which of the following forms of light can be observed with telescopes at sea level? select all that apply. view available hint(s)for part a which of the following forms of light can be observed with telescopes at sea level?select all that apply. x rays ultraviolet light visible light infrared light radio waves

Answer:

D. Registered dietitian

Answer:

D

Explanation:

Wind speeds of above 56 kilometers per hour (35 miles per hour) are common during blizzards. These winds reduce visibility by causing a lot of snow to blow around in the air and close to the ground.

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Answer:

B. heterogenous mixture

Explanation:

The substance that can be separated by physical means include heterogenous mixtures, where the components forms separate faces. They can be easily separated using methods based on their physical properties.

Mixtures are combination of two or more individual components mixed physically or through chemical bonds. There are both homogenous and heterogenous mixtures.

In homogenous mixtures all the components are forms a single phase and appear to be one system. For example, salt solution, sugar solution etc. are homogenous mixtures.

In heterogenous mixtures, the components forms different phases which appears to be separated components. They are just physically mixture components and can be easily separated using physical methods.

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Answer:

b

Explanation:

Answer:

a measure of the amount of information on a storage medium

Density= mass

                volume

it symbol is roh

Explanation:

To find density

we need the mass and volume we have to devide both of the

To form cloud droplets in the sky, water vapour molecules must have a surface on which to adhere, a nucleus.

What is Cloud? Cloud is a combination of tiny water droplets or ice crystals that float in the air. Clouds are one of the sky's most beautiful and fascinating features. They come in a variety of forms, including white wispy cirrus clouds to big grey thunderclouds. These vapour droplets are very tiny, about 10 microns in diameter, and can be seen only when they reflect light. What is a nucleus? A nucleus is a tiny particle that serves as a foundation or centre around which other particles aggregate. Aerosols, like dust or salt, are frequently used as nuclei for cloud droplets to develop. It's also worth noting that a surface has to be stable to allow water droplets to form. A dust particle, for example, could be an excellent nucleus for water droplets to develop because it has a stable surface.

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Answer:

Heat flows from the reactor to the water

Explanation:

Good luck! :)

Answer:

The correct option is;

c. 12.8 cm

Explanation:

The given parameters are;

The length of each spring = 12 m  = 0.12 m

Given that the masses and the springs are vertically oriented, we have;

The mass on the first spring = 3 × 6.4 = 19.2 kg

The weight on the first spring = 19.2 kg × 9.81 m/s² = 188.352 N

The extension of the first spring = 188.352 N/7,800 N/m ≈ 0.02415 m

The mass on the second spring = 2 × 6.4 = 12.8 kg

The weight on the second spring = 12.8 kg × 9.81 m/s² = 125.568 N

The extension of the second spring = 125.568 N/7,800 N/m ≈ 0.016098 m

The mass on the third spring = 1 × 6.4 = 6.4 kg

The weight on the third spring = 6.4 kg × 9.81 m/s² = 62.784 N

The extension of the third (bottom) spring = 62.784 N/7,800 N/m ≈ 0.00805 m

The total length of the bottom spring = Original length of the bottom spring + Extension of the bottom spring

The total length of the bottom spring ≈ 0.12 m + 0.00805 m = 0.12805 m

The total length of the bottom spring ≈ 0.12805 m ≈ 12.81 cm

The bottom spring will be approximately 12.81 cm long.

R = resistivity × (l/A), A = πr^2= πd^2/4

2 =( 4.9 × 10^ -4) * (l/π0.7^2/4)

make l the subject and calculate.

i assumed we are looking for the length if the wire.

The correct option is D)A light wave travels through the vacuum of space.

Light waves don't require a medium for their propagation. It can travel through a vacuum such as the empty parts of external space. But unlike sound waves or water waves, it does not need any matter or material to carry its energy along its transmission. Hence, it is a non-mechanical wave.

Light contains packets of energy and transfers via electromagnetic waves. Unlike mechanical waves, which require matter and medium, electromagnetic waves can travel through empty spaces and liquids, solids, and gases. Another familiar wave as light is a sound wave which is a mechanical wave as it requires the mode of transmission.

Therefore light is an electromagnetic wave.

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1) Note that the Roof is dark colored. Given the laws of physics, it will absorb all light.

2) the window is transparent, hence, it will transmit ALL light.

3) the door is dark-colored but has some glass on it. Thus, it will absorb MOST but not all light.

4) the side of the building which is painted white will reflect all light.

Note that dark surfaces absorb light because they are able to absorb photons, or particles of light, and convert them into other forms of energy.

This is because the atoms and molecules in dark surfaces have a large number of unpaired electrons that are able to absorb the energy of photons and transition to a higher energy state.

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Answer:

λ = 2.4 m

Explanation:

The speed of a wave is defined as the product of the frequency and the wavelength of that wave:

\(v = f\lambda\)

where,

v = speed of wave = 24 m/s

f = frequency of wave = 10 Hz

λ = wavelength of the wave = ?

Therefore,

\(24\ m/s = (10\ Hz)\lambda\\\\\lambda = \frac{24\ m/s}{10\ Hz}\)

λ = 2.4 m

Answer:

v = 17.68 m/s

Explanation:

Given that,

While standing at a crosswalk, you hear a frequency of 510 Hz from an approaching police car.

After the police car passes, its frequency is 460Hz.

We need to find the speed of the police car.

The formula is as follows :

\(v=\dfrac{v_o(f-f')}{f+f'}\)

Put all the values,

\(v=\dfrac{343(510-460)}{510+460}\\\\=17.68\ m/s\)

So, the speed of the police car is 17.68 m/s.

Answer:

hello the diagram related to this question is missing attached below is the missing diagram

Answer :

The magnitude of the electric field = 4KQ / L^2

direction = 45° east to south

Explanation:

The magnitude of the electric field = 4KQ / L^2

direction = 45° east to south

The Second Law of Thermodynamics states that the total entropy of an isolated system can only increase over time.

Thermodynamics is the branch of physics that deals with the relationships between heat, work, temperature and energy. It is the study of how energy is converted from one form to another and how it is used to do work. Thermodynamics is concerned with the transfer of energy from one object or system to another and how that energy can be transformed or converted into different forms. It also explores the relationships between entropy, temperature, and energy. Thermodynamics can also be used to predict how systems will behave when exposed to a given amount of energy. Thermodynamics is a powerful tool used to understand the behavior of natural systems and to develop efficient technologies.

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the correct answer to the question is d. driver position does not affect vehicle weight transfer when steering.

The vehicle weight transfer that occurs when the driver moves the steering wheel is affected by brake application, rate of acceleration, and steering input. However, the driver position does not have a direct impact on the weight transfer. Brake application and rate of acceleration affect weight transfer by causing weight to shift towards the front or back of the vehicle, while steering input affects weight transfer by causing weight to shift towards the outside or inside of the turn. The driver's position, on the other hand, does not directly impact weight transfer but can indirectly affect it through changes in the driver's body position and weight distribution.

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Answer:

There are basically three factors that influence the numbers of moons each planet has, and those are the following:

The size (mass) of the planet – ability to capture objects.

Collision – just like our Moon formed.

Co-formation – formed at the same time as the planet

The average velocity is given by

Where d is the distance covered and t is the time taken.

For the given case, we have

d = 75 m

t = 8.9 s

Therefore, the average speed of the hockey player is 8.43 m/s

The hockey player is moving at a speed of 9.5 m/s.

Answer:

Quick, Efficient, Reliable, Safe and Continous

Answer:

Five advantages of electricity are :Advantages

It is transportable over long distances

It is silent

It can be used produce magnetic fields, which can be used to propel motors

It is very transformable

It is very fast, virtually the speed of light

It can be used to produce other forms of radiant energy, such as radio waves, microwaves, radiant heat and light

Tires aren't made from pure rubber because it makes the weight higher which increases the engine load.

This is defined as a piece of rubber which is attached to the wheels of automobiles for movement.

Pure rubber isn't used to make tyres because it has a higher weight which increases the engine load thereby making the vehicle slower.

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The crystal structure for a material where slip occurs on a (110) plane in a close-packed direction is A. FCC (Face-Centered Cubic).

In a face-centered cubic (FCC) crystal structure, the atoms are arranged in a closely packed manner. The (110) plane in an FCC structure corresponds to a plane containing the atoms at the corners of a cube, as well as the atoms in the center of each face.

Slip refers to the movement of dislocations within a crystal lattice, and the (110) plane is a common slip plane in FCC materials.

In an FCC crystal structure, slip occurs along close-packed directions, which are the directions where the atoms are closely packed together. These close-packed directions intersect the (110) plane, allowing for the movement of dislocations and deformation of the material. Examples of materials with an FCC crystal structure include aluminum, copper, gold, and silver.

In summary, the crystal structure for a material where slip occurs on a (110) plane in a close-packed direction is FCC (Face-Centered Cubic).

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About 400.00 Meters per second.

(Think i may have gotten my decimal in the wrong place. If not then 4)

Answer:

14.40 km/h (kilometers per hour)

240.00 m/min (meters per minute)

Best answer: 4.00 m/s (meters per second)

Explanation:

Answer:

It is because gasses, liquids, and plasma are always changing shape they are named and classified as ‘fluid’.

A worker can stack up to 5 of the 2 kg bricks on the overhanging end of the board without it flipping over.

To determine how many 2 kg bricks can be stacked on the overhanging end of the plank without it flipping over, we need to consider the torque and balance of the system.

The torque is the product of the force applied and the distance from the pivot point (in this case, the edge of the platform). The system will be balanced if the sum of the torques on each side is zero.

Let's calculate the torques:

Torque due to the plank:

Torque_plank = weight_plank * distance_plank

= (20 kg * 9.8 m/s^2) * (0.5 m)

= 98 N * 0.5 m

= 49 Nm

Now, let's consider the torque due to the bricks:

Each 2 kg brick will exert a weight force of (2 kg * 9.8 m/s^2) = 19.6 N.

Since the bricks will be stacked at the end of the overhanging part, the distance from the pivot point is 0.5 m.

Let's assume we can stack "n" bricks without the plank flipping over. The torque due to the bricks will be:

Torque_bricks = weight_brick * distance_brick * n

= (19.6 N * 0.5 m) * n

= 9.8 Nm * n

For the system to be balanced and not flip over, the sum of the torques on each side should be zero. Therefore:

Torque_plank = Torque_bricks

49 Nm = 9.8 Nm * n

Solving for "n" (the number of bricks):

n = 49 Nm / (9.8 Nm)

n = 5

Therefore, a worker can stack up to 5 of the 2 kg bricks on the overhanging end of the board without it flipping over.

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Answer:

The copper wire (resistance 0.1 Ω )

Explanation:

In a parallel connection, the same voltage is maintained across all the resistors but the current varies.

The larger the magnitude of the resistance, the smaller the current flowing in the circuit and the smaller the heat dissipated by the resistor.

Hence the copper wire dissipates the greatest heat.

Based on the information, B. The temperature is not rising because the heat is being used to break the connections between the molecules.

The average kinetic energy of its molecules directly relates to the temperature of a material, not the potency of the intermolecular bonds between them.

By heating up a substance, it causes the kinetic energy of its molecules to grow, which makes them vibrate and move what much faster than before. Though this increased motion can disrupt said intermolecular bonds, it does not take heat energy from them in order to destroy them. Instead, that heat energy is taken in by the particles, transforming it into kinetic energy.

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The majority of our information about the rest of the universe comes from astronomical observations made by ground-based and space-based telescopes, as well as data collected from space missions and experiments.

These sources provide us with valuable insights into the composition, structure, and behavior of celestial objects. Astronomers gather information about the universe through various methods and instruments. Ground-based telescopes, such as optical telescopes, radio telescopes, and infrared telescopes, observe different wavelengths of light to study stars, galaxies, and other celestial objects. These telescopes capture electromagnetic radiation emitted or reflected by objects in space, allowing scientists to analyze their properties and gather data. Additionally, space-based telescopes like the Hubble Space Telescope, the Chandra X-ray Observatory, and the Spitzer Space Telescope provide a clearer view of the universe by avoiding the distortions and limitations of Earth's atmosphere. These telescopes have greatly expanded our understanding of the universe and have captured breathtaking images of distant galaxies, supernovae, and other astronomical phenomena.

In addition to telescopic observations, scientists rely on data collected from space missions and experiments. Probes and satellites equipped with specialized instruments are sent to different parts of the solar system and beyond, providing us with direct measurements and data about celestial bodies. For example, missions like NASA's Voyager probes, the Mars rovers, and the European Space Agency's Rosetta mission have greatly contributed to our knowledge of the planets, moons, and comets within our solar system. Similarly, missions like the Kepler Space Telescope and the recently launched James Webb Space Telescope focus on detecting exoplanets and studying their atmospheres, potentially uncovering signs of habitability or even life beyond Earth. Overall, a combination of telescopic observations and data from space missions allows us to gather the majority of our information about the rest of the universe.

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