# What is the kinetic energy of a 29 kg dog that is running at a speed of 7.9 m/s (about 18 mi/h)?

45,322 questions, page 164
1. ## English

1. This book is worth reading. 2. This book is not worth 10 dollars. 3. He is worth meeting. 4. This place is worth visiting. 5. New York is worth visiting twice. 6. She is worth prasing. 7. The dog is worth buying. 8. This car is worth purchasing. 9. This

asked by rfvv on April 18, 2016
2. ## physics

A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 3.9 m/s.

asked by Anonymous on January 10, 2010
3. ## ALGEBRA 2

A plane takes off from an aiport and flies east at a speed of 350 mi/h. Ten minutes later, a second plane takes off from the same airport and flies east at a higher altitude at a speed of 400 mi/h. How long does it take the second plane to overtake the

asked by Emily on August 16, 2009
4. ## Physics

A non-rotating spherical planet with no atmosphere has a mass M and radius R. A particle is fired off from the surface with a speed equal to 3/4 the escape speed. Calculate the farthest distance it reaches (measured from the center of the planet) if it is

asked by Avery on March 24, 2010

A softball of mass 0.220 kg that is moving with a speed of 6.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward it is found that the incoming ball has bounced backward with a speed of 4.8 m/s.

asked by Anonymous on December 10, 2009
6. ## Physics

A mass of 100g is attached to one end of a massless rod, 10cm in length, which is pivoted about the opposite end. The rod is held vertical, with the mass at the top, and released. The rod swings. A. What is the speed of the mass at the instant that the rod

asked by Joe on November 10, 2014
7. ## physics

two cars start on opposite sides of a circular track. One car has a speed of 0.015 rad/s;the other car has a speed of 0.012 rad/s. If the cars start p radians apart, calculate the time it takes for the fatser car to catch up with the slower car. the

asked by israa on August 24, 2012
8. ## physics

As some molten metal splashes, one droplet flies off to the east with initial speed vi at angle θi above the horizontal, and another droplet flies off to the west with the same speed at the same angle above the horizontal, as inthe figure. In terms of vi

asked by Anonymous on February 18, 2011
9. ## Physics

A non-rotating spherical planet with no atmosphere has a mass M and radius R. A particle is fired off from the surface with a speed equal to 3/4 the escape speed. Calculate the farthest distance it reaches (measured from the center of the planet) if it is

asked by Avery on March 23, 2010
10. ## Physics

A railroad car (m=3000 kg) is coasting along a level track with an initial speed of 22 m/s. A load of coal is then dropped into the car as sketched in the figure below. (a) What are the velocities of the car and the coal before the collision along the x

asked by David on October 27, 2012
11. ## algebra

An airplane encountered a head wind during a flight between Joppetown and Jawsburgh which took 5 hours and 30 minutes. The return flight took 5hours. If the distance from Joppetown to Jawsburgh is 1600 ​miles, find the airspeed of the plane​ (the

asked by Brandy on February 7, 2017
12. ## physics

As some molten metal splashes, one droplet flies off to the east with initial speed vi at angle θi above the horizontal, and another droplet flies off to the west with the same speed at the same angle above the horizontal, as inthe figure. In terms of vi

asked by natalie on October 15, 2010

1. Why are the Prairie Provinces known as Canada's breadbasket? (1 point) a. more than three-quarters of Canada's farmland is located there b. the people of these provinces love bread c. it has many famous bakeries d. that is the translation from the Cree

asked by Hannah on March 10, 2014
14. ## physics

A 5.05kg sits on a ramp that is inclined at 36.5 degrees above horizontal.The coefficient of kinetic friction between box and ramp is mu k= 0.25. What horizontal force is required to move the box up the incline with a constsant acceleration of 4.3m/s^2?

asked by Anonymous on March 15, 2013
15. ## physics

a window easher pushes his brush up a vertical window at constant velocity by applying a force F as shown below. The brush weighs 12 N and the coefficient of the kinetic friction is 0.2. find the magnitude of force F.

asked by michelle on April 17, 2014
16. ## physics

the coefficient of kinetic friction between the block and inclined plane is 0.28 and angle è = 65°. What is the block's acceleration (magnitude and direction) assuming the following conditions? (a) It is sliding down the slope. m/s2 (b) It has been given

asked by help on December 16, 2008
17. ## engineering mechanics

A person A is trying to keep his balance while on a sled B that is sliding down an icy incline. Let mA = 78kg and mB = 25 kg be the masses of A and B, respectively. In addition, let the static and kinetic friction coefficients between A and B be μs = 0.4

asked by q on December 31, 2012
18. ## Physics

A 19 kg wooden crate is dragged across the driveway. The coefficient of kinetic friction between the wood and concrete is 0.64. A. What is the horizontal force needed to drag the crate uniformly? B. Give a possible value for the coefficient of state

asked by Jessica on November 24, 2009
19. ## MATH

D. Sam and Pete have a job dog-sitting for their neighbor. He pays them \$5.00 for each hour they “sit”. Independent_______________________________ Dependent________________________________ I know the answer to independent I just need help with

asked by Austin on January 3, 2007
20. ## Physics

spiderman is racing from the rooftop to catch the green goblin. he runs 125 m off a building 125 m tall to catch a robber coming out of the bank across thenstreet (30.0m away) if he is running at 10.0m/s will he hit the building, land the robber, or hit

asked by rina on October 28, 2014
21. ## Chemistry

Consider the following errors that could be made when running TLC. Indicate what should be done to correct the error. a) a two-component mixture containing 1-octene and 1,4-dimethylbenzene gave only one spot with an Rf value of .95. The solvent uses was

asked by Jordyn on October 3, 2010
22. ## Math

The position of a car piston within the cylinder is described by the equation: y = S sin(360 r t - 90 Where S is the stroke length of the cylinder, r is the rpm of the crank shaft, and t is the time in minutes. If the stroke length is 2 inches and the

asked by jof on March 30, 2012
23. ## math

the cost per hour of running an assembly line in a manufacturing plant is a function of the number of items produced per hour. The cost function is C(x) = 0.28x^2 - 0.7x + 1 where C(x) is the cost per hour in thousands of dollars and x is the number of

asked by jenn on February 23, 2009
24. ## physics

The drawing below shows an elastic cord attached to two back teeth and stretched across a front tooth. The purpose of this arrangement is to apply a force to the front tooth. (The figure has been simplified by running the cord straight from the front tooth

asked by mayrel on February 17, 2011
25. ## Physics

(a) A body at rest is given an initial uniform acceleration of 8.0 metre per second square for 30 seconds after which the acceleration is reduced to 5.0 metre per second square for the next 20 seconds. The body maintains the speed attained for 60 seconds

asked by Ande2 on October 27, 2018
26. ## PHYSICS

the diagram shows a skateboarder starting a run from Position P (2.5m) at 2.6 m/s. The mass of the skateboarder system (boarde + board) = 74.5kg. Assume that frictional forces can be ignored. a)calculate the speed of the skateboarder at position a(1.5 m)

asked by Sarah N H on January 30, 2010
27. ## physics

A digital audio compact disc carries data along a continuous spiral track from the inner circumference of the disc to the outside edge. Each bit occupies 0.60 mm of the track. A CD player turns the disc to carry the track counter-clockwise above a lens at

asked by Anonymous on November 5, 2012
28. ## physics

A digital audio compact disc carries data along a continuous spiral track from the inner circumference of the disc to the outside edge. Each bit occupies 0.60 mm of the track. A CD player turns the disc to carry the track counter-clockwise above a lens at

asked by Anonymous on November 4, 2012
29. ## Physics

A ball is being twirled in a circle. If the string breaks and we IGNORE gravity, what path will the ball follow after the string breaks? 1. It will slow down and move in a straight line. 2. It will slow down and move in a circle. 3. It will speed up and

asked by Cameron on October 3, 2018
30. ## Psychology

I want to condition a pet pig to come running for a food reward when I blow a whistle. In the process of this conditioning effort, the main idea is to A. pair a neutral stimulus with an unconditioned stimulus. B. teach the pig to pay attention to the sound

asked by Lynd on June 2, 2015
31. ## algerbra1

2. You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high temperature when you are not baking, but you also do not want to waste a lot of time waiting for the oven to reach the desired baking temperature.

asked by Connie on November 16, 2011
32. ## 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

asked by micole on May 14, 2007
33. ## GEN MATH

Solve the ff. problems below. Show your complete solution: 1.) A number added to four times its reciprocal is equal to the sum of 3/2 and the quotient of two or more than three times the same number and four. 2.) A car travelled the first 240 kilometers at

asked by lab on July 31, 2016
34. ## phy

A grinding wheel 0.62 m in diameter rotates at 2400 rpm. (a) Calculate its angular velocity in rad/s. rad/s (b) What are the linear speed and acceleration of a point on the edge of the grinding wheel? linear speed m/s radial acceleration m/s2

asked by mas on October 16, 2010
35. ## Algebra 2

During the first part of a trip a canoeist travels 93 miles at a certain speed. The conoiest travels 5 miles on the second trip at 5mph slower. The total time for the trip is 2 hrs. What was the speed on each part of the trip? I entered 1.999 as answer

asked by Esther on April 1, 2011
36. ## physics

A car travels from city a to city b at a constant speed of 60 km/h.A bus leaves city a 1h after the car and catches it as it enters city b.the distance betwen ehe cities is 240 km.what is the speed of the bus{assumed to be constant] during its journey

asked by faisal on December 17, 2011
37. ## Physics

A boy throws a ball with an initial speed of 40.0 m/s. The angle of the thrown ball is 33.0° above the horizontal.(Neglect the height of the boy and air resistance.) (a) What is the ball's speed in the horizontal direction just before it hits the ground?

asked by Ariel on February 9, 2012
38. ## algebra

A jogger leaves home and runs at a constant speed of 4 miles per hour. Nine minutes later, a bicyclist follows along the same route at a constant speed of 15 miles per hour. Find the bicyclist's travel time needed to catch the jogger.

asked by Alice on September 1, 2011
39. ## physics

A rock is thrown horizontally from a bridge with a speed of 30.3 m/s. If the rock is 27.2 meters above the river at the moment of release, a)how long the rock is in the air? b)what is the horizontal distance to the point of impact from the point of

asked by Nathaniel on November 3, 2010
40. ## phy

A grinding wheel 0.62 m in diameter rotates at 2400 rpm. (a) Calculate its angular velocity in rad/s. rad/s (b) What are the linear speed and acceleration of a point on the edge of the grinding wheel? linear speed m/s radial acceleration m/s2

asked by mas on October 16, 2010
41. ## physics

a cart is moving horizontally along a straight line with constant speed of 30m/s.a projectile is fired from the moving cart in such a way that it will return to the cart has moved 80m.at what speed,relative to the cart and at what angle to the horizontal

asked by john on May 3, 2017
42. ## physics

A car of mass 1500 kg traveling at 15.6 m/s loses its brakes and collides with the rear end of the car in front of it, which has a mass of 1020 kg and is traveling in the same direction at 12.5 m/s. If the smaller car is given a speed of 15.3 m/s by the

asked by YOLO on April 18, 2013
43. ## Physics

Heather and Jerry are standing on a bridge 43m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance.

asked by Dan on September 11, 2014
44. ## physics

A 685 kg elevator starts from rest and moves upward for 2.80 s with constant acceleration until it reaches its cruising speed, 1.71 m/s. (a) What is the average power of the elevator motor during this period? (b) What is the average power during an upward

asked by Eric on December 12, 2010
45. ## Algebra

a round trip flight of 1037.5 miles takes 7 1/2 hours. The part of the flight with the wind takes 1 1/2 less than the other part of the trip. Find the speed of the plane in still air and the speed of the wind I have no idea how to do this...a little bit

asked by Niruuuu on January 19, 2015
46. ## Algebra

a round trip flight of 1037.5 miles takes 7 1/2 hours. The part of the flight with the wind takes 1 1/2 less than the other part of the trip. Find the speed of the plane in still air and the speed of the wind. I have no idea how to do, can u give me a lead

asked by Niruuuu on January 19, 2015
47. ## physics

Anna applies a force of 19.5 newtons to push a book placed on a table. If the normal force of the book is 51.7 newtons, what is the coefficient of kinetic friction? A) .01 B) .20 C) .38 D) .48

asked by alexis on April 7, 2015
48. ## physics

A 1.8 kg object is pulled along the floor with a force of 7.0 N acting horizontally. If the object accelerates at 2.4m/s^2, how much kinetic friction is acting? how do i do this? could you please explain step by step

asked by kerri on December 3, 2009
49. ## physics

A 1.5-kg cart is pulled with a force of 7.3 N at an angle of 40° above the horizontal. If a kinetic friction force of 3.2 N acts against the motion, the cart’s acceleration along the horizontal surface will be

asked by joe on November 12, 2011
50. ## physics

A concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35°. The u kinetic bn the slab and slope is 0.60. Determine the acceleration of the block.

asked by Heran on May 13, 2018
51. ## maths

Consider a 25×25 grid of city streets. Let S be the points of intersection of the streets, and let P be the set of paths from the bottom left corner to the top right corner of which consist of only walking to the right and up. A point s is chosen

asked by rishabh on June 10, 2013
52. ## physics

A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 14 m/s. The cliff is h = 39 m above the water's surface. (a) How long does it take for the stone to fall to the water? (b) With what speed does it strike the

asked by Ashley on January 6, 2010
53. ## Physics

A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 12.6 m higher than A, with speed v/2. Calculate the maximum height reached by the stone above point B. What equation can I use to get the maximum height?

asked by Lindsay on October 5, 2007
54. ## science

An athlete throws a basketball through a hoop. The ball leaves his hands at a height of 2.5 m with a speed of 9.0 m/s. Calculate the speed of the ball when it “swishes” through the hoop. The hoop is at a height of 3.0 m and it is 5.0 m along the court

asked by Jeff on January 22, 2010
55. ## Physics 270-1 Applied

A rock is thrown down with an initial speed of 30.0ft/s from a bridge to the water below. It takes 3.50s for the rock to hit the water. (a) Find the speed (in ft. /s) of the rock as it hits the water. (b) How high is the bridge above the water?

asked by jason on May 8, 2014
56. ## Algebra 2

5.) A boat makes a trip downstream in 5 hours. The return trip against the current takes 12 hours. If the speed of the current is 3 1/2 km/h, what is the speed of the boat in still water? 6.) How far does the boat referred to in Exercise 5 travel

asked by Alex on August 31, 2014
57. ## Algebra

5.) A boat makes a trip downstream in 5 hours. The return trip against the current takes 12 hours. If the speed of the current is 3 1/2 km/h, what is the speed of the boat in still water? 6.) How far does the boat referred to in Exercise 5 travel

asked by Lily on August 31, 2014
58. ## Physics

A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 23 m/s. The cliff is h = 54 m above the water's surface. How long does it take for the stone to fall to the water? With what speed does it strike the water?

asked by Alan Thomas on January 14, 2010
59. ## physics

A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 18 m/s. The cliff is 52 m above the water's surface. How long does it take for the stone to fall to the water? With what speed does it strike the water?

asked by Mari on November 4, 2009
60. ## science

a person walks up a stationary escalator in t1 second if he remains stationary on the escalator then it can take him up in t2 second if the length of the escalator is L,then 1.determine the speed of man with respect to escalator 2.determine the speed of

asked by jo145578 on July 1, 2012
61. ## math

if i drive home with a speed of 60km/h,I will arrive an hour ealier than expected.If i drive 40km/h then i will arrive an hour later than expected.At what speed should i travel in order to arrive BANG on time?

asked by wan on March 16, 2013
62. ## physics

A certain wave is incident on an interface at an angle of 40 deg. The wave emerges into the other material at an angle of 30 deg. Crossing the interface, the wave: a. increased speed b. reduced speed c. maintained constant

asked by Sonya on November 12, 2010
63. ## algebra

A plane takes 3 hours to travel 1500 miles with the wind. it can travel only 1380 miles against the wind in the same amount of time. Find the speed of the wind and the speed of the plane in still air.

asked by phil on October 3, 2014
64. ## science one question

2.Which of the following would be affected if a soaring eagle changed direction but remained at a constant speed? acceleration only velocity only*** acceleration and velocity neither i don't think it would be acceleration since the eagle stayed at a

asked by TTR+S<3 on March 13, 2014
65. ## math

you commute 63 miles one way to work. the trip to work takes 20 minutes longer than the trip home. your avarage speed on the trip home is 12 mph faster. What is your average speed on the trip home?

asked by john on November 7, 2010

Formula T= L+F/S T= time it takes to download file L= latency F= file size s= average speed of the connection Use formula to determine the Latency for a 113-kb file that downloads in 4.4s at an average speed of 43 kb/s?

asked by Alex on January 23, 2011
67. ## science

A bullet of mass 0.062 kg traveling horizontally at a speed of 150 m/s embeds itself in a block of mass 90 kg that is sitting at rest on a nearly frictionless surface What is the speed of the block after the bullet embeds itself in the block?

asked by sara on June 25, 2014
68. ## Physics

An object initially rotating at an angular speed of 1.6 rad/sec turns through 30 revolutions during the time it experienced an angular acceleration of 0.32 rad/s^2. a) For how much time did the acceleration last? b) What was the final angular speed?

asked by Anonymous on November 7, 2016
69. ## Statistics

A department store is running a promo one Saturday by giving out coupons for \$10 of free merchandise. However, one-third of customers spend \$40, and one-third spend\$75. The remainder of customers who come in the store do not take advantage of the promo at

asked by Leslie on June 30, 2013
70. ## physics

The gun, mount, and train car had a total mass of 1.22 106 kg. The gun fired a projectile that was 80.0 cm in diameter and weighed 7502 kg. In the firing illustrated in the figure, the gun has been elevated at è = 18.0° above the horizontal. If the

asked by Anonymous on February 28, 2011
71. ## physics newtons laws

A box of books weighing 280 N is shoved across the floor of an apartment by a force of 390 N exerted downward at an angle of 35.1° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

asked by luc on October 18, 2009
72. ## physics

A box of books weighing 280 N is shoved across the floor of an apartment by a force of 390 N exerted downward at an angle of 35.1° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

asked by luc on October 13, 2009
73. ## Physics

A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.1° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

asked by Anonymous on September 25, 2013
74. ## physics

A box of books weighing 350 N is shoved across the floor of an apartment by a force of 460 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

asked by elana on February 24, 2013
75. ## physics

A loaded dogsled has a mass of 400kg and is being pulled across a horizontal, paced snow surface at a velocity of 4.0m/s (N). Suddenly, the harness separates from the sled. If the coefficient of kinetic friction for the sled on the snow is 0.0500, how far

asked by Jane on October 22, 2010
76. ## physics

A father pulls his young daughter on a sled with a constant velocity on a level surface through a distance of 10 m, as illustrated below. If the total mass of the sled and the girl is 35 kg and the coefficient of kinetic friction between the sled runners

asked by Anonymous on April 11, 2010
77. ## physcis

A box of books weighing 330 N is shoved across the floor of an apartment by a force of 440 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

asked by Anonymous on September 23, 2010
78. ## physics

Unless otherwise stated, all objects are located near the Earth's surface, where = 9.80 . When a horizontal force of 340 is applied to a 68.0 box, the box slides on a level floor, opposed by a force of kinetic friction of 150 . Part A What is the magnitude

asked by sammy on September 29, 2012
79. ## Chemistry

Organic chemists state that the rate of a chemical reaction can be doubled by increasing the reaction temperature by ten degrees Celsius. Explain this drastic increase in reaction rate using the concept of reactins and kinetic molecular theory

asked by Celia on March 31, 2010
80. ## Physics

A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

asked by Seth on October 2, 2011
81. ## physics

A box of books weighing 350 N is shoved across the floor of an apartment by a force of 460 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

asked by elana on February 24, 2013
82. ## Physics

a ferrari and a porsche begin a race with a moving start and each car moves with constant speed. the ferrari laps overtakes the porsche after the porsche has completed 9 laps. if the speed of the ferrari had been 10 km/hr less the porsche would have

asked by Anonymous on October 22, 2009
83. ## Physics HELP!

A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/ min. When switched off, it rotates through 41.0 revolutions before coming to rest. (a) Find the angular speed in rad/s. (b) Find the displacement in radians. (c) Find the

asked by Mel on October 26, 2012

A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/ min. When switched off, it rotates through 41.0 revolutions before coming to rest. (a) Find the angular speed in rad/s. (b) Find the displacement in radians. (c) Find the

asked by Tom on October 29, 2012
85. ## math- precalculus

I've attempted this problem a few times but I can't get the right answer. Can someone show me how I can do it? A ship leaves the port of Miami with a bearing of 100 degrees and a speed of 15 knots. After 1 hour, the ship turns 90 degrees toward the south.

asked by jared on March 21, 2009
86. ## Precalculus 11

Hello, An airplane makes a 990 km flight with a tailwind & returns, flying into the same wind. The total flying time is 3 hrs 20 mins & the airplanes speed in still air is 600 km/hr what is the the speed of the wind? I'm as far as

asked by Kayla on April 5, 2018
87. ## English

Claire: As you all know, almost everything can be delivered in Seoul, and I love that! Even hamburgers can be delivered here. Fangjin: And the speed of delivery is unbelievable. Last night, I ordered fried chicken, and it was delivered in less than 30

asked by rfvv on June 12, 2014
88. ## physics

A ball is thrown from the top of a building upward at an angle of 66 ◦ to the horizontal and with an initial speed of 16 m/s. The ball is thrown at a height of 53 m above the ground and hits the ground 33.2074 m from the base of the building. The

asked by Anonymous on November 8, 2009
89. ## math

the problem is to use the information given to figure our who will win the third round of tugofwar. round 1 on one side are four acrobats, each of equal strength. on the other side are five neighborhood grandmas, each of equal strength. the result is dead

asked by nik on August 21, 2008
90. ## physics

Your niece is working on a unique science fair project - a clock built around a small mass vibrating on a little spring. Her prototype version is working ok, but it's running too slow. Given your experience in this course, you suggest to her that a stiffer

asked by Student in Need on March 9, 2011
91. ## physics

A former amusement park attraction consisted of a huge vertical cylinder rotating rapidly around its axis. The rotation speed should be sufficient for the people found inside to be stuck to the wall when the floor was removed. what should be the minimum

asked by Greg on December 9, 2011
92. ## physics

You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. A friend throws you a 0.405 kg ball that is traveling horizontally at 11.5 m/s . Your mass is 71.5 kg .

93. ## Physics

When a high-speed passenger train traveling at 161 km/h rounds a bend,the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance(D)= 676m ahead.The locomotive is moving at 29.0 km/h.The engineer

asked by Mapherson on February 19, 2019
94. ## algebra

Hong goes running Monday, Wednesday, and Friday of each week. Each Monday he runs miles, each Wednesday he runs miles, and each Friday he runs miles. How many total miles does he run in weeks?

asked by mimi on February 11, 2012
95. ## Dover

a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due

asked by Shoun on April 13, 2016
96. ## physics

Two 21.0 kg ice sleds are placed a short distance apart, one directly behind the other, as shown in the figure. A 3.42 kg cat, initially standing on sled 1, jumps across to sled 2 and then jumps back to sled 1. Both jumps are made at a horizontal speed of

asked by anonymus on August 30, 2018
97. ## mlit

a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due

asked by lizzy on January 5, 2013
98. ## physics

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 12.6 m/s. The cliff is 49.1 m above a flat horizontal beach as shown in the figure. a.How long after being released does the stone strike the beach below

asked by Help plz on January 24, 2016
99. ## Physics

At the airport they have people movers (horizontal escalators). Your friend decides to use the people mover and since you've been sitting decide to walk along side. You would like to continue your conversation and thus need to continue moving at the same

asked by Kelsey on September 16, 2013
100. ## Physics

A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 20.0 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 83.9 m), the block swings

asked by Thien on October 6, 2012