Using the formula for the wave function given in Equation (9), ym (x,t) = Am cos(2fmt)cos(mx / L) show that the wave

function for a machine that is unclamped at both ends has antinodes at both ends.

Explanation:

see the attachment.. hope it will help you

Answer:

Pressure = 39200 N/m²

Explanation:

Given the following data;

Mass = 60 kg

Area = 150 cm²

Conversion:

1 centimeter square = 0.0001 meter square

150 centimeter square = 150 * 0.0001 = 0.015 m²

To find the pressure exerted on the ground by the person;

Mathematically, pressure is given by the formula;

\( Pressure = \frac {Force}{area} \)

First of all, we would determine the force exerted by the person.

Force = mass * acceleration due to gravity.

We know that acceleration due to gravity is equal to 9.8 m/s².

Substituting into the formula, we have;

Force = 60 * 9.8

Force = 588 Newton

Next, find the pressure;

\( Pressure = \frac {Force}{area} \)

Substituting into the formula, we have;

\( Pressure = \frac {588}{0.015} \)

Pressure = 39200 N/m²

Answer:

ok so first ur not a failure and its okay don't be so hard on ur self

It takes 0.58 seconds for the cargo to hit the ground and it travels 0 feet horizontally.

What is cargo?
Bulk goods transported by water, air, or land are referred to as cargo. In the language of economics, freight refers to cargo that is transported for profit at a freight rate. Originally referring to a shipload, the term "cargo" is now used to refer to all forms of freight, including that transported by rail, van, truck, or intermodal container. Because perishable inventory is always moving toward a final end-use, even when it is kept in cold storage or another similar climate-controlled facility, the term "cargo" is also used to refer to goods in the cold-chain. Freight is a term that is frequently used to refer to the flows of goods that are transported via any mode of transportation. In particular by shipping lines and logistics operators, multi-modal container units, designed even though reusable carriers to facilitate unitized handling of a goods contained, are also known as cargo.

To solve for the time it takes for the cargo to hit the ground, we need to solve for t. To do this, we'll use Equation 1 and set y = 0, since the cargo will hit the ground at y = 0.
0 - 16.1t2 + 4.5
16.1t2 = -4.5
t2 = -4.5 / 16.1
t = √(-4.5 / 16.1) ≈ 0.58 seconds

To solve for the horizontal distance the cargo travels, we'll use Equation 2, setting t = 0.58 seconds.

0.0047(x2) + 4.5
x2 = (4.5 - 4.5) / 0.0047
x2 = 0 / 0.0047
x = √(0 / 0.0047) ≈ 0 feet

Therefore, it takes 0.58 seconds for the cargo to hit the ground and it travels 0 feet horizontally.

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The kinetic energy of Shawn, if the he has a mass of 43. 8 kg is 14.18 J.

This is the energy of a body due to its motion.

To calculate Shawn's kinetic energy, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, Shawn's kinetic energy is 14.18 J.

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We can presume that an ambulance with its siren activated is rushing to get somewhere and, depending on the driving circumstances, is likely travelling between 30 and 150 km/h. The vehicle's speed can be determined using the Doppler effect equation. Let va represent the ambulance's maximum speed. The frequency, f'=(vvv a)f=560Hz, is audible as it gets closer.

Because the source is travelling in the direction of the observer, a negative sign appears. The ambulance is described as moving away by the opposite sign with source velocity magnitude. The Doppler shifted frequency as it recedes is f')=(vv+v0)f=480Hz.

The speed of the source can be calculated as va=v(f'f')f'+f'=(343ms)(560Hz480Hz)560Hz+480Hz=26.4ms by solving the second of these equations for f and substituting into the other.

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An lc circuit is built with a 40 mh inductor and an 12.0 pf capacitor. The capacitor voltage has its maximum value of 50 v at t=0s. The inductor current at t=0s is 0A.

An LC circuit is a type of resonant circuit that consists of an inductor (L) and a capacitor (C) connected in parallel. The circuit can store energy oscillating between the inductor and capacitor. At t=0s, the capacitor voltage has its maximum value of 50V, which means that the current through the capacitor is zero and the current through the inductor is also zero.

This is because at t=0s, the energy stored in the capacitor is at its maximum and there is no current flowing through the circuit. As time passes, the capacitor discharges and the current starts flowing through the inductor, which in turn stores energy in the magnetic field. The inductor current will reach its maximum value when the capacitor voltage reaches zero, at which point the energy will be stored in the magnetic field of the inductor. Therefore, at t=0s, the inductor current is 0A.

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Answer:

k. e. = 1/2 mv^2

1/2 * 1000 * (5)^2

1/2 * 1000 * 25

12500 joules

k. e. = 1/2 mv^2

1/2 * 1000 * (10)^2

1/2 * 1000 * 100

50000

change in k. e. = final - initial

50000 - 12500

= 37500 joules

hope it helps you

Answer:

The resultant force working on the helicopter can be calculated using the formula:

Resultant force = mass x acceleration

We know that the mass of the helicopter is 3000 kg and the acceleration is the acceleration due to gravity, which is 10 m/s^2.

The force of lift that opposes the weight of the helicopter is equal to:

Resultant force = 3000 kg x (10 m/s^2 + 25 m/s^2)

Resultant force = 3000 kg x 35 m/s^2 = 105,000 N

So the resultant force working on the helicopter is 105,000 N, this is the force that the helicopter's engines need to exert to overcome the force of gravity and maintain its constant speed of 25m/s.

if the primary winding has 50 coils and the secondary winding has 20 coils then the secondary  voltage will be equal to 2400V

Voltage is defined as the potential difference which apply a force on the charge to flow in the circuit.

This is a question on transformer. A transformer is a device used to step up or step down current and voltage. It consists of the primary windings and secondary windings. Each windings possesses both coil and amount of voltage across each coil.

The transformer formula is

\(\dfrac{V_S}{V_P}=\dfrac{N_S}{N_P}\)

Where;

Vs is the voltage across the secondary coil

Vp is the voltage across the primary coil

Ns is the number of turn in the primary coil

Np is the number of turns in the primary coil.

According to the question,

Vs is unknown

Vp is 6000V

Ns is 20turns

Np is 50turns

Substituting the values in the formula given

\(\dfrac{V_S}{6000}=\dfrac{20}{50}\)

Vs = 2400V

Therefore the secondary voltage is 2400V

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Answer:

2400

Explanation:

edge 2022

Answer:

Explanation:

The time taken can be found by using the formula

\( t = \frac{d}{v} \\ \)

d is the distance

v is the velocity

From the question we have

\(t = \frac{3.5}{4.8} \\ = 0.72916...\)

We have the final answer as

Hope this helps you

The hypothesis test is right-tailed. The P-value is 0.0329.Since the P-value is less than the significance level of 0.10, we should reject H0.

A hypothesis is an educated guess or a proposed explanation made on the basis of limited evidence as a starting point for further investigation. It is a statement that can be tested and is used as a foundation for experimentation, research, and data collection. Hypotheses are used to guide research and provide a framework for understanding the results of the research. Hypotheses are used to help determine what should be studied, how it should be studied, and what the results might be. They provide direction and focus to the research process and help to focus on the most important questions. A hypothesis is not a fact and can be disproved or accepted as new evidence is collected.

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Mast cell stabilizer is part of a treatment program for laboratory animal allergies.

What are animal allergies? Animal allergies occur when a person's immune system overreacts to an allergen in an animal's body. Pet allergies are more common, but anyone who works with or around laboratory animals may develop allergies to them. When a person is exposed to animal allergens, their immune system produces a response that causes allergic symptoms in the body.

The following are some of the treatment options for animal allergies:

Antihistamines: Antihistamines are used to alleviate allergic symptoms such as itching, sneezing, and runny nose. Antihistamines work by blocking histamine, a chemical produced by the body in response to an allergen.

Mast cell stabilizers: Mast cell stabilizers prevent the release of histamine and other chemicals that cause allergy symptoms. These drugs can take a few weeks to become fully effective.

Nasal corticosteroids: These nasal sprays relieve inflammation in the nasal passages, which can reduce the severity of allergy symptoms.

Allergy shots: Allergy shots, or immunotherapy, can be used to treat severe animal allergies. Immunotherapy works by exposing the patient to small amounts of the allergen over time, which can reduce the body's immune response to the allergen. Dilantin is an anticonvulsant medication that is used to treat seizures. It is not used in the treatment of animal allergies.

Therefore, Mast cell stabilizer is part of a treatment program for laboratory animal allergies.

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Answer: 480 N is required to maintain the arrangement .

Explanation:

Given, 320 N  force is required to hold 2 protons in a particular arrangement .

Then the force required to keep 1 proton in a particular arrangement = 320/2

= 160 N

Then if  a proton is replaced by an alpha particle , it is given that a alpha contains 2 protons , then we conclude that after replcament , the arrangement has 1 alpha and 1 proton = 3 protons

Then , the force exerted by 3 protons = 3×160 = 480 N

The force exerted by the arrangement , if one of the protons is replaced with alpha is 480 N

Answer:

1 ms-²

Explanation:

v = u + at

25 = 15 + a× 10

a= 1ms-²

Answer:

b decreases as a increases and c stays constant

It all depends on the definitions of a, b, and c, and the relationship among them. Your question doesn't give us any of this information.

International space station is the mission of NASA. It has launched 134 successful space missions.

International space station is a huge place in the space but in the close orbit with all possible facilities for astronauts , scientists and others

The National Aeronautics and Space Administration (NASA) is an acronym for the National Aeronautics as well as Space Administration. NASA was established as a division of the United States government on October 1, 1958. NASA is just in charge of all research and technology related to aviation and space in the United States.

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Answer:

2,800 n

Explanation:

hope this helps, have a nice day/night! :D

The force of 2812.5 N is being exerted by the chain.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of force is the location at which force is applied, and the direction in which the force is applied is known as the direction of the force.

Given that:

Mass of the  hunk of anorthosite moon rock : m = 500.0 kg.

Acceleration of the hunk: a = 4.0 m/s².

Acceleration due to gravity in moon = 1.625 m/s².

So, required force = 500.0(4.0 +1.625) n = 2812.5 N.

The force of 2812.5 N is being exerted by the chain.

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Answer:

Approximately \(7.2\; {\rm m\cdot s^{-1}}\) (rounded up), assuming that this circle is vertical and \(g = 9.81\; {\rm m\cdot s^{-2}}\).

Explanation:

Let \(v\) denote the tangential speed of the ball, and let \(r\) denote the radius of the circle. Since the ball is in a circular motion, the acceleration on this ball would be equal to the centripetal acceleration \(a = (v^{2} / r)\). The net force on this ball would be \(F_{\text{net}} = m\, a = (m\, v^{2} / r)\).

The net force on this ball is also the vector sum of the tension \(T\) in the rope and the weight of the ball \(m\, g\):

\(F_{\text{net}} = (\text{weight}) + T\).

\(T = F_{\text{net}} - (\text{weight})\).

Note that:

\(\| T \| = \|F_{\text{net}} - (\text{weight})\| \le \|F_{\text{net}} \| + \| (\text{weight})\|\).

In other words, the magnitude of tension \(T\) is at most equal to \(\|F_{\text{net}} \| + \| (\text{weight})\| = (m\, v^{2} / r) + (m\, g)\), which happens when weight and net force are in opposite directions.

When the speed of the ball is maximized, the magnitude of tension \(T\) would be at the largest possible value of \(130\; {\rm N}\). Rearrange the equation and solve for speed \(v\):

\(\displaystyle \frac{m\, v^{2}}{r} + m\, g = \|T\|\).

\(\begin{aligned}v^{2} = \frac{r}{m}\, (\|T \| - m\, g) = \frac{r\, \|T\|}{m} - r\, g\end{aligned}\).

\(\begin{aligned}v &= \sqrt{\frac{r\, \|T\|}{m} - r\, g} \\ &= \sqrt{\frac{(1.2)\, (130)}{2.5} - (1.2)\, (9.81)}\; {\rm m\cdot s^{-1}} \\ &\approx 7.2\; {\rm m\cdot s^{-1}}\end{aligned}\).

In physics, current refers to the flow of electric charge through a conducting medium, such as a wire. The answers are:

a) The end of the inductor connected to the positive terminal of the power supply or the source will be at a higher potential.

b) The end of the inductor connected to the negative terminal of the power supply or the source will be at a higher potential.

Electric current can be visualized as the movement of charged particles, typically electrons, in a circuit. When there is a potential difference, or voltage, applied across a conductor, such as a battery connected to a wire, the electric charges are pushed by the voltage and begin to flow. This flow of charges constitutes an electric current.

In part (a), where the current is increasing, the end of the inductor at the higher potential can be determined using Lenz's law. Lenz's law states that the induced electromotive force (EMF) in an inductor opposes the change in current through it.

When the current is increasing, the induced EMF in the inductor will try to oppose this increase. To achieve that, the end of the inductor where the potential is higher will be the one that is connected to the positive terminal of the power supply or the source driving the current.

Therefore, in part (a), the end of the inductor connected to the positive terminal of the power supply or the source will be at a higher potential.

In part (b) of the question, where the current is decreasing, the end of the inductor at the higher potential can be determined using the same logic. The induced EMF in the inductor will try to oppose the decrease in current. Consequently, the end of the inductor connected to the negative terminal of the power supply or the source will be at a higher potential.

Therefore, in part (b), the end of the inductor connected to the negative terminal of the power supply or the source will be at a higher potential.

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Answer:

The planet's mass and size determine the gravity of a planet

Explanation:

The smaller and less mass a planet has, the less gravitational pull it has on things and vice versa. The same can be applied with all living things, we all have an extremely small gravitational pull.

A concentration gradient is created when the concentration of a molecule or solute differs on either side of a cell membrane, and this difference drives the movement of molecules and solutes across the membrane. How do solutes and other substances move across the cell membrane? Molecules and ions can diffuse or move across a cell membrane from areas of high concentration to areas of low concentration, which is known as simple diffusion.

They can also be transported by transporters, which are membrane proteins, and the transporters can be passive or active carriers, depending on the energy requirements of the transporter. Active transport, which involves the expenditure of metabolic energy to drive solute transport across a membrane against the concentration gradient, is a type of active carrier. Facilitated diffusion occurs when a protein facilitates the movement of a solute down a concentration gradient; this process is similar to active transport but does not require metabolic energy.

Explanation of the movement of solutes across the cell membrane: During simple diffusion, the movement of solutes occurs across a membrane that has a concentration gradient. Because the membrane is selectively permeable, only certain molecules can move across it. Molecules that are small and uncharged can easily pass through the membrane, while larger or charged molecules are often blocked. Because the solute moves down a concentration gradient, it does not require energy, and it can continue to move across the membrane until the concentrations on both sides of the membrane are equal.

The movement of solutes in facilitated diffusion, which involves the movement of molecules through membrane channels or carrier proteins, is somewhat similar to simple diffusion. Carrier proteins, in particular, help to move molecules through the membrane by undergoing a change in shape as the molecules move across it.

Active transport, which involves the movement of molecules against a concentration gradient, is a process that requires energy. Energy is required for the solute to move across the membrane, and the energy can come from either ATP hydrolysis or the electrochemical gradient of the molecule. The process of active transport is essential for maintaining the balance of ions and molecules within a cell.

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Concentration gradient refers to the gradual variation in concentration of solutes or other substances in a solution that occurs in regions that are separated by a membrane or a barrier. Substances tend to move from an area of higher concentration to an area of lower concentration, down the gradient. This process is called diffusion.

Here's how it works:Substances in a high concentration move toward regions of lower concentration by crossing the membrane or barrier. This happens until the concentration of the substance is uniform throughout the solution.The rate of diffusion across the membrane is influenced by the concentration gradient. A steep gradient results in a faster rate of diffusion, while a shallow gradient results in a slower rate of diffusion.Substances can move across the cell membrane through different mechanisms, depending on their chemical and physical properties. Lipid-soluble substances can diffuse across the lipid bilayer of the membrane, while large and hydrophilic substances require specialized transport proteins to cross the membrane. For example, ions such as sodium, potassium, and calcium move across the membrane through ion channels, while glucose and amino acids move across through transporters.  Overall, the movement of solutes and other substances across the cell membrane is an important process that allows cells to maintain a balance of nutrients and other vital components within the cell.

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The statement that is true about solar system densities is The denser planets lie closer to the Sun while the farther one planets from the sun have lower densities.

Solar system comprises of the the planets, moon, stars, comets , smaller bodies and how they orbit around the sun.

Therefore, The statement that is true about solar system densities is The denser planets lie closer to the Sun.

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Answer:

B Is not a problem

But A is

Explanation:

its either he is long sighted

so he is able to read from far and not near so it's better he sees a doctor to get recommend glasses

The kinetic energy is 2.88 × 10-17 J and the velocity of the proton will be 180 m/s

The kinetic energy of the proton is given by

 KE = qV = (1.60217662 × 10-19 C) (360 N/C) (0.50 m)

= 2.88 × 10-17 J,  The velocity of the proton is given by:

 V = (360 N/C) (0.50 m) =0.360 x 0.50 = 0.180 m/s .

This means that after the proton has traveled 50 cm, it will have a kinetic energy of 2.88 × 10-17 J and a velocity of 180 m/s. This result is because the electric field is uniform and constant, and the proton is accelerated by the same amount throughout its journey. This means that the velocity and kinetic energy of the proton will increase linearly with the distance traveled. The electric field provides the proton with a constant acceleration, and as the proton travels further, it gains more kinetic energy and a higher velocity.

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Answer:

It would break because how fast and how tall the fall is because at a certain hight water can act like a solid and break your body/bones or you could die

its a do or die situation

Explanation:

Answer:

18 groups are in the modern periodic table

Answer:

There's 18 groups I'm pretty sure