1. physics

    A speedboat heads west at 115 km/h for 16.0 min. It then travels at 56.0° south of west at 87.0 km/h for 9.0 min. (a) What is the average speed for the trip? (b) What is the average velocity for the trip in magnitude and direction?

    asked by Sandhya on January 21, 2010
  2. Physics

    74.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.10 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.00

    asked by Lisa on September 8, 2008
  3. physics

    A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 11 m/s. The cliff is h = 55 m above the water's surface, as shown below. How long does it take for the stone to fall to the water?

    asked by andrew on December 9, 2009
  4. Physics

    A 96.6-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.79 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.14

    asked by Tim on November 13, 2012
  5. Physics

    An object gets the acceleration 8.0 m/s2 in a vertical direction (y) but 5.0 m/s2 in a horizontal direction (x). What will be the position of the object at the time t=2.0 s if his initial postiotion was (0,0), initial speed in y-direction 0 and in

    asked by Physics: Motion in two dimensions? on May 16, 2014
  6. physics

    a locomotive is accelerating at 1.6 meters per second it passes through a 20.1 meter wide crossing in a time of 4.03 seconds after the locomotive leaves the crossing how much time is required until it's speed reaches 5.3 meters per second

    asked by brandon on October 6, 2014
  7. science

    A new moon is discovered orbiting Neptune with an orbital speed of 9.3 ´ 10 m/s. Neptune’s mass is 1.0 ´ 10 kg. What is the radius of the new moon’s orbit? What is the orbital period? Assume that the orbit is circular. (G = 6.673 ´ 10 N·m/kg)

    asked by paul on March 3, 2014
  8. physics

    Object 1 has a velocity of 3m/s and a mass of 5kg. Object 2 also has a mass of 5kg but isn't moving. Object 1 collides with Object 2 and they move off together. Work out their speed using the principle of conservation of momentum.

    asked by help me on March 3, 2015
  9. Physics

    Just as a car tops a 47 meter high hill with a speed of 36 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?

    asked by Jay on September 23, 2013
  10. physics

    a frog sees an insect at a horizontal distance of 1meter from it .the frog can jump with a maximum speed of 4m/s in any direction .find the mimimum distance that the insect has to keep the frog so that it can escape from the frog

    asked by girl on September 23, 2018
  11. physics

    Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 418 km above the earth’s surface, while that for satellite B is at a height of 731 km. Find the orbital speed for (a) satellite A and (b) satellite B.

    asked by Anonymous on March 5, 2014
  12. Physics

    The Space Shuttle travels at a speed of about 9.11 x 103 m/s. The blink of an astronaut's eye lasts about 93.4 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?

    asked by Briana on September 10, 2013
  13. PHYSICS

    If you hold a coin above your head while in a bus that is not moving, the coin will land at your feet when you drop it. Where will it land if the bus is moving in a straight line at a constand speed? Explain.

    asked by Kelsea on November 4, 2010
  14. Physics

    A ball is thrown straight upward and rises to a maximum height of 20 m above its launch point. At what height above its launch point has the speed of the ball decreased to one-half of its initial value?

    asked by Cara on January 24, 2014
  15. Physics

    The Space Shuttle travels at a speed of about 5.05 x 103 m/s. The blink of an astronaut's eye lasts about 93.5 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?

    asked by Garren on September 10, 2015
  16. PHYSICS

    Which two terms represent a vector quantity and the scalar quantity of the vector's magnitude, respectively? A. velocity and speed B. time and time interval C. acceleration and velocity D. position and displacement I say it's A.

    asked by Anonymous on July 21, 2010
  17. Physics

    A child sits on a rotating merry-go-round, 2.19 m from its center. If the speed of the child is 2.32 m/s, what is the minimum coefficient of static friction between the child and the merry-go-round that will prevent the child from slipping?

    asked by Christian on March 6, 2011
  18. Physics

    A water hose 1.42 cm in diameter is used to fill a 19.5 L bucket. If it takes 1.37 min to fill the bucket, what is the speed at which the water leaves the hose? One liter is equal to 1000 cm3 .

    asked by Samantha George on January 21, 2012
  19. physics

    A ferry is crossing a river. If the ferry is headed due North with speed of 2.5m/s relative to the water and the river's velocity is 3 m/s to the east, what will the boat's velocity be relative to Earth?

    asked by Sam on October 10, 2011
  20. Math

    A bus left for Baguio, and 6 hours later, a train travelling 161 mph tried catching up to the bus. After the train travelled for 8 hours, the train caught up. What was the train's average speed?

    asked by Lyven on October 18, 2017
  21. Physics

    (a) Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to five times the earth's radius of 6.38 106 m. (b) Find the satellite's orbital period. Please Help!

    asked by Mike on January 21, 2013
  22. physics 180

    a hiker travels north at 200m/s north and then turns and travels 200 m/s south. what is: a) the average speed b) the average velocity c) the magnitude and direction in change in velocity

    asked by nabeelah on September 14, 2011
  23. physics

    The length of a moving spaceship is 27.0 m according to an astronaut on the spaceship. If the spaceship is contracted by 14.5 cm according to an Earth observer, what is the speed of the spaceship? I know L=27m and delta L= 0.145 so our contracted length is

    asked by Robby on May 4, 2015
  24. Physics

    Air is vibrating in a tube (closed at both ends) at its fundamental frequency of 160 Hz. If the tube is filled with helium instead, what is its fundamental frequency? Use 1020 m/s for the speed of sound in helium.

    asked by lindsey on January 31, 2013
  25. Physics

    At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (5.00 m/s2)i hat + (6.00 m/s2)j. It moves at constant speed. At time t2 = 5.00 s, its acceleration is (6.00 m/s2)i hat + (−5.00 m/s2)j. What is the radius of the

    asked by Rach on October 4, 2015
  26. physics

    The Space Shuttle travels at a speed of about 5.05 x 103 m/s. The blink of an astronaut's eye lasts about 94.4 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?

    asked by kyle on February 3, 2014
  27. physics 30

    An alpha particle moving at a speed of 5.20x10^4 m/s enters a perpendicular magnetic field with a strength of 3.0 mT. The magnitude of the acceleration of the particle as it enters the magnetic field will be a.bcx10^d m/s^2 ?

    asked by sarah on March 21, 2012
  28. physics

    Just as a car tops a 51 meter high hill with a speed of 85 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?

    asked by m on April 14, 2012
  29. physics 1

    Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 418 km above the earth’s surface, while that for satellite B is at a height of 731 km. Find the orbital speed for (a) satellite A and (b) satellite B.

    asked by Anonymous on March 3, 2014
  30. Physics

    A ball is thrown straight upward and rises to a maximum height of 23 m above its launch point. At what height above its launch point has the speed of the ball decreased to one-half of its initial value?

    asked by Has on August 11, 2013
  31. Science

    A car is moving at a constant velocity when it is involved in a collision.the car comes to rest after 0.45sec with an average acceleration of 65,0 m/s2 in the direction opposite that of the car's velocity. What was the speed ,in km/h, of the car before the

    asked by Gift on March 8, 2013
  32. physics

    A ball is thrown straight upward and rises to a maximum height of 14.6 m above its launch point. At what height above its launch point has the speed of the ball decreased to one-half of its initial value?

    asked by gary on September 18, 2012
  33. Physics

    A 97.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.70 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.80

    asked by Zach on February 18, 2008
  34. physics

    A rifle is fired horizontally. The bullet is found to have traveled 200 meters. If the rifle barrel is 1.90 meters above the ground, at what speed must the bullet have been traveling as it left the barrel?

    asked by anonymous on November 30, 2010
  35. physics

    Just as a car tops a 51 meter high hill with a speed of 84 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?

    asked by 18 on April 15, 2012
  36. physics

    (a) Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to six times the earth's radius of 6.38 106 m. (b) Find the satellite's orbital period.

    asked by Anonymous on April 29, 2010
  37. physics

    A 72.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.53 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.44

    asked by ben on August 12, 2015
  38. physics

    two campers dock a canoe. one camper steps onto the dock. this camper has a mass of 80 kg and moves forward at 4 m/s. with what speed and direction do the canoe and the other move if their combined mass is 110 kg?

    asked by sabeen on January 31, 2011
  39. Physics

    A ball is thrown straight upward and rises to a maximum height of 16 m above its launch point. At what height above the launch point has the speed of the ball decreased to one-half of its initial value?

    asked by Sara on December 19, 2008
  40. physics

    A 1.80-g hailstone, which can be modeled as a particle, falls a vertical distance of 155 m at constant speed. What is the work done on the hailstone by gravity and air resistance? (a) gravity J (b) air resistance J

    asked by joy on March 11, 2018
  41. Physics

    Air is vibrating in a tube (closed at both ends) at its fundamental frequency of 160 Hz. If the tube is filled with helium instead, what is its fundamental frequency? Use 1020 m/s for the speed of sound in helium.

    asked by Scott on January 30, 2013
  42. Science

    In a pond a fish at rest sees a bird diving vertically towards water at the rate of 3m/s vertically above the fish If the refractive index of water is 4/3 .What is the actual speed of the bird

    asked by Hema on April 23, 2018
  43. Physics

    A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 13m/s when the hand is 2.3m above the ground, how long does it stay in the air?

    asked by Mike on April 26, 2011
  44. physics

    Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 427 km above the earth’s surface, while that for satellite B is at a height of 873 km. Find the orbital speed for (a) satellite A and (b) satellite B.

    asked by Regheim Beck on October 9, 2015
  45. physics

    a mass of gas emitted from the rear of toy rocket is initially 0.2kg/s. if the speed of the gas relative to the rocket is 40m/s and the mass of the rocket is 4 kg what is the initial acceleration of the rocket

    asked by onda on May 21, 2010
  46. DYNAMICS

    A car has an initial speed of 25m/s and a constant deceleration of 3m/s^2. Determine thewvelocity of the car when t=4s. What is the displacement of the car during the 4-s time interval? How much time is needed to stop the car? How do i get the

    asked by HELP on February 17, 2013
  47. physics

    A 84.5-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.93 m/s 2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of

    asked by Anonymous on June 9, 2012
  48. physics

    A stuntman plans to run across a roof top and then horizontally off it to a land on the roof of the next building . The roof of the next building is 4.8 m below the first one and 6.2 m away from it . What should be his minimum roof top speed , in m/s , so

    asked by DQ on October 12, 2018
  49. Literature

    Hi, I am currently working on a project for this poem: Because I wanted to write a poem that would make me push away from the table & say Damn, & turn my face, even though I never say that word. Say Look, this is your saddest thing. That’s all. Your

    asked by Katherine on February 24, 2018
  50. chemistry

    How can i Fill in the missing words Ionisation energy, water, melting point, electronegativity, non-polar, solvent, pair, boiling points, polar A covalent bond is formed when a 1________ of electrons is shared between the bonding atoms.when the electrons

    asked by dennis on June 15, 2015
  51. Chemistry

    So I am writing a lab report and Im stuck with calculating the enthalpy change of combustion of the following reaction: Mg+2HCl--> MgCl2+H2 .I am given the mass of Mg which is 5g and the concentration of HCl which is 2M and the volume of HCl which is 50

    asked by Ashley on April 30, 2011
  52. ap chemistry

    the molar heat of fusion for water is 6.01 kJ/mol. the heat capacity for water is 75 J/mol deg. Which expresssion gives the quantity of energy needed to change one mol ice at 0 degrees celsius to liquid water at 25 degrees celsius? a.)6010/(75x25)

    asked by Sarah on September 24, 2010
  53. physics

    A flywheel in the form of a heavy circular disk of diameter 0.83 m and mass 111 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1430 rev/min. a)What is the moment of inertia of the fly- wheel? Answer

    asked by phys101 on October 21, 2011
  54. physics

    A baseball leaves a pitcher's hand horizontally at a speed of 115 km/h. The distance to the batter is 18.3 m. (Ignore the effect of air resistance.) (a) How long does the ball take to travel the first half of that distance? (b) The second half? (c) How far

    asked by tatiana on October 7, 2012
  55. Physics

    A horizontal spring with K = 110 N/m has one end attached to the wall. A 250g block is pushed onto the free end, compressing the spring by 0.190 . The block is then released, and the spring launches it outward. Neglecting friction, what's its speed when it

    asked by Eman on October 12, 2011
  56. Physics

    Jean dangles her watch from a thin piece of string while the jetliner she is in takes off. She notices that the string makes an angle of 22° with respect to the vertical while the aircraft accelerates for takeoff, which takes about 18 seconds. Estimate

    asked by Millie on October 30, 2011
  57. physics

    a rock is tossed straight up with a speed of 30m/s. when it returns it falls into a hole 10m deep. what is the rocks velocity as it hits the bottom of the whole? how long would the rock in the air, form the instant it is released until it hits the bottom

    asked by nicolas on August 30, 2012
  58. physics

    while watching ocean waves at the dock of the bay. otis notices that 10 waves pass beneath him in 30 seconds. he also notices that the crests of succesive waves exactly coincide with the posts that are 5 meters apart. what are the period frequency

    asked by charlie on February 11, 2011
  59. Physics

    A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 190 mi/h in 2.70 s. a.) Find the average acceleration of the plane. b.) Assuming the acceleration is constant, find the distance the plane moves.

    asked by Ashley on September 5, 2013
  60. math

    A woman is sitting in a boat at anchor on a lake. Her boat bobs up and down once every 2.0·s. She notices that when the front of her 3.0·m long boat is at one wave crest, a second crest is at the middle of her boat, and a third is at the end. What is the

    asked by jen on December 8, 2011
  61. physics

    An object is thrown vertically upward with a speed of 19.1 m/s. How high does it rise? I get 1.86e+01 m How long does it take to reach this highest altitude? I get 1.95e+00 s ------------------------------------------------------ I am stuck on part c,

    asked by Luckna on October 8, 2008
  62. science

    a sphere of mass 500.0g is released from point A 5m above the ground and slides down to point B 3.2m through point C 2m in frictionless wire track. (1)determine the particle's speed at points B and C. (2)determine the net work done by the force of graviy

    asked by trevor on January 16, 2013
  63. physics

    friction between tires and pavement supplies the centripetal acceleration necessary for a car to turn. Using the coefficients of friction for rubber on concrete calculate the maximum speed at which a car can round a turn of radius 30 m (a) when the road is

    asked by Marley on February 22, 2015
  64. Science-please help

    The gravitational force of the Earth acting on an object with more mass is stronger than the force on a smaller mass object of the same size, yet they both fall at the same rate of increasing speed (i.e. balls of different masses but with similar sizes

    asked by Karen on February 21, 2009
  65. Physics

    While watching ocean waves at the dock of the bay, Otis notices that 10 waves pass beneath him in 30 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 5 meters apart. What are the period, frequency,

    asked by Shannon on March 14, 2011
  66. physics - HELP ASAP!

    A 3.60 kg ball is dropped from the roof of a building 184.8 m high. While the ball is falling to earth, a horizontal wind exerts a constant force of 12.1 N on the ball. (acceleration of gravity = 9.81 m/s^2) How far from the building does the ball hit the

    asked by Desperate Help! on November 7, 2009
  67. physics

    The frequency of oscillation of the wave emitted by an FM radio station is 80.9 MHz. Find the period of vibration. Radio waves travel at a speed of light; 3 × 10 8 m/s. Answer in units of ns 002 (part 2 of 2) Find the wavelength. Answer in units of m

    asked by amanda and leah on February 26, 2012
  68. Physics

    A firefighter 41.8m away from a burning building, directs Zach stream of water from a ground level fire hose at an angle of 33.0 degrees above the horizontal . If the speed of the streams it leaves the hose is 42.7m/s, at what height will the stream of

    asked by Sarah on September 8, 2013
  69. PHYSICIAL SCIENCE

    JAGGER APPLIES A FORCE TO THE BASEBALL AS HIS ARM MOVES A DISTANCE OF 1.0 M USING A RADAR GUN THE COACH FINDS THAT THE BALL HAS A SPEED OF 18M/S AFTER IT IS RELEASED A BASEBALL HAS A MASS OF 0.15KG CALCULATE THE FORCE THAT JAGGER APPLIED TO THE BALL

    asked by Anonymous on May 3, 2013
  70. physics

    When a high-speed passenger train traveling at 98 mi/h rounds a bend, the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding 0.42 mi ahead. The locomotive is moving at 16 mi/h. The engineer of the passenger

    asked by Anonymous on January 14, 2014
  71. physics

    A public transportation bus travels back and forth along a road, following the position-time graph over the time period shown below. There are five points labeled on the graph. What is the average speed and velocity (magnitude and direction) of the bus

    asked by jake on September 18, 2016
  72. Physics

    A box accidentally falls from the back of a truck and hits the ground with a speed of 15m/s. It slides along the ground for a distance of 45 m before coming to rest. Determine a) the length of time the box slides before stopping c) the time it takes to

    asked by Alex on October 28, 2007
  73. physics

    A baseball leaves a pitcher's hand horizontally at a speed of 115 km/h. The distance to the batter is 18.3 m. (Ignore the effect of air resistance.) (a) How long does the ball take to travel the first half of that distance? (b) The second half? (c) How far

    asked by kristy on September 19, 2013
  74. physics

    A diver springs upward with an initial speed of 1.6 m/s from a 3.5-m board. (a) Find the velocity with which he strikes the water. [Hint: When the diver reaches the water, his displacement is y = -3.5 m (measured from the board), assuming that the downward

    asked by Anonymous on September 29, 2011
  75. physics

    a 100-g bullet is fired horizontally into a 14.9kg block of wood resting on a horizontal surface and the bullet becomes embedded in the block. if the muzzle velocity of the bullet is 250 m/s , what is the speed of the bullet immedatly after the impact

    asked by melissa on February 4, 2008
  76. physics

    A quarterback throws the football to a stationary receiver who is 16 m down the field.The football is thrown at an initial angle of38.5◦to the ground.The acceleration of gravity is 9.81 m/s2.a) At what initial speed must the quarterback throw the ball

    asked by carol on October 24, 2011
  77. Physics

    A bullet of mass 10.6 grams is fired with a speed of 125 meters per second toward a wood block of mass 187 grams initially at rest on a very smooth (assume frictionless) surface. What is the change in momentum of the bullet if it becomes embedded in the

    asked by Matt on October 10, 2013
  78. science

    Mary wants to throw a can straight up into the air and then hit it with a second can. She wants the collision to occur at height h=5.0 m above the throw point. In addition, she knows that she needs t1=4.0 s between successive throws. Assuming that she

    asked by Pratapveer on September 18, 2013
  79. physics

    a brick is dropped (0 initial speed) from the top of a building. the brick strikes the ground in 2.5 seconds. you may ignore air resistant so the brick is in free fall. A)how tall in meters is the building? B) what is the magnitude of the brick's velocity

    asked by josh on July 18, 2010
  80. math

    there are markers every 1000 feet along the side of a road. While driving, Mai passes marker number 15 at 10:05 and marker number 39 at 10:11. find mai's average speed feet per minute. use dimensional analysis to check the reasonableness of your answer.

    asked by anonymous on January 6, 2015
  81. engineering

    a ship is 100km north west of cape town harbour and it sails directly north at a velocity of 30km/h in ei ght hours.calculate its resultant speed with reference to the cape town harbour in magnitude and direction

    asked by Anonymous on February 20, 2013
  82. Science

    While driving to the store, your vehicle traveled 30 miles. While you were traveling, your vehicle traveled at an average speed of 15 miles per hour due to traffic. How long did it take you to get to the store? Calculating Time Formula: Work: I have been

    asked by Cashmere<3 on April 9, 2019
  83. Physics

    A hot-air balloon is rising straight up with a speed of 5 m/s. A ballast bag is released from rest relative to the balloon when it is 8.2 m above the ground. How much time elapses before the ballast bag hits the ground? I don't get what equations or what

    asked by Jerry on September 10, 2010
  84. Physics

    A fireworks rocket is moving at a speed of 48.4 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off with velocities v1 and v2, as shown in the drawing. What is the magnitude of (a) v1 and (b) v2? In the image the two pieces are

    asked by Cheech on October 5, 2013
  85. Physics

    A small ball rolls horizontally off the edge of a tabletop of height h. It strikes the floor a distance x horizontally away from the edge of the table. (Use any variable or symbol stated above along with the following as necessary: g.) (a) How long is the

    asked by Rachel on February 4, 2013
  86. Physics

    A pilot flying low and slow drops a weight; it takes 2.8 s to hit the ground, during which it travels a horizontal distance of 100 m . Now the pilot does a run at the same height but twice the speed. How much time does it take the weight to hit the ground?

    asked by Lina on September 11, 2015
  87. physics

    A car sounds its horn (502 Hz) as it approachs a pedestrian by the side of the road. The pedestrian has perfect pitch and determines that the sound from the horn has a frequency of 520 Hz. If the speed of sound that day was 340 m/s , how fast was the car

    asked by Melissa on June 4, 2012
  88. Physics

    A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 3.00 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance the plane moves.

    asked by Kelly on September 21, 2012
  89. Physics-Work, Energy, and Power

    A 56.9 kg sledder descends an 8.21-meter high hill, encountering a friction force of 11.7 N, Fill in the blanks and determine the speed of the sledder after traveling the 31.7 meters to the bottom of the hill. Top of the hill: KE=0J PE=_ W=_ Work=_ PE=0J

    asked by Anonymous on February 26, 2017
  90. physics

    Two arrows are fired horizontally with the same speed of 31.8 m/s. Each arrow has a mass of 0.149 kg. One is fired due east and the other due south. Find the magnitude of the total momentum of the two arrow system in kg-m/s. (Hint: How do you combine

    asked by Hannah on February 21, 2015
  91. science please check my answer

    A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius is cut in half, by what factor will the speed change? It will double.

    asked by unknown on January 10, 2014
  92. physics

    A dart is thrown horizontally with an initial speed of 6 m/s toward point P, the bull's-eye on a dart board. It hits at point Q on the rim, vertically below P, 0.29 s later. Neglect air resistance. (a) What is the distance PQ? (b) How far away from the

    asked by Connie on October 22, 2010
  93. physics

    A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 2.70 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance the plane moves.

    asked by jojo on January 31, 2016
  94. Physics

    A child is on a swing whose 4.0 m long chains make a maximum angle of 30 deg with the vertical. What is the child's maximum speed? I've found problems relating to this but include mass or delta(x) in how far from stationary. This problem doesnt include

    asked by Anonymous on February 25, 2016
  95. Pre Calculas

    Im really struggling and need help with this 1. One of the tables below contains (x,y) values that were generated by a linear function. Determine which table, and then write the equation of the linear function represented by the Table #1 x 2 5 8 11 14 17

    asked by Ryan on October 5, 2015
  96. physics

    On planet Seeturn, the free fall acceleration is 9.800 N/kg but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 micro C (5.00*10-6) is thrown upward at a speed of 20.1

    asked by john on December 7, 2017
  97. physics

    On planet Seeturn, the free fall acceleration is 9.800 N/kg but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 micro C (5.00*10-6) is thrown upward at a speed of 20.1

    asked by david on December 7, 2017
  98. Chemistry - Periodic Table+Cations(check+help)

    On which side of the periodic table would you find an element whose atom is likely to form a cation? Which atom property is related to this question? Ans: is it the right side of the periodic table that you would find the elements whose atom are likely to

    asked by Farah on February 2, 2011
  99. Chemistry - Periodic Table+Cations(check+help)

    On which side of the periodic table would you find an element whose atom is likely to form a cation? Which atom property is related to this question? Ans: is it the right side of the periodic table that you would find the elements whose atom are likely to

    asked by Farah on February 2, 2011
  100. Physics

    A mass spectrometer is used to examine the isotopes of uranium. Ions emerge from the velocity selector at a speed of 3.00 x 10^5 m/s and enter a uniform magnetic field of 0.600 T directed perpendicularly to the velocity of the ions. What is the distance

    asked by John on March 13, 2013

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