In the system shown above, the pulley is a uniform disk with a mass of .75 kg and a radius of 6.5 cm. The coefficient of friction between the 5.8 kg mass and the horizontal surface is .25, and the ropes does not slip on the pulley. They system is released from rest. Use work-energy principles to determine the kinetic energy of the (a) 2.8 kg mass and (b) the pulley after the 5.8 kg mass has moved 2.2 meters.

Answer:

Ok, first is important that you understand how the heat radiation works.

All the objects that have some heat energy in them, radiate some of that energy in the form of electromagnetic waves.

Particularly, the Sun radiates a lot of energy (at the point that if you step under the sunlight, you can feel on your skin the heat that comes from the sun, this is due to radiation).

Now, suppose that you have a thin coat of water over you, then the material that gets impacted by that radiation will be the water and not you, and then the energy is dissipated (some of the energy goes to your body and some go to the air)

This is one way in which spraying water over themselves helps the elephants to keep them cool.

Another way in which heat can be transferred is by conduction.

When you have a hot object and a cool object, and you put them together (so the objects touch each other), the heat will flow from the hotter object to the cooler object until both objects have the same temperature.

Then if the elephant body temperature is larger than the temperature of the water that the elephant sprays over his body, when the water touches the body some of the heat in the elephant body will be transferred to the coat of water, and in this way, the temperature of the elephant's body decreases.

These are the two ways we wanted to find.

Answer:

I think it's D

Explanation:

because kinetic basically means moving and potential mean sitting still so ig it's c or D

Answer:

Explanation:Concave mirror​s can make a real image.when the object is away from the mirror it is called real image and when the object is closer to the mirror it is called virtual mirror.

Answer:

0.6Nm

Explanation

Given

Force = 3N

Distance = 20cm = 0.2m

Moment = Force * perpendicular distance

Substitute

Moment = 3N  * 0.2

Moment = 0.6Nm

Hence her moment is 0.6Nm

Answer:

Could you explain that more better?

Explanation:

Answer:

B

Explanation:

Answer:

answer=1.97×10^8

Explanation:

will u mark me brainliest?

Green light (520 nm) enters glass with n = 1.52, the wavelength of light that enters the glass is 520 nm.

To find the wavelength of light that enters the glass, we can use Snell's Law, which relates the angles and indices of refraction for light passing through a boundary between two mediums:

n₁ × sin(θ₁) = n₂ × sin(θ₂)

In this scenario, we can assume that the angle of incidence is zero degrees (the light is entering the glass perpendicular to the surface). Therefore, sin(θ₁) becomes sin(0) which is 0.

Using Snell's Law, we have:

n₁ × sin(θ₁) = n₂ × sin(θ₂)

1 × 0 = 1.52 × sin(θ₂)

The wavelength of light that enters the glass remains the same as the initial wavelength in air, which is 520 nm (nanometers).

Thus, the wavelength of light that enters the glass is 520 nm.

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Answer:

In sea-floor spreading, the sea floor spreads apart along both sides of a mid-ocean ridge as new crst is added. As a result, the ocean floors move like conveyor belts, carrying the continents along with them.

Explanation:

Answer:

You would get spagettified. Streched into a very long noodle version of yourself.

Answer:

both hit qaulity

Explanation:

Newton's Third Law says that every interaction involves two forces - in this case (1) hammer pushes nail, and (2) nail pushes hammer. When a hammer hits a nail, Newton's Third Law says that the force that the hammer exerts on the nail is exactly the same size as the force the nail exerts on the hammer.

Answer:Electricity works by getting a bunch of conductor elements together and creating a flow of electron-stealing patterns through them. This flow is called a current. ... Once you can control the direction the electrons are going, you can use them to power or charge anything from a light bulb to your TV to your electric car.

Explanation:trust

Answer:

Average Density = 1.07 g/cm³

Explanation:

The average density of the whole mixture is given by the following formula:

[tex]Average\ Density = \frac{mass\ of\ whole\ mixture}{volume\ of\ whole\ mixture}[/tex]

where,

volume of whole mixture = volume of water + volume of acid

volume of whole mixture = 100 cm³ + 50 cm³ = 150cm³

mass of whole mixture = mass of water + mass of acid

mass of whole mixture = (volume of water)(density of water) + (volume of acid)(density of acid)

mass of whole mixture = (100 cm³)(1 g/cm³) + (50 cm³)(1.2 g/cm³)

mass of whole mixture = 160 g

Therefore,

[tex]Average\ Density = \frac{160\ g}{150\ cm^3}[/tex]

Average Density = 1.07 g/cm³

Answer:

"An earthquake radiates P and S waves in all directions and the interaction of the P and S waves with Earth's surface and shallow structure produces surface waves. Near an earthquake the shaking is large and dominated by shear-waves and short-period surface waves."  please rephrase this in your own words.

Explanation:

Im not sure if this helps but credits to: eqseis.geosc.psu.edu › Notes › waves_and_interior

Explanation:

full moon

Answer:

1. La cantidad de materia que hay en el Universo es 3,53x10⁵⁴ kg.

2. Se necesitan 1,8x10²⁴ masas solares para completar la masa total del Universo visible.

Explanation:

1. La cantidad de materia del Universo se puede calcular a través de su volumen (V) y de su densidad (d):

[tex] d = \frac{m_{u}}{V} = \frac{m}{\frac{4}{3}\pi r^{3}} [/tex]

En donde:

r: es el radio = d/2 = 8,8x10²⁶/2 m = 4,4x10²⁶ m

[tex]m_{u}[/tex]: es la masa del Universo =?

d: es la densidad = 9,9x10⁻²⁷ kg/m³      

[tex]m_{u} = d*v = 9,9 \cdot 10^{-27} kg/m^{3}*\frac{4}{3}\pi (4,4 \cdot 10^{26} m)^{3} = 3,53 \cdot 10^{54} kg[/tex]

Entonces, la cantidad de materia que hay en el Universo es 3,53x10⁵⁴ kg.

2. La masa del sol es 2x10³⁰ kg, por lo que para completar la masa total del Universo visible se necesitan las siguientes masas solares:

[tex]N = \frac{m_{u}}{m_{s}} = \frac{3,53 \cdot 10^{54} kg}{2\cdot 10^{30} kg} = 1,8 \cdot 10^{24}[/tex]

Por lo tanto, se necesitan 1,8x10²⁴ masas solares para completar la masa total del Universo visible.

Espero que te sea de utilidad!  

There is direct relationship between harmonics and resonance frequency.

Learn more about harmonic here: https://brainly.com/question/17315536

Learn more: https://brainly.com/question/23262887

Answer:

The answer is "The frequency of the sound waves increases".

Explanation:

Its most oscillating their frequency waves, therefore higher the vibration we hear. However you see, sound frequency is determined through the oscillation of electrical signals while moving to our ears, which implies that perhaps the audio medium, which usually is air, makes a distinction between compression to spreading. It's the end of the communication as the frequency rises.

Explanation:

Energy can be converted from one form to another. Examples: Gasoline (chemical) is put into our cars, and with the help of electrical energy from a battery, provides mechanical (kinetic) energy. ... Similarly, purchased electricity goes into an electric bulb and is converted to visible light and heat energy.

Answer:

Explanation:

Energy transformation is when energy changes from one form to another.  While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation. For example, Electricity goes into an electric bulb and is converted to visible light and heat energy.

Hope this helped!!!

Correct question:

Manny walked a total of 3 miles. The reference point used to calculate the total distance that he walked was the same as the ending point. Which describes where Manny most likely walked?

a. from the bottom of a hill to the top

b. on a circular nature trail

c. on a sidewalk from his house to the mall

d. from the beginning of a straight track to the end

Answer:

b. on a circular nature trail

Explanation:

As it is mentioned that Manny that his reference point from where she started is same as ending point meaning that she moved in a circular path making point B correct answer.

Answer:

on a circular nature trail

Explanation:

Answer:

1299N

Explanation:

GIven data

Weight W= 1500N

Angle Ф= 30°

The applied force up the frictionless ramp is gotten by applying the formula below

F= WcosФ

substitute

F=1500 cos 30

F = 1500*0.8660

F= 1299N

Hence the applied force is 1299N

Answer:

I think the answer is Milky Way

I hope this Will help you

Answer:

D. The tea loses heat to the spoon causing the spoon to become warmer

Explanation:

When the silver spoon at a lower temperature than the tea, is added to the tea, it makes thermal contact. Hence, the heat transfer starts between the two until the equilibrium is reached. We know that the heat transfer takes place from the body with a higher temperature to a body with a lower temperature. As a result, the body with higher temperature loses heat and its temperature lowers down. While the body with a lower temperature gains heat and its temperature rises.

Therefore, the correct option is:

D. The tea loses heat to the spoon causing the spoon to become warmer

Answer:

3rd diagram

Explanation:

From the laws of reflection, we understood that the angle of incidence in equal to the angle of reflection.

For example, if a ray of light strikes a mirror at 60°, it reflected at the same angle (i.e 60°)

Considering the diagram given in the question above,

The ray of light strikes the mirror at 40°. Therefore, the light will be reflected with the same angle (i.e 40°)

Thus, the 3rd diagram gives the correct answer to the question.

Answer:

gamma rays are super compact

Explanation:

as you move up the electromagnetic spectrum the wave lengths get shorter and shorter (higher and higher energy) gammas being the highest on the spectrum

Radio waves pass through us easily every day with no bad effects. Gamma Rays will kill you in large doses. the difference between these two forms of waves are in their energy.

Wave is is a disturbance in a medium that carries energy as well as momentum . wave is characterized by amplitude, wavelength and phase. Amplitude is the greatest distance that the particles are vibrating. especially a sound or radio wave, moves up and down. Amplitude is a measure of loudness of a sound wave. More amplitude means more loud is the sound wave.

Wavelength is the distance between two points on the wave which are in same phase. Phase is the position of a wave at a point at time t on a waveform.

There are two types of the wave longitudinal wave and transverse wave.

The energy of the electromagnetic photon is given by frequency times plank's constant. Hence energy is directly proportional to the requency. The frequency of the radio waves is far smaller than the gamma rays hence it has low energy. this is the difference, which leads gammas rays  injurious to heath.

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Answer:

The size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases. Both objects exert an equal attractive force on each other: a falling object is attracting the Earth with the same size force as the Earth is attracting it

Answer:

A Child has a fast metabolism since it is growing fast it needs Food, Liquids, Sleep.

Explanation:

A father has already Grown and is only gaining age.

So we can Conclude that A child needs more body building food.

the answer is c i think

Answer:

C. Planets in motion will have a constant speed unless acted on by an outside force.

Explanation:

Took the test

Answer:

1. Motion

2. Empty space

3. Far apart

4. Independently

5. Random or rapid

6. Collision

7. Kinetic energy

8. Atmospheric

9. 273 Kelvin or 0° Celsius

10. 1 atm, 101.3 kPa or 760 mmHg

Explanation:

In science, matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.

Generally, matter exists in three (3) distinct or classical phases and these are;

I. Gas.

II. Solid.

III. Liquid.

Filling the missing words or texts in the question, we have;

The kinetic theory describes the motion of particles in matter and the forces of attraction between them. The theory assumes that the volume occupied by a gas is mostly empty space, that the particles of gas are relatively far apart, move independently of each other, and are in constant random or rapid motion. The collision between particles are perfectly elastic so that the total kinetic energy remains constant. Gas pressure results from the simultaneous collisions of billions of particles with an object. Barometers are used to measure atmospheric pressure. Standard conditions are defined as a temperature of 273 Kelvin or 0° Celsius and a pressure of 1 atm, 101.3 kPa or 760 mmHg.