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Ratling [72]
3 years ago
10

What is kinetic energy​

Physics
2 answers:
UkoKoshka [18]3 years ago
7 0

Explanation:

A form of energy that an object or a particle has by reason of its motion. kinectic energy is a property of a moving object or particle and depends not only on its motion but also on its mass

Debora [2.8K]3 years ago
4 0

Answer:

Kinetic energy is the movement of objects based on their mass and motion

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Drag each label to the correct location on the chart.
Anarel [89]

Answer:

Land: Lower specific heat capacity,

heats up faster, cools down faster.

Water: Higher specific heat capacity,

heats up slower, cools down

slower.

Explanation:

Specific heat capacity is the amount of heat energy required to raise the temperature of a substance per unit of mass.

For simplicity, specific heat capacity of water is 4000 J/kg°C. It means you need 4000 Joules of energy to raise a kilogram of water by 1 degree Celsius.

For simplicity, specific heat capacity of land is 1000 J/kg°C. It means you need 1000 Joules of energy to raise a kilogram of land by 1 degree Celsius.

Now, let's add 4000 Joules of energy each to a kilogram of water and land.

Water's temperature increases by 1 degree Celsius and land's temperature increases by 4 degree Celsius.

From here you can see that for same amount of energy, water heats up slower and land heats up faster.

Now, let's remove 4000 Joules of energy each from a kilogram of water and land.

Water's temperature decreases by 1 degree Celsius and land's temperature decreases by 4 degree Celsius.

From here you can see that for same amount of energy, water cools down slower and land cools down faster.

4 0
3 years ago
You are hungry and decide to go to your favorite neighborhood fast-food restaurant. You leave your apartment and take the elevat
Viktor [21]

Answer:

A)  R = (200 i ^ + 100 j ^ + 30k ^) m , B)    L = 223.61 m , C)   R = 225.61 m

Explanation:

Part A

This is a vector summing exercise, let's take a Reference System where the z axis corresponds to the height (flights), the x axis is the East - West and the y axis corresponds to the North - South.

Let's write the displacements

Descending from the apartment

10 flights of 3 m each, the total descent is 30 m

                Z = 30 k ^ m

Offset at street level

            L1 = 0.2 i ^ km

            L2 = 0.1 j ^ km

Let's reduce everything to the SI system

          L1 = 0.2 * 1000 = 200 i ^ m

          L2 = 100 j ^ m

The distance traveled is

          R = (200 i ^ + 100 j ^ + 30k ^) m

Part B

The horizontal distance traveled can be found with the Pythagorean theorem for the coordinates in the plane

                L² = x² + y²

                L = √ (200² + 100²)

                L = 223.61 m

Part C

The magnitude of travel, let's use the Pythagorean theorem for the sum

             R² = x² + y² + z²

              R = √ (30² + 200² + 100²)

             R = 225.61 m

7 0
3 years ago
Explain what the Nebular Hypothesis states
inn [45]
Its the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System.
5 0
4 years ago
Calculate the speed of a bus that travels a distance of 55 miles in 0.75 hours.
Sonja [21]
Speed = distance / time = 55 / 0.75 = 73.3 miles per hour.
4 0
4 years ago
How are electromagnetic waves different from sound or water waves?
Annette [7]

Explanation:

Electromagnetic waves are different from sound or water waves in such a way that water and sound waves are called mechanical waves that requires a material medium for their propagation.

Electromagnetic waves do no require a material medium for propagation.

  • Electromagnetic waves are carried or transported by radiation and this can be passed through vacuums and different other materials.
  • But mechanical waves such as water and sound waves requires a material medium for their propagation.
  • They cannot pass through a vacuum.
8 0
3 years ago
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