A jet flew at an average speed of 480 mph from Point X to Point Y. Because of head winds, the jet averaged only 440 mph on the return trip, and the return trip took 30 minutes longer. How many

68,685 results
  1. physics

    a jet pilot takes his aircraft in a vertical loop. a) if the jet is moving at a speed of 2000 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0g's

  2. Physics

    A jet airliner moving initially at 915 mph (with respect to the ground) to the east moves into a region where the wind is blowing at 319 mph in a direction 78◦ north of east. What is the new speed of the aircraft with respect to the ground? Answer in

  3. MATH HELP! CHECK MY ANSWER ASAP!

    1. The formula V = lwh is used to calculate the volume of a rectangular prism. What is the equation solved for h? (1 point) a. Vlw = h b. Iw/V = h c. V/Iw - h** d.Vh = lw 2. What is the equation x = y + z solved for z? (1 point) a. x + y = z b. x/y = z c.

  4. Physics

    A jet airliner moving initially at 369 mph (with respect to the ground) to the east moves into a region where the wind is blowing at 985 mph in a direction 69◦ north of east. What is the new speed of the aircraft with respect to the ground? Answer in

  5. Math

    An executive drove from home at an average speed of 40 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 80 mph. The entire distance was 240 mi. The entire trip

  6. physics

    On a drive from your home to town, you wish to average 52 mph. The distance from your home to town is 106 miles. However, at 53 miles (half way), you find you have averaged only 39 mph. What average speed must you maintain in the remaining distance in

  7. Algebra

    To measure the speed of the jet stream, a weather plane left its base at noon and flew 800 km directly against the stream with an air speed of 750 km/h. it then returned directly to its base, arriving at 2:24 P.M. What was the speed of jet stream?

  8. Please Help, Physics

    1 A runner dashes from the starting line (x = 0) to a point 130 m away and then turns around and runs to a point 11 m away from the starting point in 21 seconds. To the nearest tenth of a m/s what is the average speed? 2 What is the runner's average

  9. physics

    A jet makes a landing traveling due east with a speed of 120 m/s .If the jet comes to rest in 14.0 s , what is the magnitude of its average acceleration?

  10. Algebra

    How do I solve this? A plane flying the 3458-mi from New York City to London has a 50-MPH tailwind. The flight's point of no return is the point at which the flight time required to return to New York is the same as the time required to continue to London.

  11. physics

    A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a total of 2 minutes for the bicycle to return to point A. What is the average speed and average velocity of the bicycle?

  12. Physics

    A person walks first at a constant speed of 4.70 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 2.80 m/s. (a) What is her average speed over the entire trip? (b) What is her average

  13. physics

    A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80 m/s? point a= 30m point b= 0m point c= 25m point d= 12m 1. What is the total mechanical energy of the roller coaster at point A? 2. What is the speed of the roller coaster at point B?

  14. math

    a private jet flies the same distance in 6 hours that a commercial jet flies in 4 hours.if the speed of the commercial jet was 143 mph less than 2 times the speed of the private jet, find the speed of each jet

  15. physics

    A jet makes a landing traveling due east with a speed of 120 m/s . If the jet comes to rest in 14.0 s , what is the magnitude of its average acceleration?

  16. algebra

    two motorcyclists started at the same point and travel in opposite directions. one travels 6 mph faster than the other.In 4 hours they are 432miles apart. how fast is each traveling? speed of slower mph speed of faster mph

  17. Math

    A jet travels 480 miles in 2 hours. At this rate, how far could the jet fly in 8 hours? What is the rate of speed of the jet? In 8 hours it would travel 1920 miles. How would I find the rate of speed?

  18. physics

    Relative to the air, a jet is flying 230 mph due North. But if the wind is blowing 130 mph at 32 degrees north of east, then what is the velocity of the jet relative to the ground? 1. magnitude 2.direction

  19. algebra

    An executive drove from home at an average speed of 45 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 120 mph. The entire distance was 250 miles; the entire

  20. Math

    An executive drove from home at an average speed of 40 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 80 mph. The entire distance was 280 mi. The entire trip

  21. Physics 6A

    A jet pilot takes his aircraft in a vertical loop. If the jet is moving at a speed of 1100 at the lowest point of the loop: A)Determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 5.5 's

  22. math

    A jet flew at an average speed of 480 mph from Point X to Point Y. Because of head winds, the jet averaged only 440 mph on the return trip, and the return trip took 30 minutes longer. How many hours was the flight from Point Y to Point X? how far is it

  23. math

    An aeroplane flew due west for 3hours from P(50°N,70°W) to point Q at an average speed of 600km\hr, the aeroplane then flew south from Q to point Y 500km away. Calculate the longitude of Q and the latitude of Y

  24. Physics

    If the jet is moving at a speed of 1800 at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.4 's The jet is moving in a verticle loop

  25. mathamatics,physics

    1.A vibrating object completes 240 cycles in 15 s. What is its frequency, in hertz? 240 Hz 16 Hz 0.0625 Hz 15 Hz 2.A standing wave is set up in a pool 24 m long which contains six loops. What is the wavelength? 8m 24m 48m 4m 3.A jet is flying at Mach 1.5.

  26. math world problems.

    If the length of each side of a regular hexagon is 10 ft, the what is the distance from a vertex to the center? Andrea and Carlos left the airport at the same time. Andrea flew at 180 mph on a course with bearing 80 degrees, and Carlos flew at 240 mph on a

  27. physics

    Suppose the roller coaster in Fig. 6-41 (h1 = 38 m, h2 = 11 m, h3 = 25) passes point 1 with a speed of 1.60 m/s. If the average force of friction is equal to one sixth of its weight, with what speed will it reach point 2? The distance traveled is 45.0 m.

  28. physics

    Suppose the roller coaster in Fig. 6-41 (h1 = 34 m, h2 = 10 m, h3 = 30) passes point 1 with a speed of 1.60 m/s. If the average force of friction is equal to one fourth of its weight, with what speed will it reach point 2? The distance traveled is 60.0 m.

  29. Algebra

    A jet plane traveling at 550 mph overtakes a propeller plane traveling at 150 mph that had a 22​-hour head start. How far from the starting point are the​ planes? The planes are ____ miles from the starting point.

  30. Oob

    an object moves from point p to q with an average speed of 60m/s and comes back from point q to p with an average speed of 144km/h . what is the average speed of whole journey in m/s?

  31. physics for scientists and engeneers I

    Suppose the roller coaster in the figure (h1 = 40 m, h2 = 14 m, h3 = 30) passes point A with a speed of 2.60 m/s. If the average force of friction is equal to one fifth of its weight, with what speed will it reach point B? The distance traveled is 35.0 m.

  32. Math

    A pilot flew to Montreal and back . The average speed going was 320 mph , and the average speed returning was 480 mph. Find the distance to Montreal if the total flying time was 5 hours.

  33. math(rational functions application)

    The average speed of a jet is 100km/h faster than a cargo plane. To travel 1400km, the cargo plane requires 25% more time than the jet. Find the average speed of the jet. This is the formula I figured out so far. V(average)=V(jet)-V(cargo 100km/h= d/t -

  34. Physics

    A jet pilot is in a vertical loop. If the jet is moving at a speed of 1300 km per hour at the lowest point of the loop determine the minimum radius of the cirlce so that the centripetal acceleration at the lowest point does not exceed 6.0g's.

  35. physics

    A jet pilot takes his aircraft in a vertical loop.f the jet is moving at a speed of 1500 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0 g's.

  36. physics

    an object moves from point p to q with an average speed of 60m/s and comes back from point q to p with an average speed of 144km/h . what is the average speed of whole journey in m/s?

  37. Physics

    On a drive from your home to town, you wish to average 44 mph. The distance from your home to town is 106 miles. However, at 53 miles (half way), you find you have averaged only 33 mph. What average speed must you maintain in the remaining distance in

  38. Calculus

    A 727 jet needs to attain a speed of 200 mph to take off. If it can accelerate from 0 to 200 mph in 30 seconds, how long must the runway be? (Assume constant acceleration)

  39. Physics

    Suppose the roller coaster in Fig. 6-41 (h1 = 30 m, h2 = 11 m, h3 = 20) passes point 1 with a speed of 2.10 m/s. If the average force of friction is equal to one fifth of its weight, with what speed will it reach point 2? The distance traveled is 50.0 m.

  40. physics

    a person walks first a constant speed of 5.00m/s along a straight line from point A to point B and then back along the line from point B to A at a constant speed of 3.00m/s. (a) what is her average speed over the entire trip? (b) what is her average

  41. physics

    the maximum possible speed a certain car can achieve is 80 m/s (about 180 mph) the car covers a distance of 1km while accelerating up to this speed from rest how fast is the car moving at the halfway point of 500m (the answer is not 40m/s) at what point is

  42. physics

    Its 80 kilometers from point A to point B. Someone travels at an average speed of 40 kilometers per day and takes a negligible amount of time at point B to turn around to head back to point A. At what average speed must the person travel back to point A so

  43. 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

  44. trig/ vectors

    Points C and D are directly across from each other on opposite banks of a river. A boat travels across the river directly from point c to point d at a speed of 12 mph. If the current of the river has a speed of 4 mph, at what angle, and speed, must the

  45. math70

    An executive drove from home at an average speed of 30 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 75 mph. The entire distance was 156 mi. The entire trip

  46. physics

    A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a total of 2 minutes for the bicycle to return to point A. What is the average speed and average velocity of the bicycle?

  47. physic

    Average Speed 1. In the 2008 Summer Olympics, Usain Bolt won the 100-m race in 9.69 s. What was his average speed? 2. Light from the sun reaches Earth in 8.3 min. The speed of light is 3.0108 m/s. How far is Earth from the sun? 3. In Major League Baseball,

  48. Math (quick help pls)

    Selena took 20 seconds to swim from point A to point B at a speed of 4.5 m/s. She took 18 seconds to swim back from point A to point B. Find Selena's average speed when she swam from Point B to Point A (Help me get to the answer please ty)

  49. physics

    Two people take identical jet skis across a river, traveling at the same speed relative to the water. Jet ski A heads directly across the river and is carried downstream by the current before reaching the opposite shore. Jet ski B travels in a direction

  50. Math

    The world record for cycling a stretch of 20 kilometers is 26 minutes. This corresponds to an average speed of, approximately, (A) 29 mph (B) 46 mph (C) 32 mph (D) None of these

  51. PHYSICS PLEASE HELP

    A particle travels counterclockwise around the origin at constant speed in a circular path that has a diameter of 2.50 m, going around twice per second. Point Q is on the path halfway between points P and R, which lie on the x axis and the y axis,

  52. physics

    A runner dashes from the starting line (x = 0) to a point 84 m away and then turns around and runs to a point 37 m away from the starting point in 30 seconds. To the nearest tenth of a m/s what is the average speed?

  53. Physics

    A car is driven from point A to B at a constant speed of 25.0 m/s along a straight line, and then back from point B to A at a constant speed of 20.0 m/s. The values of the average speed over the entire trip is?

  54. PHYSICS 6A centripetal acceleration

    A jet pilot takes his aircraft in a vertical loop. If the jet is moving at a speed of 1100km/h at the lowest point of the loop: A)Determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 5.5g's

  55. physics

    A jet starts of at a point A and is flying horizontally. And person is standing at a point B on the ground which is to the right of point A. When the jet is directly over the person, the person hears sound coming from point A. The average air temp is 20

  56. algebra

    During a 555-mile flight, a plane flew at two different speeds. For the first part of the trip, the average speed was 105 mph. Then the tailwind picked up, and the remainder of the trip was flown at an average speed of 115 mph. The entire trip took 5

  57. dynamics

    A racecar is initially travelling at 75 mph at point A as it enters the S-curve shown. In order to successfully traverse the curve, the racecar driver applies his brakes and decelerates uniformly between point A and B. Point B is located 750 ft down the

  58. DYNAMICS

    A racecar is initially travelling at 75 mph at point A as it enters the S-curve shown. In order to successfully traverse the curve, the racecar driver applies his brakes and decelerates uniformly between point A and B. Point B is located 750 ft down the

  59. math in distress

    A salesman drove 480 miles from Pittsburgh to Hartford. The next day he returned the same distance to Pittsburgh in half an hour less time than his original trip took, because he increased his average speed by 4 mph find his original speed. Okay... I did

  60. algebra

    Car A leaves a certain point traveling at an average speed of 40 mph. 3 hours later, car B leaves the same point traveling at an average speed of 55 mph. How soon will B catch up to A? 4 6 8 10

  61. math

    Boat A leaves point 1 for point 2 traveling at 52 mph. At the same time boat b leaves from point 2 to point 1 at 74 mph. Assume the distance from point 1 to point 2 is 882 miles. How long will it take them to meet? Give your answer in hours. A) 3 B) 4 C) 6

  62. Math

    A jet pilot is making a 1000 mile trip in her military Tomcat. She flies 800 mph for one hour and decides she wants to finish the trip so that she would have flown at an average of 1000 mph. How fast should she go to finish the trip and meet her

  63. Math

    A jet pilot is making a 1000 mile trip in her military Tomcat. She flies 800 mph for one hour and decides she wants to finish the trip so that she would have flown at an average of 1000 mph. How fast should she go to finish the trip and meet her

  64. algebra

    An executive drove from home at an average speed of 45 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 120 mph. The entire distance was 250 miles; the entire

  65. math

    An executive drove from home at an average speed of 45 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 120 mph. The entire distance was 250 miles; the entire

  66. Physics

    If the jet is moving at a speed of 1800 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.4 g's The jet is moving in a verticle loop

  67. Math

    An airplane, after 1 hour in the air, arrives at a point 350 miles south of its departure point. There was a steady wind of exactly 25 mph from the northwest during the entire flight. Which represents the airplane's average air speed?

  68. math

    A jet plane traveling at 500 mph overtakes a propeller plane traveling at 200 mph that had a 2-hour head start. How far from the starting point are the plains?

  69. Algebra1

    1. A bicycle racer covers a 75 mile training route to prepare for an upcoming race. If the racer could increase his speed by 5 mph, he would complete the same course in 3/4 of the time. Find his average rate of speed. 2. Nina drove for 6 hours at an

  70. Math

    Emilio left Main Road at 8 A.M and arrived at Lame Lane at 2 P.M. His average for the whole journey was 60 mph. For the first 70% of the trip, he drove at an average speed of 65 mph. For the next 25% of the remaining trip, his average was 54 mph. Find his

  71. math

    An aeroplane flew from point X to Y on a bearing of 120 degree 300km apart, it then flew 450km to point Z on bearing of 60 degree a) How far north of Y is Z. b) How far west of Y is point X. c) What is the bearing of Z from X.

  72. Physics

    On a drive from your home to town, you wish to average 52 mph. The distance from your home to town is 108 miles. However, at 54 miles (half way), you find you have averaged only 39 mph. What average speed must you maintain in the remaining distance in

  73. Math

    A van travels for 3 hours at an average speed of 40 mph. How much longer must the van travel at an average of 55 mph so that the average speed for the entire trip will be 50 mph?

  74. Calculus

    Optimization: A man on an island 16 miles north of a straight shoreline must reach a point 30 miles east of the closet point on the shore to the island. If he can row at a speed of 3 mph and jog at a speed of 5 mph, where should he land on the shore in

  75. physic

    Block _____ Name ________________________________________ Date __________ Average Speed 1. In the 2008 Summer Olympics, Usain Bolt won the 100-m race in 9.69 s. What was his average speed? 2. Light from the sun reaches Earth in 8.3 min. The speed of light

  76. physics

    a car travels 40 miles at an average speed of 80 mph and then travels 40 miles at an average speed of 40 mph. The average speed of the car for this 80 mile trip is: A) 80 mph B) 72.5 mph C) 60 mph D) 53.3 mph E) 40 mph

  77. physics

    a man drives with an average speed of 25 mph for 20 minutes. he rests at his destination for 1 hour and then returns home with an average speed for this leg of the trip of 15 mph A) what is his average speed for the round trip B) What is his average

  78. Physics

    A car accelerates from zero to 80 mph in 8.0 seconds. What is the average speed during this activity? So I thought to calculate average speed it is S = distance/time So 80/8 would be 10 m/s, but the answer is 40 MPH and I have no clue how :(

  79. Physics III

    The “average” driver drives ~15,000 miles per year. Let’s assume ~10,000 miles of that is interstate driving. Using your models from parts (b) and (c) again, how much does the average driver spend per year if their average speed is 55 mph, 65 mph,

  80. Physics

    If the jet is moving at a speed of 1800 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0 g's.

  81. physics

    If the jet is moving at a speed of 1500 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0 g's.

  82. Algebra

    A car traveled 60% of the way from town A to town B at an average speed of 50 mph. The car travels at an average speed of "S" mph for the remaining part of the trip. The average speed for the entire trip was 45 mph. What is "S"?

  83. physics

    A runner dashes from the starting line (x = 0) to a point 127 m away and then turns around and runs to a point 38 m away from the starting point in 13 seconds. To the nearest tenth of a m/s what is the average speed? What is the runner's average velocity

  84. math-pre calc

    On a drive from your home to town, you wish to average 48 mph. The distance from your home to town is 106 miles. However, at 53 miles (half way), you find you have averaged only 36 mph. What average speed must you maintain in the remaining distance in

  85. math

    A bird is flying southward at a rate of 480 mph. There is an east wind blowing at 60 mph. What is the new speed and direction of flight of the bird?

  86. physics

    You are riding on a jet ski at an angle upstream on a river flowing with a speed of 2.8 m/s. Suppose the jet ski is moving at a speed of 18 m/s relative to the water. (a) At what angle must you point the jet ski if your velocity relative to the ground is

  87. equation

    A fox and an eagle lived at the top of a cliff of height 6m, whose base was at a distance of y metres from a point A on the ground. The fox descends the cliff and went straight to the point A. The eagle flew vertically up to a height x metres and then flew

  88. math stuck please help!!!

    A private plane traveled from Seattle to a rugged wilderness , at an average speed of 252 mph . on the return trip , the average speed was 180 mph . if the total time was 9 hours how far is Seattle from the wildness

  89. from my 11:40 post

    if the average speed of ALL 5 coasters is no more than 91 mph then that last coaster has to be 100 mph to reach a speed of 91 on average. if superman goes at 99 then the average would be only 90.8 if it's at 100, the average would be 91 exactly

  90. physics

    The pendulum shown right has a mass of 0.26 kg and moves to the right from point B to point A. At point B the speed of the mass is 3.2 m/s. (i) What is the change in the gravitational potential energy in the motion from B to A? (ii) What is the mass speed

  91. MATH

    Matt and Anna are frequent fliers on Fast n Go Airplanes. They often fly between two cities that are a distance of 1680 miles apart. On one particular trip, they flew into the wind and the trip took 4 hours. the return trip with the wind behind them, only

  92. physics

    A runner dashes from the starting line (x = 0) to a point 91 m away and then turns around and runs to a point 30 m away from the starting point in 25 seconds. To the nearest tenth of a m/s what is the average speed?

  93. physics

    A runner dashes from the starting line (x=0) to a point 108 m away and then turns around and runs to a point 19 m away from the starting point in 23.4 seconds. To the nearest tenth of a m/s what is the average speed?

  94. physics

    A runner dashes from the starting line (x = 0) to a point 125 m away and then turns around and runs to a point 27 m away from the starting point in 27 seconds. To the nearest tenth of a m/s what is the average speed?

  95. physics

    A runner dashes from the starting line (x = 0) to a point 108 m away and then turns around and runs to a point 18 m away from the starting point in 21 seconds. To the nearest tenth of a m/s what is the average speed?

  96. math

    Matt and Anna are frequent fliers on Fast n Go Airplanes. They often fly between two cities that are a distance of 1680 miles apart. On one particular trip, they flew into the wind and the trip took 4 hours. the return trip with the wind behind them, only

  97. physics

    A person walks first at a constant speed of 5.10 m/s along a straight line from point circled A to point circled B and then back along the line from circled B to circled A at a constant speed of 3.15 m/s.(a) What is her average speed over the entire trip?

  98. college physics

    A car is driven from point A to B at a constant speed of 25.0 m/s along a straight line, and then back from point B to A at a constant speed of 20.0 m/s. The values of the average speed over the entire trip is?

  99. Math

    An airplane has an airspeed of 300 mph, and it is traveling to the southwest. After two hours it is 282.9 miles from its starting point, at a compass heading of 228.6° from the starting point. what is the speed and direction of the wind?.

  100. Algebra

    I only need the speed and direction of the wind. An airplane has an airspeed of 300 mph, and it is traveling to the southwest. After two hours it is 282.9 miles from its starting point, at a compass heading of 228.6° from the starting point.

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