on a bearing {S 85 degrees E } from the towerobserves an ...
*September 26, 2006 by Kaitlin*

**calculus**

A pilot wishes to reach an airport 350 Km due east from his present position. The wind is blowing from N25degreesE with a speed of 80Km/h and the planes airspeed is 400 km/h. What ground speed and what heading should the pilot steer to reach the airport? How many minutes will ...
*May 5, 2010 by Anonymous*

**physics**

A jet airplane is in level flight. The mass of the airplane is m = 8870 kg. The plane travels at a constant speed around a circular path of radius R = 9.55 miles and makes one revolution every T = 0.126 hours. What is the magnitude of the lift force acting on the plane?
*October 9, 2013 by kg90*

**Social Studies**

1. what post war industry became more important in south carolina due to new roads? a. tourism b. agriculture c. manufacturing d. mining I think its a. please help as soon as possible
*April 29, 2015 by basketball&batman*

**trig**

An airplane is heading north at an airspeed of 500 km/hr, but there is a wind blowing from the northwest at 50 km/hr. how many degrees off course will the plane end up flying, and what is the plane's speed relative to the ground? So here is my work... 50cos(45)+500= 535.355 ...
*May 28, 2015 by Dan*

**pre-calculus**

A plane flies due west at 250 km/hour while the wind blows south at 70 km/hour. Find the planes resultant velocity and direction.
*April 12, 2011 by Zene*

**Trigonometry**

Three ships are situated as follows: A is 225 miles west of C while B, due south of C, bears S25*10'E from A. a. How far is B from A? b. How far is B from C? c. what is the bearing of A from B? PLEASE EXPLAIN
*September 9, 2012 by Roy*

**Statistics**

According to a recent pole only 21% of Americans were satisfied with the direction the U.S. is heading. To investigate the reliability of the report an independent polling organization surveyed 500 Americans and inquired as to whether or not they were satisfied with the way ...
*March 26, 2013 by Bill*

**conceptual physics **

you are in a plane traveling due North at 325 km/hr. The plane encounters a headwind (South) wind of 50 km/hr. What is the resultant velocity of the plane?
*September 24, 2014 by harper*

**pre calc**

I am sooo confussed on my homework. #1 Two cars lave an intersection at the same time. One is headed south at a constant speed of 30mph. the other is heading west at a constant speed of 40mph. Build a model that expresses the distance (d) between thec ars as a funtion of time...
*September 18, 2012 by Rebekah*

**Geography**

if you traveled south from South America, What is the next continent you would reach? Do you have a globe you can look at? If not, do you know which continent is located at the very southern-most point of the earth? if you traveled south from south america,waht is the next ...
*October 31, 2006 by cindy*

**Physics**

A model airplane of mass 0.9 kg is attached to a horizontal string and flies in a horizontal circle of radius 5.2 m, making 1.2 revolutions every 8 s. (The weight of the plane is balanced by the upward “lift” force of the air on the wings of the plane.) The accelaration due to...
*December 21, 2010 by Aaron*

**Physics**

A model airplane of mass 0.9 kg is attached to a horizontal string and flies in a horizontal circle of radius 5.2 m, making 1.2 revolutions every 8 s. (The weight of the plane is balanced by the upward “lift” force of the air on the wings of the plane.) The accelaration due to...
*December 21, 2010 by Aaron*

**physics**

The velocity of sound in the atmosphere is c=300 m/s. An airplane is traveling with velocity v=600 m/s at an altitude of h=8 km over an observer. How far horizontally past the observer in kilometers will the plane be when the observer first hears the noise of the airplane?
*April 21, 2013 by help*

**Physics**

A 1900 kg Oldsmobile traveling south on Abbott Road at 13.6 m/s is unable to stop on the ice covered intersection for a red light at Saginaw Street. The car collides with a 3854 kg truck hauling animal feed east on Saginaw at 9.8 m/s. The two vehicles remain locked together ...
*April 26, 2014 by JAY Z*

**us history**

Which of the following statements is FALSE about Andrew Johnson's perspective about the South? Answer He viewed Southern plantation aristocrats with contempt. He wanted to treat the South similar to a conquered province. He blamed individuals for leading the South to war. He ...
*April 17, 2012 by Dave*

**English**

1. The south exit is close to the bus stop. 2. The south exit is close by the bus stop. 3. The south exit is near by the bus stop. 4. The south exit is nearby the bus stop. 5. The south exit is next to the bus stop. ========================= Which ones are grammatical? What ...
*June 29, 2015 by rfvv*

**physics**

A wave that is travelling due west causes particles of the conducting material to ibrate "north/south". This wave is best described as: a. longitudinal b. transverse c. translute d. permute
*November 12, 2010 by Amber*

**physics**

A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 9.2 m/s due north relative to the water. (a) What is the velocity of the boat as viewed by an observer on the shore? m/s at ° east of ...
*December 13, 2012 by Anonymous*

**Physics - Momentum of cars at intersection**

Car A(1750kg) traveling due south and car B (1450kg)due east. They reach the same intersection at the same time and collide. The cars lock together and move off at 35.8km/h[E31.6degS]. What was the velocity of each car before the collided? I tried this question using the law ...
*September 1, 2010 by Shaila*

**English**

1. I'm excited because I get on the airplane for the first time. 2. This is my first trip abroad, so I am very excited. 3. I got off the airplane at the airport. 4. I waved on the laddle to the airplane. 5. I was excited because I could go abroad for the first time in my life ...
*June 7, 2009 by John*

**physical**

Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 21 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 30 km due north. If it...
*October 13, 2012 by Anonymous*

**Physics**

Oasis B is a distance d = 7.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 22 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 34 km due north. If it...
*February 9, 2014 by Robin*

**physics**

A model airplane of mass 0.7 kg is attached to a horizontal string and ﬂies in a horizontal circle of radius 5.6 m, making 1.6 revolutions every 7 s. (The weight of the plane is balanced by the upward “lift” force of the air on the wings of the plane.) The accelaration ...
*December 10, 2011 by tanya*

**physics**

A model airplane of mass 1.5 kg is attached to a horizontal string and ﬂies in a horizontal circle of radius 5.8 m, making 2 revolutions every 8 s. (The weight of the plane is balanced by the upward “lift” force of the air on the wings of the plane.) The accelaration ...
*November 25, 2012 by James*

**phsics**

a car moving with an initial velocity of 60 m/s south has a constant acceleration of 10 m/s^2 north. After 12 seconds its velocity will be: A) 60 m/s south B)60 m/s north C) 40 m/s north D) 40 m/s south
*September 2, 2013 by jack*

**Sciences**

A model airplane whose mass is 875 grams flies in a horizontal circle of radius 3.46 m at the end of a string which is at an angle of 10.5o below the horizontal. Find: a) The tension in the string. b) The speed of the airplane. I have answers but I am stuck on the process like...
*July 2, 2013 by TCC*

**Geography**

1.1.1define the term drainage basin 1.1.2what is the difference between drainage basin and catchment area? 1.1.3 name any two water management areas in south africa. 1:2 THE IMPONTANCE OF MANAGING DRAINAGR BASIN CATCHMENT AREAS IN SOUTH AFRICA SHOULD BE A CORCERN FOR ALL SOUTH...
*February 13, 2015 by Jeannett*

**MICRO ECONOMICS**

You have been allocated an investment budget of $100 million U.S. You are to make a strategic assessment of the microeconomic strengths and weaknesses of the industry in South africa in REFREIGRATORS & FREEZERS as a potential location for this new capital investment. An your ...
*March 3, 2007 by AKHIL*

**Math**

An airplane traveled a distance d in t hours, where r>1, and arrived one hour late. The airplane would have arrived on time if it had traveled at what rate per hour? a. t-1 b. d/t-1 c. d/t+1 d. d/t-1 e. d/t+1
*July 2, 2013 by Grace*

**physics**

The air exerts a forward force of 10 N on the propeller of a 0.20 kg model airplane. If the plane accelerates forward at 5.0 m/s2, what is the magnitude of the resistive force exerted by the air on the airplane in Newtons ?
*October 7, 2011 by savy*

**Physics**

A motor scooter rounds a curve on the highway at a constant speed of 25.0 m/s. The original direction of the scooter was due east; after rounding the curve the scooter is heading 28 degrees north of east. The radius of curvature of the road at the location of the curve is 160 ...
*September 15, 2014 by Emily*

**PHYSICS (VECTOR)**

A plane is flying due South (270ş) at 474.8 km/h. A wind blows from West to East (0°) at 46 km/h. Find the direction of the plane's travel. Report your answer in degrees from 0° as a reference.
*October 26, 2014 by tay*

**Physics**

Betty Bodycheck (mB = 55.1 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 41.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*October 27, 2011 by Jake*

**physics**

Betty Bodycheck (mB = 51.4 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 42.4 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*October 8, 2012 by kelly*

**geometry**

from an airplane flying 7000 feet above the ground the angle of depression to the base of the control tower is 19 degrees. find the distance from a point on the ground directly beneath the airplane to the control tower.
*June 3, 2010 by Anonymous*

**Physics**

A bus travels 290 km south along a straight path with an average velocity of 81 km/h to the south. The bus stops for 25 min, then it travels 210 km south with an average velocity of 80 km/h to the south. How Long does it lasts ? Answer in units of h . What is the average ...
*September 30, 2013 by Thomas*

**Physics**

A 8.0×10−2- toy airplane is tied to the ceiling with a string. When the airplane's motor is started, it moves with a constant speed of 1.30 in a horizontal circle of radius 0.49 , as illustrated in the figure . Find the angle the string makes with the vertical. Find the ...
*November 3, 2011 by Chris*

**math**

An airplane is 34 ground miles from the end of the runway and 6 miles high when it begins its approach to the airport. To the nearest mile,what is the distance from the airplane to the end of the runway?
*May 1, 2011 by sara*

**Algebra**

An airplane flies 165 miles from point A in the direction 130 degrees and then travels in the direction 245 degrees for 80 miles. Approximately how far is the airplane from A?
*April 24, 2015 by Anne*

**Calculus**

A car passes by a certain point at time t = 0 hours heading east at 40 miles per hour. At t = 1 hour another car passes by the same point heading north at 50 miles per hour. What is the functiuonthat equals the distance between the two cars?
*June 8, 2011 by Liz*

**physics**

Three forces act on a 3 kg box: 10 N South-west, 17 N North-west, 5 N due East. What is the acceleration of the box?
*July 5, 2011 by Kate*

**PHYSIC**

A PLANE IS TRAVELING AT 90 MILES PER HOUR DUE SOUTH. WHAT DO WE KNOW ABOUT IT? 1. ITS SPEED 2. ITS VELOCITY 3. BOTH ITS SPEED AND ITS VELOCITY
*January 14, 2012 by GRISSELL*

**Physic**

A plane is traveling at 90 miles per hour due south. What do we know about it? the speed, its velocity or both its speed and its velocity?
*January 14, 2012 by Eddie*

**trig**

A plane is flying due south at a speed of 192 mph. a wind is blowing in at 53 degrees at 13 mph. what is the bearing of the plane?
*March 27, 2014 by brittany*

**physics**

a bus travels 280 km south along a straight path with an avg velocity of 88 km/h to the south. then it travels 210 km south with an avg velocity of 75 km/h to the south. a) how long does the 1st trip last? b) how long does the 2nd trip last? c) what is the avg velocity for the...
*September 21, 2014 by nicole*

**Physics please check**

A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.125 m). The charges on the circle are -4.60 µC at the position due north and +5.00 µC at the position due east. What is the magnitude and ...
*December 14, 2007 by Mary*

**Physics**

An electron moves with speed 2.46 x 105 m/s in a 1.39-T uniform magnetic field. At one instant, the electron is moving due west and experiences an upward magnetic force of 2.81 x 10−14 N. Caculate the magnetic field (angle). What is the direction of the magnetic field? ...
*March 1, 2012 by Ashley *

**math plz help**

man on 12m tower, he observed two houses. the angle of depression to one of them was 6' and the other is 3'. how far apart the houses are. Calculate the distance between the house if: a)the houses are on the same side of the tower b)the houses are on opposite sides of the ...
*December 14, 2014 by Emmauel*

**trigometry**

man on 12m tower, he observed two houses. the angle of depression to one of them was 6' and the other is 3'. how far apart the houses are. Calculate the distance between the house if: a)the houses are on the same side of the tower b)the houses are on opposite sides of the ...
*December 14, 2014 by Emmauel*

**math**

an airplane flew with the wind for 30 minutes and returned the same distance in 45 minutes. If the cruising speed of the airplane was 320 mph what was the speed of the wind ?
*September 23, 2010 by s*

**English**

1. A: Where can we hear this announcement? B: We can here it in an airplane. 2. A: Where can we hear this announcement? B: We can here it on an airplane. -------------------- Q1: Do we have to use 'in' or 'on'? Q2: Is the expression 'announce' (from athe pilot) correct?
*April 13, 2015 by rfvv*

**Any Math Tutor Online? Help**

man on 12m tower, he observed two houses. the angle of depression to one of them was 6' and the other is 3'. how far apart the houses are. Calculate the distance between the house if: a)the houses are on the same side of the tower b)the houses are on opposite sides of the ...
*December 14, 2014 by Emmanuel*