If the spectrum of a star is blue shifted, which way is the star moving?

The headlights of a typical truck are powered by a 12 V battery, then the current they draw if the resistance is 4.8 ohms would be 2.5 Ampere.

Resistance is the obstruction of electrons in an electrically conducting material.

V=IR

As given in the problem, the headlights of a typical truck are powered by a 12 V battery, the find out the current drawn if the resistance is 4.8 ohms.

By using Ohm's Law,

The voltage of the battery = 12 volt

The resistance of the resistor = 4.8 Ohm

V = I × R

12 = I × 4.8

I = 12 / 4.8

I = 2.5 Ampere

Thus, If the headlights of a typical truck are powered by a 12 V battery, then the current they draw if the resistance is 4.8 ohms would be 2.5 Ampere.

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Answer:

TRUE

Explanation:

got it right on edge 2022.

The statement Without the skeletal system, the body could not fight off infection is false.

The skeletal system provides support, protection, and movement for the body, and it also plays a role in the production of blood cells through bone marrow. However, the primary function of fighting off infections is carried out by the immune system, which includes the lymphatic system, the spleen, the thymus, and bone marrow, among other components. While bone marrow is part of the skeletal system and is crucial for producing immune cells, the skeletal system itself is not the sole or primary defense against infection. Therefore, the statement is incorrect because it overstates the role of the skeletal system in immune function. The immune system, not the skeletal system, is specialized to fight off infections

Answer:

volcano

Explanation:

the ash and stuff pollutes the air

Answer:

All colors are absorbed by the object except blue color.

Explanation:

When a white beam of light any object the light beam gets dispersed in its constituent colors. The object reflect a single color and absorb all remaining colors. So the object appears of the color which is reflected by object.

When the light beam strikes the blue object it gets dispersed in its constituent colors. All the colors are absorbed by the object except blue color. Blue color is reflected by the object.

Thus, the object appears of blue color.

To strengthen an electric motor, increase the number of coils, enhance the magnetic field's strength, and optimize the commutation process.

To make an electric motor stronger, several changes can be implemented. Increasing the number of coils in the motor will increase the torque, as the magnetic force exerted on each coil contributes to the overall twisting force on the motor's shaft. Enhancing the strength of the magnetic field within the motor, either by using stronger magnets or by increasing the current that produces the magnetic field, can also lead to a more powerful motor. Finally, ensuring the efficiency of the commutation process - the timing of the current's reversal to maintain continuous torque - is also crucial for motor strength. Factors such as the precise adjustment of commutators and brushes can minimize energy loss and improve performance.

Charles's law formula describes a direct relationship between the volume and absolute temperature of a gas at constant pressure. The formula is V1/T1 = V2/T2. It explains why gas contracts or expands with temperature changes.

The formula for Charles's law describes a direct relationship between the volume and absolute temperature (measured in Kelvin) of an ideal gas, provided the pressure remains constant. The formula is V1/T1 = V2/T2 where V1 and V2 are the initial and final volumes and T1 and T2 are the initial and final temperatures.

For example, if you have a gas in a balloon at room temperature (say, 300 Kelvin), and the balloon is inflated to a certain volume, if you then cool the gas to half the initial temperature (150 Kelvin), the volume of the gas (balloon) will also contract to half of its initial volume. This is the principle of Charles's law, showing a direct temperature-volume relationship in gases.

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Charles's Law is represented by the formula V₁/T₁ = V₂/T₂, which shows the relationship between the volume and temperature of a gas at constant pressure.

Charles's Law describes the relationship between the volume and temperature of a gas at constant pressure. According to this law, the volume of a gas is directly proportional to its temperature when pressure remains constant. When represented as mathematical formula the Charles's Law is:

V₁/T₁ = V₂/T₂

Here, V₁ and T₁ represent the initial volume and temperature of the gas, while V₂ and T₂ represent the final volume and temperature of the gas.

Complete Question

Which of the following formulas best describes Charles's law? V₁/T₁ = V₂/T₂ ,  P₁V₁ = P₂V₂ , P₁V₁/P₂V₂ , P₁/T₁ = P₂/T₂

Answer:

Yes, It is contaminated and radio active

Explanation:

The coolant in the primary loop is actually in contact with the reactor fuel. So it will have some trace amount of the reactor fuel and all the other radioactive by products like cobalt.

Also the neutrons in the reactor will convert the hydrogen in the water into radioactive tritium. and the oxygen into radioactive nitrogen.

This is why the primary loop water is kept isolated from the feed water.

Gay-Lussac's law states that the pressure of a given amount of gas is directly proportional to its temperature on the Kelvin scale, provided the volume is constant. This was initially discovered by Guillaume Amontons and later refined by Joseph Louis Gay-Lussac. The mathematical representation is P proportional to T, P = constant × T or P = kx T.

The best description of Gay-Lussac's law is that it states that the pressure of a given amount of gas is directly proportional to its temperature on the Kelvin scale when the volume is held constant. Guillaume Amontons was the first to empirically establish this relationship between pressure and temperature of a gas around 1700, and Joseph Louis Gay-Lussac defined the relationship more accurately around 1800. This relationship is expressed mathematically as PxT or P = constant × T or P = kx T.

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B and C are right for apex!!

Answer:negative work

Explanation:

This is right

Answer:

The air is a homogeneous mixture of gases that make up the Earth's atmosphere, which remain around the planet by the attraction force of gravity.  

Its properties changes with the altitude, the pressure, the temperature and the density. For example, there is a relation that is inversely proportional between the temperature and the air density.  

Therefore, the air in a cool region of the atmosphere will be denser than the air in a hot region of the atmosphere.

In other words:

The impulse exerted on the large object will be [tex]J=11\ kg\frac{m}{s}[/tex]

1) The change in the momentum of the small object is given by the difference between its final momentum and its initial momentum:

[tex]\Delta p=(p_f-p_i)[/tex]

where  [tex]p_f\ \ p_i[/tex]  are the final and initial momentum of the small object. Substituting the numbers of the problem, we find

[tex]\Delta p=-5-6=-11\ \frac{kgm}{s}[/tex]

where we put a negative sign in front of pf because the direction of the object after the collision is opposed to its initial direction.

2) The impulse is equal to the product between the force applied to an object and the time interval:

[tex]J=F\times \Delta t[/tex] (1)

since the force is the product between the mass and the acceration: F=ma, and the acceleration is equal to the change in velocity divided by the time, we can rewrite (1) as

[tex]J=F\times \Delta t=ma\Delta t=mv\frac{\Delta t}{\Delta t}=mv=\Delta p[/tex]

So, the impulse is equal to the variation of momentum. Therefore, the impulse exerted on the small object is

[tex]J=\Delta p=-11\ \frac{kgm}{s}[/tex]

3) We have to find the final momentum of the large object. Initially, its momentum is zero, because it is at rest. Using the law of conservation of momentum,

[tex]p_i+0=p_f+P_f[/tex]

where  are the final and initial momentum of the small object, while  is the final momentum of the large object. By substituting the numbers we had before:

[tex]P_f=p_i-p_f=6-(-5)=11\ \frac{kgm}{s}[/tex]

So, the impulse exerted on the large object is equal to its variation of momentum:

[tex]\Delta p=P_f-p_i=11-0=11\ \frac{kgm}{s}[/tex]

Hence the impulse exerted on the large object will be [tex]J=11\ kg\frac{m}{s}[/tex]

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Answer:

Responses may vary but should include some or all of the following information:   Sternberg’s theory of intelligence includes analytical, practical, and creative intelligence. Analytical intelligence is the type of intelligence used to problem solve. It involves abstract reasoning ability and evaluation skills. Practical intelligence is the type of intelligence that involves the ability to understand everyday tasks and how efficient one is in adapting to the surrounding environment. Creative intelligence is the type of intelligence that involves the ability to react to novel situations or stimuli.

Explanation:

hope this helped! ^-^

Robert Sternberg's triarchic theory includes analytical intelligence (problem-solving, analysis), creative intelligence (creating, imagining), and practical intelligence (application of knowledge in day-to-day situations).

Robert Sternberg's triarchic theory of human intelligence consists of three types or categories: analytical intelligence, creative intelligence, and practical intelligence. Analytical intelligence relates to problem-solving and the analytical evaluation of information. For example, answering a multiple-choice quiz requires analytical intelligence. Creative intelligence involves creating, designing, imagining, or supposing. A student using creative intelligence might generate innovative ideas for a school project. Practical intelligence pertains to the application of intellectual skills in everyday contexts. One might use practical intelligence when navigating a social situation or solving real-world problems.

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Bone's structure is optimized for strength due to its complex arrangement of organic and inorganic materials.

Tensile strength is a key factor: collagen fibres in bone resist pulling forces, making it flexible yet tough.

Compressional strength is achieved through the dense arrangement of mineralized hydroxyapatite crystals, providing resistance against crushing loads.

This combination of tensile and compressional strength allows bone to withstand bending, twisting, and impact. In contrast, concrete primarily relies on compressional strength, making it brittle and prone to fracture under tension.

Bone's intricate structure, with collagen providing flexibility and hydroxyapatite providing rigidity, makes it significantly stronger and more resilient than concrete in various mechanical scenarios.

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Bones have a higher tensile and compressional strength than concrete due to their composite structure of collagen fibers and mineralized matrix, along with a complex microarchitecture designed to adapt to mechanical stresses. These aspects make bones robust and efficient weight-bearing structures.

The aspects of bone's structure that make it stronger than concrete are related to its complex microarchitecture and composite nature, which enable it to have a high tensile strength and compressional strength. Bones are formed from collagen, much like the steel rebar in concrete, and a mineralized matrix rich in calcium, which bears similarity to the concrete itself. However, the collagen provides flexibility and tensile strength, while the inorganic salts provide compressional strength, making bones robust and capable of adapting to mechanical stresses.

The ultimate strength of human bones, particularly in the femur, is impressive, with an ultimate compressive strength of 205 MPa and an ultimate tensile strength of 135 MPa. This strength is a result of bones being weight-bearing structures, designed to carry loads much like the columns in a building or fibrous structures like trees. The engineering design of bones takes into account different stresses on different parts of the body, which is why the structure of the femur can vary from thin sheets separated by marrow to cylindrical shapes filled with or without marrow.
The elastic modulus of bone also varies based on whether it is under tension or compression, highlighting the bone's capability to withstand different directional forces. Such properties make bones incredibly efficient at carrying weight and resisting different types of stresses without fracturing under normal circumstances.

Answer:

Light is composed of discrete chunks that must be absorbed as units

Explanation:

Answer: the answer is D if you do t wanna read all that

Final answer:

Imaging radar has enabled the monitoring of flood extents, improved aircraft detection via Doppler technology, and contributed significantly to space exploration by mapping celestial bodies.

Explanation:

The use of imaging radar has led to several significant discoveries. One such discovery is the ability to monitor flood extents under any weather condition, as demonstrated by data from the European Resource Satellite (ERS-1), which clearly depicted the smooth surface of a flooded Mississippi River deflecting radio signals away while the surrounding rougher land reflected them. Additionally, the Doppler radar technology has enabled the differentiation of aircraft from ground echoes by leveraging the Doppler shift, significantly improving aerial detection systems. Beyond aviation and weather forecasting, radar has been instrumental in space exploration, determining distances to planets, rotation periods of Venus and Mercury, and mapping the terrain of various celestial bodies with high resolution.

1. 10sec

2. Can not be determined

3. 0.1wave/sec

Answer :

(1) T = 10 seconds

(2) Wavelength cannot be determined.

(3) Frequency, [tex]\nu=0.1\ waves/sec[/tex]

Explanation :

(1) From the given graph :

Time period of the wave is defined as the time taken by it to complete one cycle.

So, the period of this wave is (C) " 10 seconds".

(2) The distance between two consecutive crest or the trough is called the wavelength of the wave.

From the graph it is clear that the distance between two consecutive crests is 10 cm(see attached figure).

So, the correct option is (a) "10 cm".

(3) As the time period of the wave is 10 seconds.

So, [tex]f=\dfrac{1}{T}[/tex]

[tex]f=\dfrac{1}{10\ s}\ waves/sec[/tex]

[tex]f=0.1\ waves/sec[/tex]

So, the correct option is (c) " 0.1 wave/sec ".