red dwarf stars (stars between 0.08 and 0.5 solar masses) evolve very differently than other stars as they age because ____.

Answer:

11.1845088571 N

Explanation:

F = k(q1q2)/(d^2)

Object spins around its own axis, while the object moves around another object.

Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space.

The continuous rotation of the Earth about its axis gives rise to the revolution of earth around the sun.

Thus, object spins around its own axis, while the object moves around another object.

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answer: rotating, revolving

The water pressure is greatest at point B which has a larger diameter in this scenario.

This is defined as the force per unit area of a substance with its unit being Pascal.

The larger diameter will have more force acting on the sides which translates to a greater pressure.

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Answer:

0.372779 cubic meters

Explanation:

Answer:

.3104 m^3

Explanation:

1 gal (US) = .00378541178 m^3

Explanation:

Hope this helps .

Good luck ✅.

Answer:

a

Explanation:

Polymers are large molecules which form long chains

Answer: A. Polymers are substances that have relatively large molecules.

Explanation:

Select the correct answer.

Which statement about polymers is true?

A. Polymers are substances that have relatively large molecules.

B. Oil and gas are the starting materials for making all polymers.

C. Fabrics such as cotton and silk are synthetic polymers.

D. All polymers are obtained from living organisms.

Combustion is when you use oxygen to convert fuel to heat and light energy. Option B is correct.

Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives heat.

The fuel can be a solid, liquid, or gas.

For example, charcoal is combined with oxygen.

Combustion is commonly called burning, and the substance that burns is usually referred as fuel.

For combustion to occur few things must be present:

fuel to be burned.

A source of oxygen

A source of heat.

Hence, Combustion is when you use oxygen to convert fuel to heat and light energy. Option B is correct.

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The North America will not be able to view the eclipse because of its location on the earth caused by the tilting of the earth.

The tilt of the Earth is what causes seasons to occur. These are the seasons in relation to the Northern Hemisphere.

The tilting of the Earth causes the difference in the amount of sun reaching each region of the earth like in the North America continent.

Thus, the North America will not be able to view the eclipse because of its location on the earth caused by the tilting of the earth.

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Answer:

Because of the Cohesion

In the context of variables and measurement scales, the magnitude of the differences between the numbers on the scale is meaningful interval scale.

It should be noted that an interval scale means a measurement where the difference between the variables is meaningful and equal.

In this case, in the context of variables and measurement scales, the magnitude of the differences between the numbers on the scale is meaningful interval scale.

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Answer:

3.5

Explanation:

hope it helps good day

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The potential energy of the bowling ball due to its position above the ground is 137.2 Joules. Therefore, the correct answer is 137 J The correct option is (b).

Given:

mass (m) = 7.00 kg

gravitational acceleration (g) = 9.80 m/s²

height (h) = 2.00 m

The potential energy of the bowling ball due to its position above the ground, we can use the formula for gravitational potential energy:

Potential Energy (PE) = mass × gravitational acceleration × height

The potential energy:

PE = 7.00  × 9.80 × 2.00 m

PE = 137.2 Joules

So, the potential energy of the bowling ball due to its position above the ground is 137.2 Joules. Therefore, the correct answer is 137 J (b).

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The ultraviolet electromagnetic wave would be most useful for this task.

infrared microwave and radio waves will not be effective in removing the contamination and bacteria.

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Answer: Ultraviolet

Explanation: got it right on edge

The magnitude of the electric field between the two electrodes in ionization type detectors is an electric field can be given in volts per meter.

The magnitude of the electric field varies with distance, d, from the charge based on the charge of the respective particle. Therefore, the electric field for a single point charge can be easily calculated from these measured values.

In the International System of Units, the electric field strength is measured in volts per meter (V/m).

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Answer:

Yes

Explanation:

Average velocity is the ratio of total displacement and time taken for that displacement:

[tex]average \space\ velocity = \frac{displacement}{time}[/tex]

This means if displacement is zero, then average velocity will also be zero.

Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.

∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.

The car’s acceleration in g’s is equal to 0.67 m/s² and the centripetal force acting on is equal to 4033.47 Newton.

Since the car’s acceleration is given as 6.61 m/s², we would simply divide it by the acceleration due to gravity (9.8 m/s²) to calculate the car’s acceleration in g’s as follows:

Acceleration, g = 6.61/9.8

Acceleration, g = 0.67 m/s².

Mathematically, the centripetal force acting on this car can be calculated by using this formula:

Fc = mv²/r

Fc = (610 × 54²)/441

Fc = 1778760/441

Fc = 4033.47 Newton.

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Answer:

the answer is C

Explanation:

i did this

[tex]x_{0} = v \sqrt{\frac{m}{2k}\\}[/tex] is the velocity of the object.

It states that energy can neither be created nor destroyed only converted from one form of energy to another.

According to law of conservation of energy:

T.E = Constant.

Also , P.E. = [tex]\frac{1}{2} kx^{2}[/tex] , K.E. = [tex]\frac{1}{2} mv^{2}[/tex]

T.E = P.E + K.E = [tex]\frac{1}{2} mv^{2}[/tex]

According to the question ,

2P.E. = [tex]\frac{1}{2} mv^{2}[/tex]

P.E. = [tex]\frac{mv^{2} }{4} = \frac{1}{2} k x_{0} ^{2}[/tex]

[tex]x_{0} ^2= v^{2} \frac{m}{2k}\\[/tex]

[tex]x_{0} = v \sqrt{\frac{m}{2k}\\}[/tex]

Therefore, the velocity of the object when the spring returns to the equilibrium position is best represented by [tex]x_{0} = v \sqrt{\frac{m}{2k}\\}[/tex]

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Answer:

Motion of an object that travels in a curved path under the influence of Earth's gravitational field. Examples include throwing a ball, javelin throw, and golf ball.

Explanation:

Answer:

1. In sports.

2. In programming or Animation.

3. In home appliances.

4. In military.

Explanation:

1. In sports. Being common in sports, projectile motion is applied in motion of a projectile which is usually a ball. This is because we are able to calculate the angle of the flight developed by a ball to maximize its distance or velocity. For example in baseball and basketball.

2. In programming or Animation. Considering that there is a challenge for animators and programmers in modern world, physics is applied in televisions or video games. For example a baseball being hit by a player in video game or TV, it should look real. Hence the application of projectile motion.

3. In home appliances. Appliances for example hose or water gun uses an application of projectile motion. As the water exits the hose or water gun, the angle over which the water travels depends on the distance moved and force that is being applied.

4. In military. Bullets being shot from the barrel of the gun is a projectile in air. The speed of the bullet is higher than that of the water exiting the hose therefore it will travel a longer distance. The manufacturers of weapons such as a gun tries to maximize the speed while minimizing gun's recoil.

Answer:

8.35 × [tex]10^{-3}[/tex] kg

Explanation:

Remember the formula for heat:

[tex]Q=mc\Delta T[/tex]

You just need to solve for m, doing so you're left with:

[tex]m=\dfrac{Q}{c\Delta T}[/tex]

Replace the variables with numbers and that's it.

Answer:

Damp Proofing:

Explanation:

The presence of damp proofing is very necessary to maintain the health of a structure. DPC plays an important role in all types of buildings and it should be necessary to know about the importance, requirements, and properties of DPC. In many of the buildings all over the world, the rising damp may be due to a damaged damp-proof course, or sometimes, there may be not any damp proof course in a building.

Answer:

D

Explanation:

Deep sea and sea floor marine habitats would have the least access to primary producers. The correct option is (d).

Primary producers would have the least access to habitats in the deep sea and on the ocean floor. Primary producers are animals and plants that can use sunlight as an energy source to photosynthesize and make their own food, including algae and phytoplankton.

Because of the depth of the water, light penetration is constrained in the deep sea and sea floor settings, making it difficult for creatures that rely on photosynthesis to survive.

In comparison to other maritime ecosystems, where sunlight is more easily obtainable, such as coral reefs, lagoons, salt marshes, estuaries, mangroves, and intertidal zones, these habitats often have lower amounts of primary production.

Therefore, The correct option is (d) deep sea and sea floor.

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The statement 'all energy in the universe is a result of mass being converted into energy' correctly describes mass-energy equivalence.

The expression mass-energy equivalence refers to the proportion of matter that can be converted into energy in the universe.

This mass-energy equivalence is an outcome of process of converting mass into energy.

In conclusion, the statement 'all energy in the universe is a result of mass being converted into energy' correctly describes mass-energy equivalence.

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Answer:

C

Explanation:

Answer:

D

Explanation:

Anaerobic Respiration only

Answer:

I'm not a scholar of hydroelectric power in Nepal, so consider my answers carefully, below.

Explanation:

High Potential:  Hydroelectric power comes from the potential energy stored in a mass that is above Earth's surface.  As the word "hydro" implies, the mass in this case is water.  Water from snow and glacier melt, and from normal precipitation (rain) in mountainous regions eventually cascades down the mountains in fast-flowing rivers or waterfalls.  Often, there are lakes or man-made reservoirs to collect and store the water before it flows down.  Mt. Everest is 8848 meters tall (about 29,000 feet).    If a lake forms at just 2,000 meters, one can calculate the amount of energy in each kilogram of water stored in the lake that represents the potential energy available at that altitude.  1 kg of water at 2,000 meters has potential energy, PE, according to the equation:  PE = mgh, where m is the mass in kg, g is Earth's acceleration due to gravity (9.8 m/sec^2), and h is height, in meters.  

PE = mGH

PE = (1 kg)*(9.8 m/sec^2)*(2,000 meters) = 19,000 kg*m/sec^2

1 kg*m/sec^2 is the SI unit for 1 Joule, a measure of energy.

This potential energy can be converted into electrical energy by releasing the water so that it can flow down to a water-powered turbine that spins magnets and coils of wire that produce electricity.  The 19,000 Joules of water potential energy can be converted to electrical power, less any inefficiency in the system, such as friction.

Nepal has the natural advantage in that it has many high mountain ranges with water flows that can be used for generating electrical power.  The result is low operating costs (the fuel is the flowing water) and no greenhouse gas emissions

The difficulty in developing hydroelectric power in Nepal is due to the same factor that gives it an advantage:  it is difficult constructing large hydroelectric plants in such rough terrain, and the power lines that are needed to transport the power to its destination are expensive and difficult to maintain and repair.

The claim of the student is True, he can produce linear momentum in carrom with the help of b.

To explain the principle of linear momentum we can say that:-

According to the principle of conservation of momentum, if two things collide, the total momentum before and after the impact will be the same if no external force occurs on the colliding items.

Linear momentum conservation When the net external force is zero, the momentum of the system remains constant, as expressed mathematically by the expression.

Initial momentum = final momentum

Formula of Linear momentum is:-

Linear momentum = mass × linear velocity

P = M × V

The law of momentum conservation is based on Newton's third rule of motion, which states every force has a corresponding and opposing reciprocating force.

So we understand that Principle of Linear momentum. The initial momentum is equal to final momentum after collision hence, the carrom striker follows the concept of linear momentum.

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Answer:

π/10 rads

Explanation:

It takes an hour (60 minutes) for the minute's hand to turn a full circle or achieve an angular rotation of

2πl rad.

Now, number of periods of 3 minutes in an hour is;

Number of periods = 60/3 = 20 periods

Thus, 3 minutes rotation accounts for 1/20 of 2π the rotation of the minute's hand in an hour.

Thus;

Angular displacement = (1/20) * 2π = π/10 rads

Gravitational potential energy has changed from the beginning to the chain just sliding away from the table willl be MgL/24.

The energy that an item has due to its location in a gravitational field is known as gravitational potential energy.

Length of hanging part, L/4

The gravitational potential energy is;

Work = Gravitational potential energy

Work done =force×displacement

[tex]\rm W = \frac{Mg}{3} \times \frac{L}{8} \\\\ W = \frac{MgL}{24}[/tex]

Hence, gravitational potential energy has changed from the beginning to the chain just sliding away from the table willl be MgL/24.

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