1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexandra [31]
3 years ago
15

A dog running at a speed of 12 m/s has 1,080 J of kinetic energy. What is the mass of the dog

Physics
1 answer:
Gnom [1K]3 years ago
5 0

Answer:

The mass of the dog is 15 kg

Explanation:

We use the formula for the kinetic energy of the dog:

KE=\frac{1}{2} m\,v^2

Then, in our case:

KE=\frac{1}{2} m\,v^2\\1080 \,=\,\frac{1}{2} m\,(12)^2\\m = \frac{2*1080}{144} \\m=15 \,\,kg

You might be interested in
The highest waterfall in the world is the Salto Angel in Venezuela. Its longest single falls has a height of 807 m. If water at
valentina_108 [34]

Answer:

Temperature at the bottom will be 19.18°C

Explanation:

We have given height h = 807 m

Temperature at the top =17.3^{\circ}C

Specific heat of water c = 4200 J/kg/^{\circ}C

From energy conservation

Kinetic energy at the bottom = potential energy at the top

So mc\Delta T=mgh

\Delta T=\frac{gh}{c}=\frac{9.8\times 807}{4200}=1.88^{\circ}C

So temperature at the bottom = 17.3+1.88 = 19.18°C

   

5 0
3 years ago
(Please explain why) A bar magnet is dipolar. This means is has ____ poles.
earnstyle [38]
Di = two, just like 'bi'. --take di-zygotic twins, or di-atomic + di-sulphide, etc.
5 0
3 years ago
Read 2 more answers
if the Horse and Rider have a combined mass of 572 kg what force would be required to accelerate them 5 kph per second
Vlad [161]

Answer:

   Force required to accelerate = 794.44 N

Explanation:

 Force required = Mass of horse x Acceleration of horse

 Mass of horse and rider, m=   572 kg

 Acceleration of horse and rider, a = 5 kph per second

                                      =\frac{5*1000}{60*60} =1.39 m/s^2

  Force required = ma

                             = 572 x 1.39 = 794.44 N

  Force required to accelerate = 794.44 N

8 0
3 years ago
If the world was not tilted, what would happen to the people living on Earth
Lerok [7]

Answer:

Image result for If the world was not tilted, what would happen to the people living on Earth

If the Earth weren't tilted on its axis, there would be no seasons. And humanity would suffer. When a Mars-size object collided with Earth 4.5 billion years ago, it knocked off a chunk that would become the moon. It also tilted Earth sideways a bit, so that our planet now orbits the sun on a slant

Explanation: i looked up the answer

8 0
3 years ago
Read 2 more answers
What is the unit of work in SI system?
Citrus2011 [14]

Answer:

Joule ;)

Explanation:

In the case of work (and also energy), the standard metric unit is the Joule (abbreviated J). One Joule is equivalent to one Newton of force causing a displacement of one meter. In other words, The Joule is the unit of work.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • What two things are needed to create an emission nebula? A) interstellar gas and dust B) hydrogen fusion and helium ionization C
    12·1 answer
  • When lost fluid is not replaced adequately can result
    9·1 answer
  • What is the accleration of a car that travels 10 meters in 2seconds
    12·1 answer
  • Since illness can be caused by bacteria that live in water, pollution in water can lead to serious illness. true or false
    8·1 answer
  • What types of areas are more prone to floods?
    11·1 answer
  • Is the center of each galaxy a black hole containing new galaxy?
    13·1 answer
  • Need help on these questions
    8·1 answer
  • PLEASE HELP What is it called when the moon passes through the penumbra of Earth’s shadow?(1 point)
    8·1 answer
  • How will you separate mixture of metal and nonmetal objects​
    15·1 answer
  • (0.50kg)(6.0mls)+(1.00kg)(-12.00mls)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!