what is measurement ?​

This statement is partially correct. It takes less and less time to fuse heavier elements up to iron inside a high-mass star, but beyond iron, fusion requires energy instead of releasing energy and is not sustainable.

It takes less and less time to fuse heavier and heavier elements inside a high mass star. Iron is the most stably bonded atomic nucleus. When a stellar iron core collapses, large numbers of neutrinos are formed, and then: they immediately pass through the core and escape to space.

Higher mass stars will switch from helium to carbon burning and extend their lifetimes. Even higher mass stars will burn neon after carbon is used up. However, once iron is reached, fusion is halted since iron is so tightly bound that no energy can be extracted by fusion

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Answer:

the answer to your question will be D

Explanation:

5 N* 3S =3.25

Ohm's Law relates the following: volts, amperes, and resistance. Ohm's Law relates the following: volts, amperes, and resistance.

Ohm's Law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. The formula for Ohm's Law is: V = IR.

In simpler terms, this means that if you increase the voltage, the current will also increase, but if you increase the resistance, the current will decrease. It can be mathematically expressed as I = V/R, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms. This relationship is extremely important in understanding and designing electrical circuits. I hope this long answer helps to explain Ohm's Law!

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The speed of light from the source in the spacecraft's frame of reference is given by the formula Ux = Ux+v/C2+2Uxv/C2. The pace at which an object's position changes in relation to a frame of reference.

And is a result of time. An object's speed and direction of motion are specified by its velocity. A crucial idea in kinematics is velocity. Two different categories of frame of reference are as follows: An object that is fixed or moving at a constant speed is said to have an inertial frame of reference. The First Law of Motion of Newton is directly relevant in this frame. The frame of reference refers to the context in which an observer is placed when recording data.

Ux = Ux+v/C^2+Uxv/C^2

here, c =c/2

Ux = Ux+v/C^2+2Uxv/C^2

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Answer:

Explanation:

The velocity of the car can be found by using the formula

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

d is the distance

t is the time taken

From the question we have

\(v = \frac{400}{16} \\ \)

We have the final answer as

Hope this helps you

Answer:

We can know if we use scientific knowledge like researching exploring things in your environment

Explanation:

scientific guess also none has hypothesis

Answer:

C. There was no gunpowder residue found on the suspects hands

Explanation:

based on real life

assassination of Israeli Prime Minister Yitzhak Rabin. On November 4, 1995, Rabin was shot and killed by a Jewish extremist named Yigal Amir

Yigal Amir able to get past security and approach Rabin at the end of a peace rally in Tel Aviv. Amir shot Rabin in the chest and the headheadhead

recently ex Prime Minister of Japan Shinzo Abe was assassinated in public

    Gunpowder residue (GPR) is a critical piece of forensic evidence in shooting incidents, as it can provide information on the distance between the muzzle of the gun and the target at the time of firing. If there is no GPR found on the suspect's hands, it could indicate that the suspect did not fire the gun or that they wore gloves when firing the weapon, which would make it difficult to link the suspect to the shooting.

    Therefore, the absence of GPR on the suspect's hands would suggest that investigators need to consider alternative hypotheses and explore other lines of inquiry to determine who shot the Prime Minister.

There have been several prime ministers who have been shot in history. Here

are some examples:

1. Spencer Perceval, the Prime Minister of the United Kingdom, was

assassinated on May 11, 1812, by John Bellingham.

2. Jaime Roldós Aguilera, the President of Ecuador who held the position of both president and prime minister, was killed on May 24, 1981, in a plane

crash that is believed to have been caused by a bomb.

3. Luis Carrero Blanco, who served as the Prime Minister of Spain from June 1973 until his assassination on December 20, 1973, by the Basque

separatist group ETA.

4. Mahatma Gandhi, who served as the Prime Minister of India, was

assassinated on January 30, 1948, by Nathuram Godse, a Hindu

nationalist.

5. Olof Palme, who served as the Prime Minister of Sweden, was assassinated on February 28, 1986, in Stockholm.

6. Aldo Moro, who served as the Prime Minister of Italy, was kidnapped on

March 16, 1978, by the Red Brigades and later killed.

chatgpt

Answer:

The answer is

Explanation:

The momentum of an object when given it's mass and velocity can be found by using the formula

From the question

velocity = 2.2 m/s

mass = 72 kg

The momentum is

momentum = 2.2 × 72

We have the final answer as

Hope this helps you

Answer:

The resultant displacement is 140 cm

Explanation:

say first displacement d₁ is 60 cm

and second displacement d₂ is 80 cm

Resultant displacement = d₁ + d₂

= 60 + 80

= 140 cm

Answer:

Explanation:

To solve this problem it will be necessary to apply the interference principle.

Under this principle interference is understood as a phenomenon in which two or more waves overlap to form a resulting wave of greater, lesser or equal amplitude. In this case, if both are at the same point, the result of the total displacement will be the sum of the individual displacements, therefore

\(x = \sum h_i\\\\x = 60cm + 80cm\\\\x =140cm\)

Answer:

Energy implies as the object’s capability to perform work. It is something that cannot be created or destroyed but can only be transformed. An object loses its energy, when it performs work, whereas it gains energy when the work is performed on it. Energy is broadly classified as kinetic energy and potential energy. While kinetic energy is the energy which an object contains because of a particular motion.

On the other hand, potential energy is the stored energy, because of its state of rest. As both the two forms of energy are measured in joules, people get easily confused between these two. So, take a read of the article which will help you to understand the differences between kinetic and potential energy.

Explanation:

Hope this helps - Good luck ^w

Answer:

Energy stored in an object due to its position is Potential Energy. · Energy that a moving object has due to its motion is Kinetic Energy.

Explanation:

a. From the positive plate towards the negative plate.

b. The positive point experiences a force directed opposite to the electric field vector, and the negative point experiences in the same direction.

c. The positive point charge is positive, while the negative point charge is zero.

d. The positive charge decreases as it moves towards the negative plate, while the negative charge remains constant.

a. Inside a parallel plate capacitor, the electric field vector is directed from the positive plate toward the negative plate. This field configuration arises due to the accumulation of a positive charge on the positive plate and an equal amount of negative charge on the negative plate.

The electric field vector lines are parallel and uniformly distributed between the plates.

b. The forces acting on the charges can be determined using the equation F = qE, where F is the force, q is the charge, and E is the electric field. The positive point charge will experience a force opposite to the electric field vector since it carries a positive charge.

Therefore, the force on the positive point charge will be directed toward the positive plate. The negative point charge, carrying a negative charge, will experience a force in the same direction as the electric field vector, towards the negative plate.

c. The potential energy (PE) of a point charge in an electric field can be calculated using the equation PE = qV, where q is the charge and V is the electric potential. In this scenario, the potential energy of the positive point charge will be positive.

This is because the positive point charge is moving from a lower potential (negative plate) to a higher potential (positive plate). On the other hand, the potential energy of the negative point charge is zero, as it is chosen as the zero reference point for potential energy.

In summary, inside a parallel plate capacitor, the electric field vector points from the positive plate to the negative plate. The positive point charge experiences a force towards the positive plate, while the negative point charge experiences a force towards the negative plate.

The potential energy of the positive point charge is positive, indicating a higher potential at the positive plate, while the potential energy of the negative point charge is zero, chosen as the reference point.

As the positive point charge moves towards the negative plate, its potential energy decreases, while the potential energy of the negative charge remains constant.

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The angle between the proton's velocity and the magnetic field is approximately 54.8 degrees.

To find the angle between the proton's velocity and the magnetic field, we can use the formula for the magnetic force experienced by a moving charged particle:

F = q * v * B * sin(θ)

where:

F is the magnitude of the magnetic force,

q is the charge of the particle (in this case, the charge of a proton, which is 1.6 x \(10^{-19}\)C),

v is the magnitude of the velocity of the proton,

B is the magnitude of the magnetic field, and

θ is the angle between the velocity and the magnetic field.

Given that the magnitude of the magnetic force (F) is 8.20 x \(10^{13}\) N, the charge of a proton (q) is 1.6 x \(10^{-19}\) C, the magnitude of the proton's velocity (v) is 4.00 x \(10^6\)m/s, and the magnitude of the magnetic field (B) is 1.70 T, we can rearrange the formula to solve for the angle (θ).

sin(θ) = F / (q * v * B)

sin(θ) = (8.20 x \(10^{13}\) N) / ((1.6 x \(10^{-19}\) C) * (4.00 x \(10^6\)m/s) * (1.70 T))

Using a calculator, we can evaluate the right side of the equation:

sin(θ) ≈ 0.805

Now, we can find the angle (θ) by taking the inverse sine (arcsin) of the value:

θ ≈ arcsin(0.805)

Using a calculator, we find:

θ ≈ 54.8 degrees

Therefore, the angle between the proton's velocity and the magnetic field is approximately 54.8 degree

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Answer:

7: B:

8: A:

9: D:

Explanation:

HOPE IT HELPS YOU!!

Answer:

7. (C) 12 m/s

8. (D) 44.1 m

9. (C) 9.8 m/s^2

Explanation:

8. y = -(1/2)gt^2

= -(1/2)(9.8 m/s^2)(3 s)^2

= -44.1 m

This means the ball traveled 44.1 vertically downwards.

Answer:

2730.304 KJ

Explanation:

 How much heat is required to convert 0.8 kg of ice at  -35°C into steam at 100 C?

Given that:

mass of ice (m) = 0.8 kg = 800 g

Initial temperature (\(T_i\)) = -35°C = 238 K

final temperature (\(T_n\))= 100°C = 373 K

Specific heat of ice (\(S_i\)) = 2.108 J/g.K

Specific heat of water (\(S_w\)) = 4.18 J/g.K

Latent heat of fusion (\(L_f\)) = 334 J/g.

Latent heat of vaporization (\(L_v\)) = 2230 J/g.

\(\Delta T=T_n-T_i=373-238=135K\)

Total heat (Q) required to increase the temperature of ice from the initial temperature of 238K to final temperature of 373 K is given by the equation:

\(Q=m\Delta TS_i+m\Delta TS_w+mL_f+mL_v\\Q=800(135)*2.108+800(135)*4.18+800*334+800*2230\\Q=227664+451440+267200+1784000=2730304J\\Q=2703.304KJ\)

The radius of a standard rate turn for a plane moving at 240 m/s  is approximately 933 meters.

A standard rate turn in aviation refers to a turn in which an aircraft completes a full 360-degree rotation in 2 minutes, resulting in an angular speed of 3 degrees per second (180 degrees per minute). To calculate the radius of a standard rate turn for a plane moving at 240 m/s, we can use the formula:

Radius = V / (G × Tan(Bank Angle))

where:
- V is the velocity of the plane (240 m/s)
- G is the gravitational constant (approximately 9.81 m/s²)
- Bank Angle is the angle at which the aircraft is tilted during the turn.

First, we need to find the bank angle. Since we know that the angular speed is 3 degrees per second, we can use the following formula to find the bank angle:

Bank Angle = Arc Tan((V² × Angular Speed) / (G × 180))

Bank Angle = Arc Tan((240² × 3) / (9.81 × 180))
Bank Angle ≈ 14.7 degrees

Now that we have the bank angle, we can calculate the radius of the turn:

Radius = 240 / (9.81 × Tan(14.7))
Radius ≈ 933 meters

So, the radius of a standard rate turn for a plane moving at 240 m/s is approximately 933 meters.

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All millisecond pulsars are now, or once were, members of binary-star systems. This statement is option a. true

Millisecond pulsars are now, or once were, members of binary-star systems. They are highly-magnetized, fast-spinning neutron stars formed through the transfer of mass from a companion star in a binary system. This transfer of mass leads to an increase in the pulsar's rotation speed, resulting in very rapid rotation periods, typically in the range of milliseconds.

Highly magnetised neutron stars known as pulsars produce electromagnetic radiation beams along their magnetic axes as they rotate. They were initially believed to be artificial signals from extraterrestrial intelligence when they were first found in 1967 by Jocelyn Bell Burnell and Antony Hewish. Pulsars can rotate up to several hundred times per second and release radiation at a variety of wavelengths, including radio waves and gamma rays. A number of astrophysical phenomena, including the behaviour of matter under extreme circumstances, the workings of gravity, and the makeup of the Milky Way galaxy, can be studied using the radiation emitted by pulsars.

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Answer:

In general there are three sub-segments of "alternative" energy investment: solar energy, wind energy and hybrid electric vehicles

Answer:

a) λ = 1.12 m

b) f = 5.41 Hz

c) v = 154.54 m/s

d) A = 0.22m

e)

\(v_D_{max}=7.48\frac{m}{s}\\\\v_D_{min}=-7.48\frac{m}{s}\\\\\)

Explanation:

You have the following equation for a wave traveling on a cord:

\(D=0.22sin(5.6x+34t)\)     (1)

The general expression for a wave is given by:

\(D=Asin(kx-\omega t)\)    (2)

By comparing the equation (1) and (2) you have:

A: amplitude of the wave = 0.22m

k: wave number = 5.6 m^-1

w: angular velocity = 34 rad/s

a) The wavelength is given by substitution in the following expression:

\(\lambda=\frac{2\pi}{k}=\frac{2\pi}{5.6m^{-1}}=1.12m\)

b) The frequency is:

\(f=\frac{\omega}{2\pi}=\frac{34s^{-1}}{2\pi}=5.41Hz\)

c) The velocity of the wave is:

\(v=\frac{\omega}{k}=\frac{34s^{-1}}{0.22m^{-1}}=154.54\frac{m}{s}\)

d) The amplitude is 0.22m

e) To calculate the maximum and minimum speed of the particles you obtain the derivative of  the equation of the wave, in time:

\(v_D=\frac{dD}{dt}=(0.22)(34)cos(5.6x+34t)\\\\v_D=7.48cos(5.6x+34t)\)

cos function has a minimum value -1 and maximum +1. Then, you obtain for maximum and minimum velocity:

\(v_D_{max}=7.48\frac{m}{s}\\\\v_D_{min}=-7.48\frac{m}{s}\\\\\)

Answer:

It add strength to the metal, along with other enhanced chemical properties. Hardness, machinability, and corrosion resistance are other properties that can be added or enhanced by creating an alloy.

I hope my answer helps you.

True, if a body starts with zero velocity and ends with zero velocity, then the total change in momentum is zero.


1. Momentum is the product of an object's mass (m) and its velocity (v). It can be represented by the equation: momentum = m * v.
2. If an object starts with zero velocity (v_initial = 0), its initial momentum will be: momentum_initial = m * 0 = 0.
3. Similarly, if an object ends with zero velocity (v_final = 0), its final momentum will be: momentum_final = m * 0 = 0.
4. Change in momentum is the difference between final momentum and initial momentum: Δmomentum = momentum_final - momentum_initial.
5. Since both initial and final momenta are zero, the total change in momentum is: Δmomentum = 0 - 0 = 0.

Therefore, it is true that if a body starts with zero velocity and ends with zero velocity, the total change in momentum is zero.

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Answer: pretty sure 14 pounds

Explanation:

Answer:

$0.52

Explanation:

Assuming 1 month = 30 days:

110 V × 0.33 A × 6 h × 30 = 6534 Wh

6.534 kWh × $0.08/kWh = $0.52

Answer:

please thanks

àaaaaaaaàaàaaa

Answer:

C

Explanation:

You don't want to buy a 1000 dollar credit card.

The features are useful, like the little sync feature to automatically pay is awesome.

The plan of use for the card is important

the card aesthetic doesn't affect the card in any way, just your personal preference

Answer:

C

Explanation:

The gravitational force of the Sun increased

If  the mass of the Sun increased during the formation of the solar system, the gravitational force of the Sun increased.

A massive concentration of interstellar gas and dust formed a molecular cloud that would become the sun's birthplace before the solar system existed. Cold temperatures caused the gas to clump together, increasing its density steadily.

Gravity continued to collapse the material onto the developing solar system, resulting in the formation of a star and a disc of material from which the planets would form. According to NASA, the newborn sun eventually accounted for more than 99% of the mass of the solar system (opens in new tab).

When the pressure inside the star became so high that fusion occurred, converting hydrogen to helium, the star began to blast a stellar wind, which helped clear out debris and prevented it from falling inward.

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The value of mass X will be 30kg if the three masses of people are 50 kg, X kg, and 15 Kg.

According to the principle of moments, the total sum of the clockwise and anticlockwise moments are equal when the system is in equilibrium. A system is considered to be in equilibrium when it is stable or in balance since all of the forces operating on it balance each other out.

Applying the principle of moment

Sum of anticlockwise moment=sum of clockwise moment

50 × 1.5 = X × 1.5 + 2 × 15

75 = 1.5 X + 30

75 - 30 = 1.5X

45 = 1.5X

X = 45/1,5

X = 30 kg

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The energy transferred to the system is equal to the work done. For the endothermic process work done is negative. The power of the system is the product of work and time. Hence, the power is 315000 watt.

Endothermic reactions are those which absorbs energy into the system. Thus the surrounding temperature gets decreased.

The calorimetric equation connecting the heat transferred q, with the specific heat, mass and temperature difference is  written as:

q = m c ΔT

Here, the heat energy transferred is equal to the work done on the system. Hence W = - 1050 J

Power of the system is the product of work done and time taken for the energy transfer.

Power = W.dt

w = - 1050 J

t = 5 min = 300 s

Then P = 1050 J × 300 = 315000 watt.

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