what is the orbital period, to the nearest hundredth of a year, of an asteroid has a major axis length of 5.07 a.u.

answer:

true

explanation:

Answer:

True!

Explanation:

cadmium is being used during controlled reaction which creates the energy!

I took this test! :3

The human eye detects and interprets wavelengths between 380 nm and 760 nm (400-790 nm) as visible light, whereas ultraviolet radiation ranges from 200 to 400 nm. The infrared portion of the electromagnetic spectrum spans about the range from 1 mm - 750 nm.

The range of electromagnetic radiation's frequencies, along with their corresponding wavelengths and photon energies, is known as the electromagnetic spectrum.

The electromagnetic spectrum includes electromagnetic waves with frequencies between one hertz and above \(10^{25}\)hertz, or wavelengths between thousands of kilometers and a small portion of the size of an atomic nucleus. The electromagnetic waves found within each of these bands are referred to by a different name; starting at the low frequency (long wavelength) end of the spectrum, these are radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. This frequency range is divided into separate bands.

Spectroscopy can be used to separate waves of various frequencies over the majority of the electromagnetic spectrum, resulting in a spectrum of individual frequencies. Spectroscopy is used to investigate how electromagnetic waves interact with matter.

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Answer:

Acceleration is 0. Acceleration is the change in velocity over time, so if acceleration is 0, the change in velocity is 0 no matter how much time passes. THIS DOES NOT MEAN VELOCITY IS 0. it only means that velocity is constant. In other words, the speed of motion will not change

Explanation:

Answer:

It carries and stores sperm cells that are created in the testes.

Electromagnetic waves (EM) can propagate in a vacuum, but this phenomenon can be extended to material media, whether conductive or nonconductive. EM waves are comprised of oscillating electric and magnetic fields that travel at the speed of light.

A vacuum is a region of space that contains no matter, while a material medium is a physical substance that electromagnetic waves can travel through. Conductive media can also alter the propagation of electromagnetic waves. Conductive media are substances that conduct electrical charges, like metals. In such materials, EM waves are influenced by the interactions between the oscillating electric field and the electrons present in the metal. The frequency of the waves is modified, and they travel through the material at a slower pace than in a vacuum. This results in an attenuation of the signal, which means that it loses energy over distance.

However, nonconductive materials can support the propagation of EM waves without much loss in signal strength. Nonconductive materials are substances that do not conduct electrical charges, such as glass, water, and air. In these materials, the EM waves are influenced by the molecular structure of the medium and are usually slower than in a vacuum. However, this does not cause attenuation.

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Answer:

8n

Explanation:

A wind of 180mph will place a force of 32400 Ib on a surface of 4ft².

The force of the wind blowing on a vertical surface varies jointly as the area of the surface and the square of the velocity.

If a wind of 60mph exerts a force of 20lb on a surface of 1/5 ft², how much force will a wind of 180mph place on a surface of 4ft²

A force of 1250lb is exerted

since the force of the wind varies jointly as the area of the surface and the square of the velocity,

let f = force

a = area

velocity =v

from the above statement, we find out that

f ∝ a * v²----1

that is  f = k * a * v²    -----2

where k is a coefficient of proportionality

since velocity of wind in mph, v =60

and force in lb = 20

and surface area = 1/5 ft²

from equation 2

20 = 1/5 * k * 60²

20 * 5 /3600 = k

25/9 = k

A wind of 180mph will place a force of on a surface of 4ft².

f = 25/ 9 *4 * 180²

f = 32400

Therefore, a wind of 180mph will place a force of 32400 Ib on a surface of 4ft².

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Answer:

Answer in Observational evidence (b)

The evidence needed to formulate a hypothesis is observational evidence. From keen observations, we are formulating a scientific hypothesis.

Hypothesis is a plausible scientific statement which predicts a process or result of an experiment based on observations. Hypothesis can be made from well established scientific records also.

Some are formulating hypothesis based on some intuitions, while some others are formulated based on inductions or  deductions. An experiment starts from a clear cut hypothesis.

A hypothesis must be testable, falsifiable. A scientific hypothesis must be based on a strict observation and for a considerable time and the observations must support for the statement derived for the solution.

Hence, the evidence is needed for a or a hypothesis to be supported or not supported is observational evidence.

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Answer:

the answers is 321 m

Explanation:

here's a picture of it

In every energy transfer and transformation, some energy is transformed into _____ ______

Answer:

Thermal Energy

The ratio of the heat capacity of a system to its mass is referred to as option b) specific heat.

Specific heat is a measure of the energy required to raise the temperature of a unit mass of a substance by one degree Celsius. This is usually done using a calorimeter, which is a device that measures the heat of a reaction. The units of specific heat are joules per kilogram per degree Celsius (J/kg•°C).

Specific heat is different from other thermodynamic properties such as enthalpy, which is the total heat content of a system, and entropy, which is a measure of the disorder of a system. It is also distinct from molar heat capacity, which is the heat capacity per unit amount of a substance.



The specific heat of a substance is calculated using the equation:

C = q/(m•∆T)

where C is the specific heat, q is the energy required to raise the temperature of the substance, m is the mass of the substance, and ∆T is the change in temperature.

Specific heat can be useful in many applications. For example, it can be used to calculate the energy required to heat or cool a substance, as well as the rate of heat transfer. It is also useful in the design of thermal systems, such as refrigerators and heaters, as it can be used to calculate the amount of energy required to maintain a certain temperature.

Therefore, the correct answer is option b) specific heat.

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The trip takes a total of 1.5 hours and has an average speed of 40 mph.

To calculate the time taken for each leg of the trip, we can use the formula time = distance/speed.

For the first leg of the trip, the car travels 15 miles at a speed of 45 mph. Using the formula, we find that the time taken for this leg is 15/45 = 0.33 hours.

For the second leg of the trip, the car travels another 15 miles but at a speed of 30 mph. Using the formula, we find that the time taken for this leg is 15/30 = 0.5 hours.

To find the total time for the trip, we add the times for each leg: 0.33 hours + 0.5 hours = 0.83 hours.

To calculate the average speed for the entire trip, we use the formula average speed = total distance/total time. The total distance traveled is 15 miles + 15 miles = 30 miles. The total time taken is 0.83 hours. Plugging these values into the formula, we find that the average speed for the trip is 30/0.83 = 36.14 mph.

Therefore, the trip takes a total of 1.5 hours and has an average speed of 40 mph.

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Both the ball and the magnet will reach the ground at the same time because the presence of the coil does not affect the rate of free-fall acceleration of the magnet.

This is because, according to the principle of equivalence, objects with different masses fall at the same rate in a vacuum. In this case, the effect of the coil on the magnet is negligible since the magnet's mass is much smaller than that of the Earth. Therefore, both the ball and the magnet will experience the same acceleration due to gravity and reach the ground at the same time, regardless of the presence of the coil.

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Answer:

A.add the forces

Explanation:

since they're both going in the same direction then they should be added to get the total net force.

pls mark me brainliest

The net force acting on the airplane if, An airplane is flying at 80 kilometers per hour when a strong tailwind, traveling in the same direction at 5 kilometers per hour is 85 km/hr so, option A is correct.

Force is the influence of either pull or pushes in the body. Basically, gravitation forces, nuclear forces, and friction forces are the types of forces.

For e.g. when the wall is hit by a hand then a force is exerted by the hand on the wall as well as the wall also exerts a force on the hand. There are different laws given to Newton to understand force.

Given:

An airplane is flying at 80 kilometers per hour when a strong tailwind, traveling in the same direction at 5 kilometers per hour,

Calculate the net force acting on the airplane as shown below,

The net force acting on the airplane = The velocity of the airplane + velocity of the wind  (As they both are in the same direction)

The net force acting on the airplane = 80 km / hr + 5 km / hr

The net force acting on the airplane = 85 km / hr

Thus, the net force acting on the airplane is added.

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Answer:

Finding time period of SHM from equation of displacement

Explanation:

0

Say for example I've got the equation of a SHM as:

x=Acos(ωt+ϕ)

where A is the amplitude.

How do I find the time period of this motion?

I tried by finding the second order differential of the given equation.

a=d2xdt2=−Aω2cos(ωt+ϕ)

Comparing it with the general equation for acceleration a=−ω2x, we can find ω from here.

But that is where the problem is coming. It makes no sense if I write ω=ωA−−√.

What is the correct method to find the time period of the SHM? What am I missing?

There is a very simple mistake in your math. Notice A is part of x, it is factored so you'll get to ω=ω again. If you want to find a meaning to ωT=2π, consider the fact that cos (or sin) are periodic functions with period 2π. Hence, every time you have a time difference such that ω(t1−t2)=2π you are back at the same point. Hence the period is given by ωT=2π.

Answer:

51.1 is the answer

Explanation:

Answer:

Explanation:

Silver, Bronze, Gold

Answer:

   L = 40 cm

Explanation:

A microscope is an optical instrument built by two lenses in such a way that the image of the first is formed within the distance of the other (eyepiece), so that the latter creates an enlarged virtual image of the object, for which the magnification of the microscope is the same to the multiplication of the magnification of each lens

    M = - L / f₀ (25 cm /\(f_{e}\))

where fo and fe are the focal lengths of the objective and eyepiece, 25 cm is the near vision distance and L is the length of the microscope

     L = - M f_{o} f_{e} / 25

let's calculate

     L = - (-100) 2 5/25

      L = 40 cm

Answer:

C. Potential energy

D. Kinetic energy

Explanation:

Answer:

amount of displacement divided by the time the displacement occurs

Explanation:

Best answer of those given

The expression of traits is determined by a combination of genetic factors, such as the alleles inherited from parents, and environmental factors, including nutrition and exposure to stimuli. The interplay between genes and the environment contributes to the unique expression of traits in individuals.

Our traits are determined by our genes, which are segments of DNA inherited from our parents.                                                                          Genes provide the instructions for building and regulating various traits, such as eye color, height, and behaviors.          Genes come in different forms called alleles, representing variations of a specific trait.                                                                             For example, there are alleles for blue and brown eye color.                                                                                                                The combination of alleles inherited from both parents determines our traits.                                                                                                                                                                            Some alleles are dominant, expressing themselves even if only one copy is present.                                                                         Others are recessive, requiring two copies for expression.                                                                                                                                                                             For instance, a dominant allele for brown eyes overrides a recessive allele for blue eyes.                                                  Environmental factors also play a role in trait expression.                                                                                                                          These factors include nutrition, chemical exposure, temperature, and social interactions.                                                           They can influence how genes are expressed and interact with each other.                                                                                    The interplay between genes and the environment leads to various outcomes.                                                                                        For example, an individual with a genetic predisposition for a disease may or may not develop it depending on environmental factors like lifestyle choices.                                                                                                                                                                              Therefore, expression of traits is determined by both genetic and environmental factors.

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a) The motion of the object between 15 s to 30 s is increasing velocity, to a constant velocity and finally a decreasing velocity.

(b) The average velocity of the object between 0 and 15 seconds is 0.167 m/s.

(c) The position of the object at 5.0 seconds is 0.5 m.

(d) Between 30 and 40 seconds, the velocity of the object is decreasing and the object is decelerating.

(a) The motion of the object between 15 s to 30 s can be described as increasing velocity, to a constant velocity and finally a decreasing velocity.

(b) The average velocity of the object between 0 and 15 seconds is calculated as;

average velocity = total displacement / total time

average velocity = (2.5 m - 0 m ) / ( 15 s - 0 s ) = 0.167 m/s

(c) The position of the object at 5.0 seconds is calculated as follows;

at 5.0 seconds, the position of the object is traced from the graph as 0.5 m.

(d) The motion of the object between 30 and 40 seconds is calculated as;

velocity = ( 0 m - 4 m ) / ( 40 s - 30 s ) = - 0.4 m/s

Between 30 and 40 seconds, the velocity of the object is decreasing and the object is decelerating.

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Answer:

(a) 5.62 m/s²

(b) 5.46 m/s²

Explanation:

The given values are:

mass,

m = 50 kg

angle

= 35°

(a)

If friction neglected,

⇒ \(F_x=mgSin \theta=ma\)

⇒ \(a_x=gSin \theta\)

       \(=9.8 \ Sin35^{\circ}\)

       \(=5.62 \ m/s^2\)

(b)

If friction present,

⇒ \(F_x=mgCos \theta\)

⇒ \(F_x=mgSin \theta-\mu_r mgCos \theta\)

⇒ \(a=gSin \theta-\mu_rgCos \theta\)

      \(=9.8 \ Sin35^{\circ}-0.02\times 9.8 \ Cos30^{\circ}\)

      \(=5.46 \ m/s^2\)

Answer:

The nuclear force

Explanation:

hope this helps

The given statement "If the radioactivity of a material is not known, the half-life cannot be determined" is (b). false statement because half-life, in radioactivity, is the amount of time needed for half of a radioactive sample's atomic nuclei to decay.

Or, alternatively, the amount of time needed for a radioactive material's rate of disintegrations per second to decrease by half. Cobalt-60, a radioactive isotope used in radiotherapy, has a half-life of 5.26 years, for instance. As a result, after that time, a sample that contained 8 g of cobalt-60 at first would only have 4 g of cobalt-60 and would produce half as much radiation. Only 2 g of cobalt-60 would remain in the sample after an additional delay of 5.26 years.

However, neither the volume nor the mass of the initial sample are shown to decrease because when cobalt decays, unstable cobalt-60 nuclei turn into stable nickel-60 nuclei, which stay with the cobalt that hasn't yet broken down.

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Answer:

heliocentric is when the earth and the other planets revolves around the sun.

Explanation:

I'm not sure about which one but I do know what heliocentric is.

The question pertains to the Bernoulli equation and asks about the initial substitution that needs to be made when working with this equation.

To begin working with the Bernoulli equation, the initial substitution involves replacing the total pressure (which includes both static pressure and dynamic pressure) with the sum of the static pressure and the pressure due to the velocity of the fluid. This substitution simplifies the equation by separating the pressure terms from the velocity terms. The Bernoulli equation relates the pressure, velocity, and elevation of a fluid along a streamline and is derived from the principles of conservation of energy for an ideal, incompressible fluid flow.

The Bernoulli equation states that the sum of the pressure energy, kinetic energy, and potential energy per unit volume of fluid is constant along a streamline. By substituting the total pressure with the sum of static pressure and the pressure due to velocity, the equation becomes more amenable to analysis and can provide insights into the behavior of the fluid flow. This initial substitution is crucial for applying the Bernoulli equation and analyzing various fluid flow scenarios, such as in pipes, nozzles, and airfoils.

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Answer:

Explanation:

Meters per second

Answer:

m/s (meters per second)

Explanation: