3. A pendulum is 0.65 meters long. a) What is the period of oscillation? b) What is the frequency of its oscillations? Round to the nearest hundredth. Your answer

The sartorius muscle is the solution. A superficial muscle that runs the full length of the leg, the sartorius is involved in the flexion of the knee and hip.

The heart's wall is made up of cardiac muscle, which also causes the heart to contract vigorously. Intestinal, uterine, blood vessel, and internal ocular muscles are all made of smooth muscles.

The epidermis and some skeletal muscles are linked to the bones (muscles in our face). The skeletal muscles' contraction aids in the movement of the limbs and other bodily parts.

Although some estimates go as high as 840, the majority of sources claim that there are over 650 identified skeletal muscles in the human body.

Therefore, The sartorius muscle is the solution. A superficial muscle that runs the full length of the leg, the sartorius is involved in the flexion of the knee and hip.

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The choice on oil paint that is not used to describe its luminosity is b) stained.

On oil paint, these are used to describe its luminosity:

Stained glass is not used to describe the luminosity of oil paint. Stained glass is made by painting or firing powdered glass onto a surface. Oil paint, on the other hand, is made by mixing pigment with a drying oil. The drying oil allows the pigment to be applied in layers and to build up to create a rich, luminous color.

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The birds, bats, insects, airplanes, rockets, and hot air balloons achieve their flight by creating high pressure below the aircraft and low pressure above it

They both consist of fundamentally simple building blocks. They are composed of substances or mass. Atmospheric and molecular building blocks make up the world.

In order to create high pressure below the aircraft and low pressure above it, airplanes employ specially built wings.

The wing receives sufficient airflow past it to counteract the weight and drag of the aircraft by utilizing a device to provide thrust, such as a propeller.

High pressure underneath the aircraft and low pressure above it is produced by specially constructed wings used by airplanes.

The wing receives enough airflow through it by the use of a thrust-generating device, like a propeller, to overcome the weight and drag of the aircraft.

The differences between how living and non-living things fly;

1. Moving both living and non-living objects consumes energy. Flying animals utilize their wings to create both lift and propulsion by moving them in relation to the body.

In contrast to most air vehicles, where the components that generate lift, wings, and thrust engines or propellers are distinct, the wings stay stationary.

Animal aviators like birds as well as natural parachuters like patagial as well as human inventions like aircraft as well as rockets that can power spacecraft and spaceplanes are just a few examples of the many things that can fly.

Hence, birds, bats, insects, airplanes, rockets, and hot air balloons achieve their flight by creating high pressure below the aircraft and low pressure above it

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Angular momentum is a rotational motion measure defined as the product of an object's moment of inertia and its angular velocity. Angular momentum is commonly expressed in kilogram metres squared per second (kgm²/s). Angular momentum is a vector quantity in physics, which means it has both a magnitude and a direction. The right-hand rule asserts that if the fingers of the right hand are curled in the direction of the angular velocity vector, the thumb will point in the direction of the angular momentum vector.

An object's angular momentum can be computed by multiplying its moment of inertia by its angular velocity. Units of angular momentum expressed in kgm²/s.

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Answer:

70

Explanation:

you do 10+20=30

100-30=70

The energy required to convert 1.70 g of ice originally at -12°C into steam at 105°C is approximately 6162.95 Joules.

To calculate this energy, we need to consider the different energy changes involved in each phase transition. First, we calculate the energy required to heat the ice from -12°C to its melting point at 0°C using the specific heat capacity of ice. Then, we calculate the energy required to melt the ice at 0°C using the heat of fusion for ice. Next, we determine the energy needed to heat the resulting water from 0°C to 100°C using the specific heat capacity of water. Finally, we calculate the energy required to convert the water at 100°C into steam at 105°C using the heat of vaporization for water. Adding up all these energy changes, we find that the total energy required is approximately 6162.95 Joules. This calculation takes into account the various temperature changes and phase transitions that the substance undergoes. It highlights the significant amount of energy needed to convert ice to steam, involving both the heating of the substance and the energy required to change its state.

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It is determined by the nature of the green light. Because lasers create light at almost a single frequency, green laser light would appear as a thin line of pure green. Other sources of "green" light emit light at a variety of frequencies, including yellow and blue, resulting in a strong green band in the center that fades into blue-green and yellow-green at the borders.

For example, here’s a graph of the spectrum of a green LED, showing the color range: Attachment #1

and here’s a graph of the transmission spectra of several standard photographic filters, including green: Attachment #2

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Answer:

A. Fuller pillows that keep her neck straight.

Explanation:

Flat pillows can cause neck and back pain, as they do not provide adequate support for the head and neck. A fuller pillow will help keep the neck straight, promoting better alignment of the spine and reducing the risk of discomfort or injury. Stacking pillows may provide temporary relief, but it is not a long-term solution and may not provide the necessary support for the head and neck. Eliminating pillows altogether may be uncomfortable for many people and may cause strain on the neck and back. Using the pillows to get her feet higher than her head is not a recommended solution for better sleep posture.

What a medium-mass star becomes after a planetary nebula; a very bright, dense mass about the size of the planet Earth. ... The process that generates all of the energy that a star produces. Supernova. A Red Super Giant explodes into this when it runs out of elements to fuse together.

The process that generates all of the energy that a star produces. Supernova. A Red Super Giant explodes into this when it runs out of elements to fuse together. Hence option A is correct.

A red giant is a bright giant star of low or intermediate mass (approximately 0.3-8 solar masses (M)) that has reached the end of its evolutionary cycle. The outer atmosphere is inflated and tenuous, resulting in a wide radius and a surface temperature of 5,000 K (4,700 °C; 8,500 °F) or less. The appearance of red giants ranges from yellow-white to reddish-orange, and includes spectral types K and M, as well as class S and most carbon stars.

Hence option A is correct.

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Answer:

what table?

Explanation:

Answer:

-5

Explanation:

Answer:

How is a water rocket different than a compressed air rocket?

Usually the rocket is made from a 2-liter soda pop bottle. Before launch, the bottle is filled with some amount of water, which acts as the "propellant" for the launch. Since water is about 100 times heavier than air, the expelled water produces more thrust than compressed air alone.

The de Broglie wavelength for a proton moving with a speed of 1.0 x 10⁶ m/s is approximately 6.63 x 10⁻⁹ meters.

The de Broglie wavelength (λ) of a particle is given by the equation:

λ = h / p

Where:

λ is the de Broglie wavelength

h is the Planck's constant (approximately 6.63 x 10⁻³⁴ joule-seconds)

p is the momentum of the particle

The momentum of a particle is given by:

p = mv

Where:

m is the mass of the particle

v is the velocity of the particle

In this case, we are dealing with a proton. The mass of a proton (m) is approximately 1.67 x 10⁻²⁷ kilograms.

Given the speed of the proton (v) as 1.0 x 10⁶ m/s, we can calculate the momentum (p):

p = mv = (1.67 x 10⁻²⁷ kg) x (1.0 x 10⁶ m/s) = 1.67 x 10⁻²¹ kg·m/s

Now, we can calculate the de Broglie wavelength (λ):

λ = h / p = (6.63 x 10⁻³⁴ J·s) / (1.67 x 10⁻²¹ kg·m/s) ≈ 6.63 x 10⁻⁹ meters.

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Answer :

Imma just put it in the explanation

Explanation:

Electric to sound : Radio

Chemical to thermal+radiant+sound+kinetic : Fireworks

Gravitational to kinetic+sound : Waterfall

Chemical to thermal+kinetic : Drinking water (not sure what last answer is called but its supposed to match the girl drinking water lol)

hope this helps

Answer:

To find the work done in moving the particle from the origin to x = 2, we need to integrate the force over the given interval.

The work done (W) is calculated by integrating the force function with respect to displacement (dx) from the initial position (0) to the final position (2):

W = ∫(0 to 2) (10x³ - 5) dx

Integrating the force function, we get:

W = ∫(0 to 2) (10x³ - 5) dx = [2.5x⁴ - 5x] evaluated from 0 to 2

Now, substituting the upper limit (2) and lower limit (0) into the equation:

W = [2.5(2)⁴ - 5(2)] - [2.5(0)⁴ - 5(0)]

 = [2.5(16) - 10] - [0 - 0]

 = 40 - 10

 = 30

Therefore, the work done in moving the particle from the origin to x = 2 is 30 units of work.

Explanation:

Answer:

\(\boxed{V_{i} = 5\ m/s}\)

Explanation:

Given:

Acceleration = a = 0.75 m/s²

Time = t = ?

Final Velocity = \(V_{f}\) = 72 km/hr = 20 m/s

Required:

Initial Velocity = \(V_{i}\) = ?

Formula:

a = \(\frac{V_{f}-V_{i}}{t}\)

Solution:

For  \(V_{i}\)  the formula becomes:

\(V_{i} = V_{f}-at\)

\(V_{i}\)  = 20 - (0.75)(20)

\(V_{i}\)  = 20 - 15

\(V_{i}\)  = 5 m/s

In Case: If you want it in km/hr:

\(V_{i}\)  = 5 * 3.6

\(V_{i}\)  = 18 km/hr

Answer:

5 m/s

Explanation:

acceleration = 0.75 m/s²

time = 20 s

final velocity = 72 km/h = 20 m/s

initial velocity = ?

Apply formula for initial velocity.

\(u=-at+v\)

\(\sf a=acceleration\\t=time\\v=final \: velocity\\u=initial \: velocity\)

Solve for u.

\(u=-(0.75)(20)+ 20\)

\(u=-15+20\)

\(u= 5\)

B: q magnet or a magnetic field

In a between-groups design with between-groups df = 3 and within-groups df = 4, and an F ratio of 6.8, the researcher should compare the obtained F ratio to the critical F values at both alpha levels (.05 and .01).

When conducting a hypothesis test in a between-groups design with between-groups degrees of freedom (df) of 3 and within-groups df of 4, and given an F ratio of 6.8, the researcher needs to determine whether to reject or fail to reject the null hypothesis at a certain level of significance (alpha).

Therefore, the correct answer to the question is that the researcher should reject the null hypothesis if alpha is .05 but fail to reject it if alpha is .01. It is important to note that if alpha is set at a different level, the decision to reject or fail to reject the null hypothesis may change.

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Making a few assumptions like uniformity and flatness of the universe we have :

A. \((\frac{a}{a} )^{2} = \frac{8\pi gs+\pi }{3}\)

B. \(\frac{a}{a} = - \frac{4\pi G}{3} (S+3P)+\frac{\pi }{3}\)

where is 'a' is a scale factor which tells us how expanded the Universe is. And it's the first derivative gives the rate of expansion and its second derivative gives the acceleration of the universe.

So if G increases, due to the mass of neutrons. Then the acceleration would have a negative value which would mean slowing down.

All the above however does not consider dark energy, which would modify the equations. We still have to understand the nature of dark matter to be able to predict how much in the long run would gravity affect acceleration.

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The results of the coomassie-stained gel consist of different protein bands in each lane.

The Coomassie-stained gel gives a visual representation of the protein sample separation. The gel is made up of different lanes where each lane contains a different protein sample. The migration of protein in each lane is usually based on the size of the protein molecules. Hence, in each lane, different protein bands are visible.

The multiple or single bands in each lane depend on the types of proteins in the sample. If the sample consists of multiple proteins, then different bands will be visible in the lane. On the other hand, if the sample has only a single protein, then a single band will be visible. Therefore, coomassie-stained gel is used to separate the proteins and visualize them in different bands based on the molecular weight of the proteins.

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Answer:

... is called competition.

Explanation:

competition for same thing

The theoretical efficiency is greater than that of the actual efficiency of the engine. This is because heat engine always produces some waste heat.

The Second Law of Thermodynamics states that a heat engine cannot be 100% efficient. In practice, a heat engine is only 100% efficient when it is operating at about 30-50% efficiency.

If we were to multiply this by 100, we would get the efficiency as a percent: 49%. This is the theoretical maximum efficiency. If we were to actually build an engine, it would be less efficient than the theoretical engine. The theoretical engine that can achieve this theoretical maximum efficiency is called the Carnot Engine.

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If the applied voltage is polarised in the opposite direction (negative on red and positive on black), the metre will display "backwards."

Some devices may be electrically charged at all times if an outlet has reverse polarity. Electricity will flow to the switch in a properly connected outlet; with reversed polarity, it will be present in the item even when it is not switched on.Reverse polarity protection is an internal circuit that ensures the device is not destroyed if the polarity of the power source is reversed. The reverse polarity protection circuit disables power to the transmitter or transducer's sensitive electronic circuitry.If you reside in a house that has had amateur electrical work done, there's a strong chance you have some outlets with reversed polarity. That essentially means that some of your channels may surprise you. Uh oh! While not all shocks are lethal, they are all painful and unpleasant. Only a qualified electrical contractor in North Scottsdale, AZ can perform electrical repairs in your home.

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The ball is in the air for 0.05 seconds after it leaves the launcher. By analyzing the impulse experienced by the ball, we can determine the final velocity of the ball

To determine the time the ball is in the air after it leaves the launcher, we can use the concept of impulse. Impulse is defined as the product of force and time, and it is equal to the change in momentum of an object.

Impulse (J) = Force (F) * Time (Δt)

We know that the net force acting on the ball is 60 N and the time it is applied is 0.05 seconds. The mass of the ball is 0.3 kg.

The impulse can also be expressed as the change in momentum (Δp) of the ball:

Δp = m * Δv

Where:

m is the mass of the ball,

Δv is the change in velocity.

Since the ball starts from rest, the change in velocity (Δv) is the final velocity (v) of the ball after it leaves the launcher.

By rearranging the equation for impulse, we can solve for the final velocity:

Δv = J / m = F * Δt / m

= 60 N * 0.05 s / 0.3 kg

Simplifying the calculation:

Δv = 10 m/s

Now, to find the time the ball is in the air after it leaves the launcher, we divide the displacement of the ball by the final velocity.

The displacement of the ball is given by:

Δs = v * t

Since the initial velocity is 0 m/s and the final velocity is 10 m/s, the displacement is:

Δs = 10 m/s * t

We want to find the time (t) when the displacement is zero, as the ball reaches the highest point in its trajectory. Therefore, we set Δs = 0 and solve for t:

10 m/s * t = 0

This implies that the ball is in the air for 0.05 seconds after it leaves the launcher.

The ball remains in the air for 0.05 seconds after it leaves the launcher. By analyzing the impulse experienced by the ball, we can determine the final velocity of the ball and use it to find the time it takes for the ball to reach its maximum height. This calculation helps us understand the motion of objects under the influence of external forces and provides insights into projectile motion.

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Find the freezing point of the material and contrast it to that of other metals. Measure the metal's length and contrast it with the lengths of other metals. Also, contrast the metal's shape with those of other metals.

The air within the solar cooker receives energy from the water through the edges of the cook pot. The air outside solar cooker receives energy that is transferred from the gas within the solar cooker through sidewalls of the solar cooker.

Radiation is utilized to bake the s'mores in the hot cooker that is created in this exercise. When heat is transported without the presence of Sun and s'mores were in close proximity to one another  Electromagnetic waves that are passing through the air convey the heat.

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The frequency of the minute hand is 1/60 Hz. Given that the minute hand of a clock completes one revolution in one hour and there are 3,600 seconds in one hour.

To calculate the frequency of the minute hand: Frequency of the minute hand = No. of revolutions per secondFirstly, let us calculate the number of revolutions of the minute hand in one second.1 hour = 60 × 60 = 3600 secondsIn one hour, the minute hand completes 1 revolution. So, in 1 second, the minute hand completes 1/3600 of the revolution.Now, we can calculate the frequency of the minute hand.

Frequency of the minute hand = No. of revolutions per second Frequency of the minute hand = 1/3600 HzTo calculate the frequency of the minute hand, we can use the following steps: Step 1: Calculate the number of revolutions of the minute hand in one second.1 hour = 60 × 60 = 3600 seconds In one hour, the minute hand completes 1 revolution.

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We have that for the Question, it can be said that the amount by which the length of the stack decreases is

From the question we are told

A copper (Young's modulus 1.1 x 1011 N/m2) cylinder and a brass (Young's modulus 9.0 x 1010 N/m2) cylinder are stacked end to end, as in the drawing. Each cylinder has a radius of 0.24 cm.

A compressive force of F = 7900 N is applied to the right end of the brass cylinder. Find the amount by which the length of the stack decreases.

Generally the equation for copper cylinder   is mathematically given as

\(dl=\frac{Flo}{yA}\)

\(dl=\frac{7900*3*10^-^2}{1.1*10^{11}*\pi(0.24*10^{-2})^2}\)

\(dl=1.19064778*10^-^4\)

Generally the equation for brass cylinder   is mathematically given as

\(dl=\frac{7900*5*10^-^2}{9*10^{10}*\pi(0.24*10^{-2})^2}\)

\(dl=2.43*10^{-4}\)

Therefore Total change in length

\(dl'=1.191*10^-^4+(2.43*10^{-4})\)

\(dl'=3.621*10^{-4}m\)

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The correct statement summarizing the events in the early universe according to the Big Bang theory is option D.

After the forces of the cosmos came together, there was a time of inflation. Then subatomic matter and antimatter particles appeared, the majority of which annihilated to produce photons. Protons, neutrons, electrons, and neutrinos were among the particles that did not decay, though. During the first three minutes, protons and neutrons fused, revealing the universe's basic chemical make-up.

All of the fundamental forces of nature were combined in the early moments of the Big Bang. But the forces split into various interactions as the cosmos grew and contracted. This trend was accompanied by inflation, a rapid expansion. After inflation, a hot, thick soup of energy flooded the entire cosmos.

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The work done by friction for a 1.37kg book slides 1.26m along a level surface is -2.66J.

The work done by friction is given by the formula W = -f × d, where f is the force of friction and d is the distance traveled.

The force of friction can be calculated using the formula f = μ × N, where μ is the coefficient of friction and N is the normal force.

Since the surface is level, the normal force is equal to the weight of the book, N = m × g.

Thus, the force of friction is f = μ × m × g.

Plugging in the given values, f = 1.37kg × 9.81m/s² × 0.154 = 2.113N.

The work done by friction is then W = -f × d = -2.113N × 1.26m = -2.66J.

Therefore, the work done by friction is -2.66J.

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Eating less red meat so fewer cattle need to be raised would help reduce global warming.

The production of red meat, particularly beef, is a major contributor to greenhouse gas emissions. Cattle produce methane, a potent greenhouse gas, and the production of feed for cattle also requires large amounts of energy, water and land. Additionally, the clearing of forests for grazing land and feed production also contributes to carbon emissions.

Riding a bicycle rather than walking to school would also help reduce global warming because it would decrease the amount of CO2 emissions produced by cars and other vehicles.

Clearing more forests to produce more farmland and using more fertilizers to increase crop production would not help to reduce global warming, as the clearing of forests causes a release of stored carbon into the atmosphere and the use of fertilizers and pesticides also has an environmental impact.

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