# 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 73
1. ## math

a. running track has a perimeter of 800*1/4meters if a runner takes five round of it how much distance did he cover?

asked by ankit on November 2, 2016
2. ## Social Studies

What dynasty, running from the 15th to 20th centuries, was supported by Pop Gregory having Rudolph I as its first emperor?

asked by Taylor on February 21, 2008
3. ## american history [about presidents]

why were their 3 presidential candidates in the election of 1812.. i think that is the year. Whenever roosevelt was running with taft. please help me out with the answer as to why there were 3 parties..

asked by mark on September 15, 2007
4. ## physics

How far to the nearest meter can a sprinter running at 9 m/s, travel in the time it takes a rock to fall 65 meters?

asked by Maria on August 26, 2012
5. ## Math

The track at Bronwyn's school is 1/4 mile around.If she can do 3 laps in 4 1/2 minutes,how fast is she running in miles per hour

asked by Veany on November 9, 2016
6. ## physics

While running a race, Abigail’s heart was beating at 170 beats per minute. What was the period of her heartbeat?

asked by nor on March 22, 2018
7. ## science

Why do human beings use running shoes,winter boots, skis, or flippers? Why are these not biological adaptations?

asked by Delaney on June 2, 2016
8. ## Math

The track at Bronwyn's school is 1/4 mile around.If she can do 3 laps in 4 1/2 minutes,how fast is she running in miles per hour

asked by Veany on November 9, 2016
9. ## english

compound words -which is correct thirty one -self-evident -QUICKLY-RUNNING -OR SPUR OF THE MOMENT-DECISION

asked by jacob on March 11, 2010
10. ## Vocabulary

The woman's screeches (screech)brought the neighbours running to her place. Please find to check whether is is correct. Thanks & regards.

asked by deyond ng on February 21, 2017
11. ## Georgia Studies

Wow! It's been a while since I've been on this. My question is: Why is a juvi act such as running away from home, as serious as they make it? Like they might detain the juvenile for 24 hours. Why is that? Thanks-MC

asked by mysterychicken on December 5, 2008
12. ## accounting

to what extent a country that runs a consistent balance of payment surplus "better off" than is counterparts running deficit?

asked by Happy on August 17, 2015
13. ## Algebra

Player lost 15 yards, gained 3,then 21 in three successive running plays. What was his total gain and loss

asked by Laura on May 23, 2014
14. ## physics

A longjumper running at 12 m/s and jumps at 20 degrees. No wind or resistance but gravity is normal -9.81 m/s2. How far will person jump?

asked by Jim on October 13, 2010
15. ## Politics

If an individual decides to drop out from running for office (Senate), what happens to the money that was donated and raised for the campaigning? Where does it go?

asked by Nate on February 18, 2010
16. ## Computer

I have a question If a laptop reaches 15% of low battery then how long has it been running? About 3 hours, 2? But wthout the charger

asked by Acasia on April 19, 2017
17. ## Physics

A mass (0.5 kg) and spring (k = 250 N/m) system oscillates with an amplitude of 3.5 cm. a) What is the total mechanical energy of the system? b) What is the maximum speed of the mass? c) What is the maximum acceleration of the mass? I need help please.

asked by Anonymous on December 4, 2016
18. ## university physics

A 32.8 kg child rides a 7.00 kg toboggan down a 12.0 m high snowy hill. If the child starts from rest and has a speed of 7.15 m/s at the bottom of the hill, what is the change in thermal energy of the child on their toboggan and the snow?

asked by Anonymous on November 11, 2018
19. ## physics

Two ice skaters have masses m1 and m2 and are initially stationary. Their skates are identical. They push against one another, as in Figure 7.10, and move in opposite directions with different speeds. While they are pushing against each other, any kinetic

asked by riley on October 15, 2011
20. ## Physics

A person's body is producing energy internally due to metabolic processes. If the body loses more energy than metabolic processes are generating, its temperature will drop. If the drop is severe, it can be life-threatening. Suppose a person is unclothed

asked by Confused on December 7, 2012
21. ## physics

For no apparent reason, a poodle is running counter-clockwise at a constant speed of 3.40 {\rm m/s} in a circle with radius 2.2 {\rm m}. Let \vec v_1 be the velocity vector at time t_1, and let \vec v_2 be the velocity vector at time t_2. Consider \Delta

asked by toshi on November 28, 2011
22. ## physics

A 2 kg mass falls 40 m and buries itself into the ground 0.40 m. Find: a) How much work was done by gravity, b) How much potential energy was lost, and c) What was its speed when it hit the ground, and d) the average force causing the mass to stop once it

asked by Ted on November 28, 2012
23. ## science

sorry to annoy anyone, but WHAT is the big idea of energy? i would really appreiciate a response In what context? Too much use. Not reneewable? Cost? availability? in the context of an ironsulphide reaction I still don't understand the question. explaining

asked by Fiona on April 25, 2007
24. ## Chemistry

a) A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg? b) For potassium metal, the work function W (the minimum energy needed to eject an electron from the metal surface) is 3.68 ×

25. ## Physics

A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in

asked by Julie on March 22, 2016
26. ## physics

A T-bar tow is planned in a new ski area. At any one time, it will be required, to pull a maximum of 80 skiers up a 600-m slope inclined at 15 degrees above the horizontal at a speed of 2.5 m/s. The coefficient of kinetic friction between the skiers skis

asked by bill on March 4, 2010

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. Each compact fluorescent light bulb costs $4 and saves you an average of asked by LIZ on January 28, 2011 28. ## physics A rescue worker pulls an injured skier lying on a toboggan (with a combined mass of 127 kg) across flat snow at a constant speed. A 2.53 m rope is attached to the toboggan at ground level, and the rescuer holds the rope taut at shoulder level. If the asked by kdv on April 9, 2014 29. ## Science Which of the following statements describes the conservation of a natural resource? A. A timber company only cuts some trees down and replaces them with new trees. B. A solar energy company harvests energy from sunlight. C. A timber company cuts down all asked by Pepsi on November 13, 2017 30. ## Science help please Which of the following statements describes the conservation of a natural resource? A. A timber company only cuts some trees down and replaces them with new trees. B. A solor energy company harvests energy from sunlight. C. A timber company cuts down all asked by callie on November 17, 2014 31. ## Physics The spring shown in the figure is compressed 59cm and used to launch a 100 kg physics student. The track is frictionless until it starts up the incline. The student's coefficient of kinetic friction on the 30∘ incline is 0.14 . k= 80,000 N/m m=100 kg uk= asked by Dib on November 8, 2014 32. ## chemistry the retina of a human eye can detect light when radiant energy incident on it is at least 4.0x10^-17 J. For light that is 565 nm wavelength, how many phontons does this energy correspond to? asked by Any on February 1, 2012 33. ## Physics If the price of electrical energy is$0.10 per kilowatt*hour, what is the cost of using electrical energy to heat the water in a swimming pool (12.0m*9.00m*1.5m) from 15 to 27 degrees Celcius?

asked by Heather on February 15, 2011
34. ## Science

I have a project over hydroelectric energy. My partner and I have looked through books and the Internet to find out what other tasks can be performed using this energy, but nothing was clear to what tasks it performs. Please help! Thanks so much, Bella

asked by Bella on October 18, 2011
35. ## Physics/Chemistry

If the price of electrical energy is \$0.10 per kilowatt*hour, what is the cost of using electrical energy to heat the water in a swimming pool (12.0m*9.00m*1.5m) from 15 to 27 degrees Celcius?

asked by Heather on February 15, 2011
36. ## physics

A gas is compressed at a constant pressure of 0.800 atm from 6.00 L to 1.00 L. In the process, 380 J of energy leaves the gas by heat. What is the change in its internal energy?

asked by amela on November 29, 2012
37. ## science

Turn an incandescent lamp on and off quickly while you are standing near it. You feel its thermal energy but find when you touch the bulb that it is not hot. why you felt thermal energy from it.

asked by Ashton on January 30, 2008
38. ## Physics

A fully charged 90-µF capacitor is discharged through a 60-Ω resistor. How long will it take for the capacitor to lose 80% of its initial energy? I know energy is given by E(t)=q(t)^2, but beyond that I really don't know how to solve this. Any

asked by Bruce on October 24, 2012
39. ## physics

Two 0.55 kg basketballs, each with a radius of 15 cm, are just touching. Ignore any other gravitational interactions. (a) How much energy is required to change the separation between the centers of the basketballs to 1.0 m? (b) How much energy is required

asked by Kelly K. on June 11, 2007
40. ## science

What is the function of the turbine in a nuclear reactor? to circulate the water back to the reactor after energy is removed from it to produce electricity to convert the heat energy of the water into mechanical energy to mix the water surrounding the fuel

asked by dianni on December 12, 2018
41. ## physics

A 1 x10^3 kg roller coaster car is initially at the top of a rise, at point A. It then moves 50 m at an angle of 40 degrees below the horizontal to a lower point, B. (a) Choosing point B as the zero level of gravitational potential energy, find the

asked by Anonymous on October 22, 2007
42. ## Calculus

The position (feet traveled) of a car is given by the equation s(t)=(1/4)t^2+1 find the time when the car is going the same speed as its average speed over the interval 0 to 10 seconds t=0 t=2.5 t=5 t=10 Never I think it's either t=5 or t=2.5? The end

asked by Calc help on December 19, 2018
43. ## To: RoseSparkle

Please repost your question using standard spelling and omitting the veiled profanity. Most of us are much too old and well-educated to attempt to translate teenaged IM abbreviations and slang. This site may help you understand energy.

asked by Ms. Sue on February 26, 2008
44. ## Physics

A boy weighing 40kg runs at 8.0m/s grabs a rope and swings of level ground. What maximum height does the child reach? How do I solve this?? it is under the conservation of energy section of work, power and energy. any help would be great! thanks

asked by Steven on March 26, 2008
45. ## Physics Classical Mechanics

A bar of mass m and negligible height is lying horizontally across and perpendicular to a pair of counter rotating rollers as shown in the figure. The rollers are separated by a distance D. There is a coefficient of kinetic friction μk between each roller

asked by Anonymous on December 11, 2013
46. ## physics

a) Does ball B roll faster along the lower part or track a than ball A rolls along track A? (b) Is the speed gained by ball B going down the extra dip the same as the speed it loses going up near ... (c) On track B, won't the average speed dipping down and

asked by Anonymous on August 12, 2010
47. ## physics

a) Does ball B roll faster along the lower part or track a than ball A rolls along track A? (b) Is the speed gained by ball B going down the extra dip the same as the speed it loses going up near ... (c) On track B, won't the average speed dipping down and

asked by Anonymous on August 11, 2010
48. ## Science

A 55.0 kg child slides down from rest from the top of a water slide that is 5.0 m long and inclined 300 with the horizontal. The child reaches the bottom of the slide with a speed of 6.24 m/s. Find his total mechanical energy at the top of the slide.

asked by John Henrey on November 3, 2017
49. ## physics

need help with this question please a 1kg block starts at rest and slides down the incline. the coefficient of friction between the incline and the block is 0.1. The height of the incline is 2m, and the angle is 30 degrees. use energy consideration to find

asked by sammeh on November 15, 2009
50. ## Physics

A student wants to determine the coefficients of static friction and kinetic friction between a box and a plank. She places the box on the plank and gradually raises one end of the plank. When the angle of inclination with the horizontal reaches 30°, the

asked by Mario on October 1, 2009
51. ## PHYSICS

A student wants to determine the coefficients of static friction and kinetic friction between a box and a plank. She places the box on the plank and gradually raises one end of the plank. When the angle of inclination with the horizontal reaches 30°, the

asked by john on December 13, 2008

I have difficulties understanding physical science and I'd really appreciate it if someone would check over the answers of my practice quiz. I have a test coming up and I really don't want to fail it. I marked my answers with a ******. Thank you in

asked by Anya on June 19, 2016
53. ## physics

How can I find kinetic friction (Fk) without mu? I know the normal force which is 201N. The mass of the object is 30kg. This is the full questions of it helps. I just don't understand how to find kinetic friction 1. If a 30kg object experiences a normal

asked by Tina on June 22, 2011
54. ## PHI

4. Reporter: A new campaign finance reform bill being considered by Congress would limit the amount of campaign contributions that political candidates can receive. However, a survey of candidates running for mayor, governor, and senate seats shows that

asked by Susan on December 6, 2010
55. ## biology

Apply the Law of Conservation of Energy to food. Trace the energy from its beginning point, to the point where it was stored or used.

asked by roger on March 1, 2013
56. ## SS

Which of the following is a source of photochemical smog? 1)fossil fuels 2)wind energy 3)biomass fuels 4)nuclear energy I THINK 4

asked by JAMIE on April 20, 2017

An "energy bar" contains 19g of carbohydrates. If the energy bar was his only fuel, how far could a 68kg person walk at 5km/hr ?

asked by Anonymous on December 4, 2012
58. ## Physics

A capacitor has stored energy U. If the voltage and plate separation are both doubled, the new stored energy is ____. Answer 2U a) 2U b) U/2 c) U d)4U

asked by Anonymous on July 6, 2013
59. ## chemistry

can anyone tell me about the molecular orbital energy order in energy level diagrams????its molecular n not atomic..... plz tell me its very urgent!!!!

asked by vishesh on October 12, 2010
60. ## math

the formula for potential energy is p=mgh, where p is potential energy, m is mass, g is gravity, and h is height. what expression can be used to represent g?

asked by derek on May 30, 2008
61. ## high level chemistry

can anyone tell me about the molecular orbital energy order in energy level diagrams????its molecular n not atomic..... plz tell me its very urgent!!!!

asked by vishesh on October 5, 2010
62. ## Chemistry

making 2 moles of No in a reaction requires 180KJ of energy. How much No will be made if this same reaction absorbel 950KJ OF ENERGY

63. ## Electricity

Refrigerators requires a lot of electricity and uses the most electrical energy in most households. Why do refrigerators require so much energy to be operated?

asked by Sasha on April 8, 2014
64. ## Science

Refrigerators requires a lot of electricity and uses the most electrical energy in most households. Why do refrigerators require so much energy to be operated?

asked by Juanita on April 8, 2014
65. ## Physics

A typical photovoltaic cell delivers 4.2×10−3 W of electric energy when illuminated with 0.15 W of light energy. What is the efficiency of the cell?

asked by benjamin on October 12, 2017
66. ## Chemistry

What wavelength of light would be emitted when an electron in a hydrogen atom drops from energy level 5 to energy level 1?

asked by Shayne on November 2, 2010
67. ## a&p

How does ATP supply the cells with the energy they need to work? Outline the general scheme of the ATP energy cycle.

asked by tameka on February 2, 2013
68. ## Chemistry

What is the wavelength of light (in m) emitted by a hydrogen atom when an electron relaxes from the 5 energy level to the 1 energy level?

asked by Sped on October 28, 2017
69. ## Science

In the uranium mass 235,the binding energy was estimated as 3.0×10^-11Joules.Determine the energy released by 1g of uranium.

asked by Olushola on April 14, 2015
70. ## Chemistry

Does fission store or create energy. I think it creates it... can you help me with my math please? If atoms fission, energy is emitted in the process.

asked by Aj on March 3, 2007
71. ## chemistry

What is thermal energy? heat energy

asked by nikcile on March 31, 2007
72. ## science

what is chemical energy and physical energy?

asked by riley on January 8, 2009
73. ## Science

Is all light energy Solar energy?

asked by Anonymous on April 4, 2016
74. ## Biology

A body uses up all of its energy. is there more energy released or less? Why?

asked by Chris on September 17, 2009
75. ## physics

A cannon fires a shell at an angle of 55.0° above the horizontal. The shell has a mass of 17.5 kg, and its initial speed as it leaves the cannon is 289 m/s. The cannon is not anchored to the ground. It is mounted on a base—a large block of wood—which

asked by becca on November 1, 2010
76. ## PHYSICS

A block of mass 0.86 kg is suspended by a string which is wrapped so that it is at a radius of 0.061 m from the center of a pulley. The moment of inertia of the pulley is 4.60×10-3 kg·m2. There is friction as the pulley turns. The block starts from rest,

asked by Emily on October 21, 2012
77. ## physics

Nate is 165 cm tall, 40 cm wide, and weighs 710 N. He needs to walk ten blocks (1000 m) against a 50 km/h head-wind. Nate pushes on the ground with the minimum force that allows him to move slowly forward at a constant speed, and against the drag from the

asked by hilary on January 6, 2010
78. ## Physics

A certain object of mass 0.50 kg moves along the x-axis. Its potential energy is given by U = 3x2 + 8x. Starting at rest, the object is released at the origin. (a) Find the maximum speed attained by the object. (b) Find the position about which it

asked by Ashley on February 24, 2016
79. ## physics

If all the solid waste of 230 million tonnes were burned in waste-to-energy power plants that are 20% efficient, a) how many kilowatt-hours of electrical energy could be produced in a year? Compare this quantity with the total U.S. electrical energy

asked by nicole on November 5, 2013
80. ## physics

If all the solid waste of 230 million tonnes were burned in waste-to-energy power plants that are 20% efficient, a) how many kilowatt-hours of electrical energy could be produced in a year? Compare this quantity with the total U.S. electrical energy

asked by nicole on November 5, 2013
81. ## Physics

A spring is attached to the top of a table. The spring has a spring constant of 500.0 N/m. The spring is initially compressed by 1.50 m by a baseball (0.145 kg). How much energy is present in the system from the compression? After release, what is the

A microphone has an area of 3.0cm^2. It receives during a 6.00s time period a sound energy of 1.0x10-11J. What is the intensity of the sound? b). Using the intensity in the previous question, what is the variation of pressure in the sound wave if the speed

asked by sarah on November 24, 2012
83. ## physics

A child of mass 20.2 kg takes a ride on an irregularly curved slide of height 6.12 m. The child starts from rest at the top. The acceleration of gravity is 9.8 m/s2 . If a frictional force acts on the child, what is the magnitude of the mechanical energy

asked by jay on February 11, 2018
84. ## Physics

An automobile having a mass of 1220 kg is driven into a brick wall in a safety test. The bumper behaves like a spring of constant 2.42 × 106 N/m and compresses 2.99 cm as the car is brought to rest. What was the speed of the car before im- pact, assuming

asked by Emma on January 22, 2016
85. ## Chemistry

A bullet weighing 235 grains is moving at a speed of 2.52 X 10^3 ft/s. Calculate the kinetcic energy of the bullet in joules ahd in calories. One grain equals 0.0648 g. Can someone help me out on this please K. E.= 1/2 mv2 . Convert m to kg Convert ft/sec

asked by Lauren on October 29, 2007
86. ## English

1. Look at the boy and his dog that are walking on the road. 2. This is the very fountain pen that I looked for. 3. Who that has common sense can say like that? 4. No people that are from Korea can have difficulty in speaking Korean. (Are they all

asked by rfvv on February 3, 2010
87. ## english

preview the following titles of novels,which one would you expect to be aboutthe adventures of a sled dog? A.the call of the wild B.sons and lovers C.a passage to india d.the secret agent

asked by Anonymous on February 15, 2013
88. ## Min Pin Refuses to Heel

Saw some1 else had posted a dog training qu. & visited both websites (nothing unfortunately). Does any1 know how i can get my Miniature Pinscher mix to heel on his walks? I've looked at every website i could think of and came up with nothing. Thnx 4 ur

asked by Nat on January 2, 2016
89. ## history

In the movie Lakota Woman- Siege at Wounded Knee; I need to understand what the alienation isues that Mary Crow Dog regarding her family. Do you have any ideas on where I can find this informaton?

asked by Jo on January 8, 2012
90. ## Vocabulary

Though my dog River is huge and fierce looking, children are fond of him because he doesnt have a(n) _______ disposition. barren? interrogate? humdrum? sullen? trickle? truce? vicious?

asked by Kk on September 18, 2014
91. ## human services

In the movie Lakota Woman- Siege at Wounded Knee; I need to understand what the alienation isues that Mary Crow Dog regarding her family. Do you have any ideas on where I can find this informaton?

asked by Jo on January 8, 2012
92. ## literature

we read my sister's keeper and one of the questions from our study guide talks about Campbell's dog, Judge in what ways do dogs introduce ideas about loyalty and instincts?

asked by jenny on August 23, 2009
93. ## statistics

If the mean value of the weight of a particular brand of dog food is 20.6 lb and the standard deviation is 1.3, assume a normal distribution and calculate the amount of product produced that falls below the lower specification value of 19.7 lb.

asked by tonja on February 9, 2012
94. ## Math

The cardinal number of the set {cat, dog, horse, fish, lizard, meerkat, rhinoceros, elephant, giraffe, platypus, hippopotamus, skunk} is ____. I think its 12 right?

asked by Jen on July 29, 2011
95. ## math

A rectangualar grass has a perimeter of a circular track 36metros and exercise has a circumference of 36metro contained the dog will give pedro de Ricardo more area to run

asked by jenifer mendoza on January 14, 2016
96. ## Language Arts

Which sentence contains a predicate noun? A. The walk through the tunnel was eerie. B. I bought Mom a cookbook for her birthday. C. My dog is master of the household. D. The ground is uneven. Is the answer C? Thank you

asked by Callie on January 26, 2015
97. ## English

Which of the following sentences uses a pronoun in the possessive case? a Ask Sarah to pass the chips to me b Check for my signature on the front page c He went to the park to find the dog d The winner of the contest was she A?

asked by BUBBLES on February 3, 2015
98. ## English

Which of the following sentences uses a pronoun in the possessive case? a Ask Sarah to pass the chips to me b Check for my signature on the front page c. He went to the park to find the dog d The winner of the contest was she I have C?

asked by .Vee on February 3, 2015
99. ## Science

Turning on the switch in a flashlight starts a chemical reaction in the batteries. The chemical energy is turned to light energy and the flashlight lights up. Which part of this system us an example of a process? a. Turning on the switch is a process. b.

asked by Anonymous on September 19, 2013
100. ## Science

Turning on the switch in a flashlight starts a chemical reaction in the batteries. The chemical energy is turned to light energy and the flashlight lights up. Which part of this system us an example of a process? a. Turning on the switch is a process. b.

asked by Anonymous on September 19, 2013