real springs have mass. will the true period and frequency be larger or smaller than given by the equations for a mass oscillating on the end of an idealized massless spring? explain

The velocity of a golf ball with a mass of 47 g and the kinetic energy of a golf ball is measured to be 143 J is 2.44 m/s.

The kinetic energy is the energy obtained when the body is in motion. The kinetic energy equals half of the product of mass and the square of the velocity of the object. The velocity is a vector quantity that defines the speed with a particular direction and the unit of velocity is m/s. The unit of kinetic energy is Joule (J).

From the given,

the mass of a golf ball = 47 g = 0.047 kg

the kinetic energy = 143 J

the velocity of a golf ball =?

K.E = 1/2 (mv²) where m is the mass and v is the velocity.

v² = 143×2 / 0.047

   = 286 / 0.047

  = 6085.10

v² = 6085.1

v = √6

  = 2.44

v = 2.44 m/s.

Thus, the velocity of a golf ball is 2.44 m/s.

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If two rocks are the same size but one is heavier, the larger rock will fall to the ground first because it has a higher density than the lighter one.

Both the gravitational pull and the acceleration are stronger on objects that are heavier. As it turns out, these two processes precisely cancel one another out to produce a falling item with the same acceleration regardless of mass.

The two rocks fall at the same rate because acceleration is dependent on both mass and net force, which in this case is the weight of each rock.

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Answer:

Parallax, Hubbles law

Explanation:

Quizlet

Being informed that the planets Mercury and Venus, in addition to the Moon, also have phases is one of the joys of studying astronomy. The mechanics underlying the phases as well as the visual experience on these planets are somewhat different.

We observe the phases of these two planetary disks because of the varying position angle between the Earth, Sun, Mercury, and Venus caused by the relative positions of our orbits to one another. When Venus lies between the Earth and the Sun, it appears as a thin crescent in telescopic views as it rotates to the near side. When Venus is far from the Sun, it displays its new phase. The planet may be observed through a telescope at first light because it has an atmosphere.

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Answer:

The momentum of the steel ball is 0.28 kg m/sec.

Explanation:

The momentum of an object can be calculated using the formula: momentum = mass x velocity. In this case, the mass of the steel ball is 100 g, which is equivalent to 0.1 kg. The velocity of the ball is 2.8 m/sec. Plugging in the values into the formula, we get:

momentum = 0.1 kg x 2.8 m/sec

momentum = 0.28 kg m/sec

So the momentum of the steel ball is 0.28 kg m/sec.

Answer:

To actually do it what are you referring to comment below I'll assist further

Answer:

\( \boxed{\sf Distance \ travelled = 62.5 \ m} \)

Given:

Initial velocity (u) = 25 m/s

Final velocity (v) = 0 m/s (Rest)

Time taken (t) = 5 seconds

To Find:

Distance travelled by car (s)

Explanation:

From equation of motion of object moving with uniform acceleration in straight line we have:

\( \boxed{ \bold{s = (\frac{v + u}{2} )t}}\)

By substituting value of v, u & t in the equation we get:

\( \sf \implies s = ( \frac{0 + 25}{2} ) \times 5 \\ \\ \sf \implies s = \frac{25}{2} \times 5 \\ \\ \sf \implies s = 12.5 \times 5 \\ \\ \sf \implies s = 62.5 \: m\)

\( \therefore\)

Distance travelled by car (s) = 62.5 m

The distance  car travel during that time is 62.5 meter.

Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

Initial velocity (u) = 25 m/s

As the car becomes rest, final velocity (v) = 0 m/s (Rest)

Time taken (t) = 5 seconds.

The deceleration of the car: a = (initial speed - final speed)/time interval

= ( 25 m/s - 0 m/s)/5 second

= 5 m/s²

The distance  car travel during that time = ut - at²/2

= 25 × 5.0 meter - (5×5²/2) meter

= 62.5 meter.

Hence, the distance  car travel during that time is  62.5 meter.

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Answer:Falling objects form an interesting class of motion problems. For example, we can estimate the depth of a vertical mine shaft by dropping a rock into it and listening for the rock to hit the bottom. By applying the kinematics developed so far to falling objects, we can examine some interesting situations and learn much about gravity in the process.

Explanation:

Answer:

It is 10 m/s

Explanation:

Answer:

where is the multiple choice?

The neutron number can be calculated by subtracting the atomic number from the mass number. In this case, 54 - 23 = 31. Therefore, the neutron number is 31.
To determine the element identity, we need to find the element with a mass number of 54 and a proton number of 23. This can be done by looking at the periodic table. Based on these numbers, we know that the element has 23 protons, which places it in the 23rd position on the periodic table. The element with the atomic number 23 is vanadium (V). Therefore, the element identity is vanadium (V).
In summary, for an element with a mass number of 54 and a proton number of 23, the neutron number is 31 and the element identity is vanadium (V).
To determine the neutron number and element identity, you can use the given mass number (A) and proton number (Z).
1. Neutron number:
Neutron number = Mass number (A) - Proton number (Z)
Neutron number = 54 - 23
Neutron number = 31
2. Element identity:
Since the proton number (Z) is also the atomic number, you can use it to identify the element. With an atomic number of 23, the element is Vanadium (V).
In summary, for the element X with mass number 54 and proton number 23, the neutron number is 31, and the element is Vanadium (V).

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Answer:

it is chemical energy

Explanation:

that is the energy used by our body, so it is the one that we will loose. and the energy that we gain is also chemical energy

Answer:

The outline of the energy transfer are;

a) Kinetic energy → Clockwork spring → Potential energy

b) Potential energy in clockwork car → Clockwork spring coil unwound → Clockwork car run

c) Chemical potential energy → Batteries in the car → Electric motors → Kinetic energy

Please find attached the drawings of the energy transfer created with MS Visio

Explanation:

The energy transfer diagrams are diagrams that can be used to indicate the part of a system where energy is stored and the form and location to which the energy is transferred

a) The energy transfer diagram for the winding up a clockwork car is given as follows;

Mechanical kinetic energy is used to wind up (turn) the clockwork car such that the kinetic energy is transformed into potential energy and stored in the wound up clockwork as follows;

Kinetic energy → Clockwork spring → Potential energy

b) Letting a wound up clockwork car run results in the conversion of mechanical potential energy into kinetic (energy due tom motion) energy as follows;

Potential energy in clockwork car → Clockwork spring coil unwound → Clockwork car run

c) The energy stored in the battery of a battery powered car is chemical potential energy. When the battery powered car runs, the chemical potential energy produces an electromotive force which is converted into kinetic energy as electric current flows from the batteries

Therefore, we have;

Chemical potential energy → Batteries in the car → Electric motors → Kinetic energy

No, it is not possible. Accelerating a massive object to the speed of light would require infinite energy. The correct answer is b).

According to Einstein's theory of relativity, as an object with mass approaches the speed of light, its relativistic mass increases. This means that as the object's speed gets closer to the speed of light, its mass increases, making it harder and harder to accelerate further.

As an object with mass accelerates, its kinetic energy increases, and according to classical physics, kinetic energy is given by the equation

KE = 1/2 mv².

As the object approaches the speed of light, its mass increases, which means that more and more energy is required to continue accelerating it.

In fact, as an object with mass approaches the speed of light, its relativistic mass becomes infinite, which implies that an infinite amount of energy would be needed to reach or surpass the speed of light.

Therefore, it is not possible to accelerate a massive object to the speed of light in a real situation due to the requirement of infinite energy.

The correct answer is b)

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The earth connection offers protection in case of an electrical fault.

An electric circuit is a path provided for the flow of current. Usually metallic conductors carry electric current in a circuit. Circuits have an earth connection. The essence of the earth connection is to provide protection from possible electric shocks. The earth connection provides a pathway by which current can flow to the earth in event of a fault in the circuit.

Hence, from the statement in the reason and assertion, we can conclude that the reason is an explanation for the assertion in the question.

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The power required to move the automobile to the top of the hill is 130,666.67 watts or 175.41 horsepower.

The power required to move an object can be calculated using the formula: power = work / time.

First, let's calculate the work done in lifting the automobile to the top of the hill. The work done against gravity is given by the formula: work = force × distance.

The force required to lift the automobile is equal to its weight. The weight of an object is given by the formula: weight = mass × acceleration due to gravity.

Substituting the given values, we have: weight = 2,000 kg × 9.8 m/s^2 (acceleration due to gravity) = 19,600 N.

The distance the automobile is lifted is 100 meters.

Therefore, the work done against gravity is: work = 19,600 N × 100 m = 1,960,000 J (joules).

The time taken to reach the top of the hill is given as 15.0 seconds.

Now, we can calculate the power using the formula: power = work / time.

power = 1,960,000 J / 15.0 s = 130,666.67 W (watts).

To convert watts to horsepower, divide the power in watts by 746 (1 horsepower = 746 watts).

power in horsepower = 130,666.67 W / 746 = 175.41 hp (horsepower).

Rounding to two decimal places, the power required to move the automobile to the top of the hill is approximately 130,666.67 watts or 175.41 horsepower.

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The  to problem of calculating the power required to move a 2,000-kilogram automobile to the top of a 100-meter hill in 15.0 seconds is given

Given, Mass of the automobile, m = 2000 knight of the hill, h = 100 time, t = 15.0 the gravitational potential energy of the automobile when at the bottom of the hill is equal to the work done in lifting it up the hill

.W = mgh= (2000 kg) (9.81 m/s²)

(100 m)= 1,962,000 J

Power is defined as the rate at which work is done, or the work per unit time. Therefore,

Power = Work / Time= 1,962,000 J / 15.0 s

= 130,800 WIn horsepower, Power = (130,800 W) / (746 W/hp)

= 175.3 hp

Therefore, the required power to move a 2,000-kilogram automobile to the top of a 100-meter hill in 15.0 seconds is 130,800 W or 175.3 hp.

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Answer: its a

Explanation:

The testes are the primary male reproductive organs responsible for producing testosterone.

Vas Deferens: Also known as the ductus deferens, it is a muscular tube that carries mature sperm from the epididymis to the ejaculatory ducts.

Seminal Vesicles: These glands produce a fluid rich in fructose and other nutrients, which helps nourish and provide energy to the sperm.

Prostate Gland: It is a walnut-sized gland that produces a milky fluid containing enzymes, proteins, and other substances that contribute to se men formation.

Cowper's Glands: These small glands secrete a clear, alkaline fluid that lubricates the urethra and neutralizes any acidic urine remnants, creating a favorable environment for sperm.

Urethra: This is a tube that runs  serves as a passage for both urine and semen, though not at the same time.

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Answer:

Retraction

I hope this helps:)

The separation of white light into its component colors is called "dispersion." This phenomenon occurs due to the interaction of light with a medium, such as a prism or a droplet of water.

When white light passes through a medium, such as a prism, the different wavelengths of light that make up white light refract (or bend) at different angles as they enter and exit the prism. This bending of light is known as refraction. The degree of refraction depends on the wavelength of light, with shorter wavelengths being refracted more than longer wavelengths.

As a result of this differential refraction, white light is spread out or dispersed into a spectrum of colors, known as a rainbow. The spectrum includes colors ranging from violet (which has the shortest wavelength) to blue, green, yellow, orange, and red (which has the longest wavelength).

This dispersion of white light into its component colors is the basis for various optical phenomena, such as rainbows, prismatic effects, and the color separation in devices like spectrometers or cameras that use prisms or diffraction gratings to analyze light.

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Power Transmission and Efficiency of Belts. Calculate the efficiency of power transfer of belts. Featured Links. As can be used to express the torque at the driven wheel or pulley

(a). Where T = (F₂ - F₁) r a. torque, or

T (Nm) f = force (N)

Belts: Efficiency in Power Transmission Classical V-belts are usually worn separately, especially in the sizes A and B. Due to financial burdens and inefficiencies, the bigger C, D, and E sizes are typically not employed in single-belt drives. The use of multiple A or B belts is a more cost-effective option than using a single-belt C, D, or E segment.

In belt drives, the input pulley transmits forces to the belt, which then transfers those forces back to the output pulley. Effective force or circumferential force F c are other names for the force that needs to be transferred from one pulley to the next.

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Answer:

a change in velocity can be a change in magnitude (or speed), but it can also be a change in direction.

The correct answer is as follows:

a. A horizontal line means zero velocity.

b. A straight diagonal line means constant velocity.

c. A curved line means changing velocity.

d. A gradually sloped line means slow velocity.

e. A steeply sloped line means​ fast velocity.

The velocity of an object is represented by the slope of a location graph. Thus, the slope's value at a given instant corresponds to the object's velocity at that precise moment.

An object's distance from its beginning position at any given moment since it began moving is displayed on a position-time graph. The greater the slope of the line and the faster the object's speed changes, the steeper the line is.

The Position-Time graph exists the graph where the time t and the particle's instantaneous position x exists shown on the y-axis and x-axis, respectively.

The correct answer is as follows:

a. A horizontal line means zero velocity.

b. A straight diagonal line means constant velocity.

c. A curved line means changing velocity.

d. A gradually sloped line means slow velocity.

e. A steeply sloped line means​ fast velocity.

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The net force on a vehicle that is accelerating at a rate of 1.8 m/s2 is 2100 N. The approximate mass of the vehicle in kg is 1166.67kg.

The word "force" has a clear definition. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.

The vector sum of the forces exerted on a particle or object is known as the net force. The original forces' impact on the motion of the particle is replaced by the net force, which is a single force.

Force ( F ) is 2100N

Acceleration ( a ) is 1.8m/s²

Mass(m)= ?

According to formula;

Force = mass × acceleration

F= m × a

2100 = m × 1.8

2100 / 1.8 = m

Therefore, m = 1166.6kg.

Thus, The net force on a vehicle that is accelerating at a rate of 1.8 m/s2 is 2100 N. The approximate mass of the vehicle in kg is  1166.67kg.

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The decibel level of a pin drop is -47.8 dB. The negative sign indicates that the pin drop sound is significantly quieter than the reference sound intensity.

For the decibel level of a pin drop,

dB = 10 × log10(I/I₀)

Where I is the sound intensity being measured and I₀ is the reference sound intensity,

Sound intensity = 1 / 3000

I/I₀ = 1/30000

log₁₀(I/I₀) = log₁₀(1) - log₁₀(30000) = 0 - log₁₀(30000) = -4.78

dB = 10 × (-4.78) = -47.8

Hence, the decibel level of a pin drop is -47.8 dB. the negative sign indicates that the pin drop sound is significantly quieter than the reference sound intensity.

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The velocity change experienced on a top of the head impact is calculated to be 2.65 m/s.

Given that,

Average force = 1770 N

Mass m = 5.2 kg

Time t = 7.78 milliseconds = 7.78 × 10⁻³ s

From impulse-momentum theorem, we know,

J = Fav Δt = Δp = m Δv

Fav Δt = m Δv

Making Δv as subject, we have,

Δv = Fav Δt /m

Placing the values in the above equation, we have,

Δv = Fav Δt /m = (1770 × 7.78 × 10⁻³)/5.2 = 2.65 m/s

Thus, the velocity change experienced on a top of the head impact is calculated to be 2.65 m/s.

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Hotter is Star X. Ionized helium lines are highest at high temperatures (> 30,000 K), whereas titanium oxide lines are brightest at low temperatures (3000 K), according to the study Absorption Lines in Stars of Different Temperatures. Star X must therefore be hotter than Star Y. A higher amount of electron excitation.

The creation of excimers are two other methods of making helium reactive. Helium that has been ionized (He+), also referred to as He II, is a very high energy substance capable of removing one electron from any other element. One electron only exists in a single, ionized helium atom.

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Chemical properties are observed when matter or substance changes to form a new kind of matter or substance.

This is the term used to describe the ability of a substance or matter to react and form new substance. Chemical properties are used during chemical reaction to be able to control the reaction and get a certain product

we can conclude that chemical properties are observes during chemical reaction to ascertain the new substance or matter to be formed

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Let the angle between the polarizing axes of the two filters be

Let the intensity of polarized light coming out of the first polarizing filter be I1.

Then the intensity of the second polarizing filter will be

Thus, the correct option is B.

Assuming the surface is frictionless, the energy lost to friction would be 0 Joules.

Friction is the force that resists motion between two objects that are in contact with each other. In the experiment, friction is the force that resists the motion of the second spring as it compresses a distance of d2/2. Since the surface is rough, it provides a strong resistance to the motion of the spring, thus leading to a loss of energy.

However, if the surface had been frictionless, then the second spring would have compressed a distance of d2, as there would be no resistance to its motion. This means that no energy would have been lost to friction, as there would not have been any friction present in the system.

In conclusion, friction is the force that is responsible for the loss of energy in this experiment. When the surface is rough, the friction between the surface and the second spring is strong, leading to a loss of energy. However, when the surface is frictionless, the friction between the surface and the second spring is not present, thus no energy is lost to friction.

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Explanation:

1) Kicking a ball.

2) Capture the ball by hand.

3) Push a car.