In star clusters, the turnoff-point stars are giant stars fusing helium in their cores and then in their shells. Group of answer choices True False

Answer:

the answer is A

Explanation:

pH is a measure of how acidic/basic water

The rocket's initial upward acceleration is 17.06 m/s^2, A 1.7 x 10^4 kg rocket has a rocket motor that generates 2.9 x 10^5 N of thrust.

To find the rocket's initial upward acceleration, we can use Newton's second law of motion, which states that the net force acting on an object is equal to its mass multiplied by its acceleration:

F_net = m*a

here F_net is the net force, m is the mass of the object, and a is the acceleration.

In this case, the rocket motor generates a thrust force of 2.9 x 10^5 N in the upward direction, which is the net force acting on the rocket. The mass of the rocket is 1.7 x 10^4 kg.

Substituting these values into the equation, we get:

2.9 x 10^5 N = (1.7 x 10^4 kg) * a

Simplifying the expression, we get:

a = 2.9 x 10^5 N / (1.7 x 10^4 kg)

a = 17.06 m/s^2

Therefore, the rocket's initial upward acceleration is 17.06 m/s^2.

To know more about acceleration please refer: https://brainly.com/question/12550364

#SPJ4

Answer:

Reigon 1

Explanation:

It has the higest rate of landslides currently

A polynomial of degree 3 has at most three real roots, and a polynomial of degree n has at most n real roots.

(a) To show that a polynomial of degree 3 has at most three real roots, we can use the Fundamental Theorem of Algebra. According to this theorem, a polynomial of degree n has exactly n complex roots, counting multiplicity. Since we're dealing with a degree 3 polynomial, it can have at most three distinct complex roots.

Now, if all the roots of the polynomial are real, then we have exactly three real roots. However, if there are complex roots, they come in conjugate pairs. In other words, if a + bi is a root, where a and b are real numbers and i is the imaginary unit, then its conjugate a - bi is also a root. Since the degree 3 polynomial can have at most three distinct complex roots, this implies that it can have at most three real roots as well.

Therefore, we have shown that a polynomial of degree 3 has at most three real roots.

(b) To show that a polynomial of degree n has at most n real roots, we can use the same reasoning as in part (a) but generalize it for any degree n. According to the Fundamental Theorem of Algebra, a polynomial of degree n has exactly n complex roots, counting multiplicity.

Similar to part (a), if all the roots are real, then we have n real roots. If there are complex roots, they also come in conjugate pairs, meaning that each complex root has a conjugate that is also a root. Since the degree n polynomial can have at most n distinct complex roots, this implies that it can have at most n real roots as well.

Therefore, we have shown that a polynomial of degree n has at most n real roots.

To learn more about polynomial from the given link

https://brainly.com/question/29552443

#SPJ4

Answer:

using a seismograph

Explanation:

Answer:

Energy transformation, also known as energy conversion, is the process of changing energy from one form to another.

Answer:

HOPE THIS HELPS!!

Explanation:

Velocity is speed as well as distance mentioned.

The car is traveling at a constant speed of 20m/s but it may not be traveling in any particular direction. It would be taking many turns (left and right) or it would be moving in a circular manner.

So,it is at constant speed but not constant velocity.

Given that Two points in a two dimensional polar coordinate system are located at r1= 5.7 cm, θ1 = 26.4 degrees and r2 = 8.9 cm, θ2 = 53 degrees .

We have to find the distance between the two points measured in inches. To convert centimeters to inches, we need to divide by 2.54 as 1 inch = 2.54 cm. Therefore, 1 cm = 1/2.54 inch. To find the distance between two points in polar coordinates,

we use the formula given below: d = √(r1² + r2² - 2 r1 r2 cos(θ2 - θ1))Therefore, d = √((5.7)² + (8.9)² - 2 × 5.7 × 8.9 cos(53° - 26.4°))= √(32.49 + 79.21 - 83.1484)= √28.552≈ 5.34 inch (rounded off to two decimal places)Therefore, the distance between the two points is approximately 5.34 inches.

To know more about points visit:

https://brainly.com/question/30891638

#SPJ11

Answer:

Electron, proton and neutron

Explanation:

In each and every atom they are consist of electron, proton and neutron.

Answer:

240 miles

Explanation:

The car drove 60mph for 5 hours, so that's 60x5, which is 300. You then subtract 60 and get your answer: 240 miles.

If an electric field of 1.5 kv and a magnetic field of 0.425 t act on a moving electron to produce no net force. if the fields are perpendicular to each other then the electron's speed is 3529.4 m/s.

When an electric field and magnetic field act on a charged particle, the net force on the particle is given by the Lorentz force equation:

F = q(E + v x B)

where F is the net force, q is the charge of the particle, E is the electric field, v is the velocity of the particle, and B is the magnetic field.

In this problem, we are told that the net force on the electron is zero, so we can set F = 0:

0 = q(E + v x B)

Since the electric and magnetic fields are perpendicular to each other, the cross product v x B is a vector perpendicular to both v and B, and therefore is parallel to the electric field E. Therefore, we can simplify the equation to:

0 = qE

Solving for the velocity v, we get:

v = -E/B

Plugging in the values for the electric and magnetic fields, we get:

v = -(1.5 kV)/(0.425 T) = -3529.4 m/s

The negative sign indicates that the velocity of the electron is in the opposite direction to the electric field. Therefore, the electron's speed is 3529.4 m/s.

Learn more about the electric field:

brainly.com/question/8971780

#SPJ4

The work done by the attendant on the can of soup is 2.632 Joules or approximately 0.000629 kilocalories.

To calculate the work done by the supermarket checkout attendant on the can of soup, we can use the formula:

Work (W) = Force (F) × Distance (d)

Given the force is 4.70 N and the distance is 0.560 m, we can find the work done:

W = 4.70 N × 0.560 m = 2.632 J (joules)

Now, to convert joules to kilocalories, we'll use the conversion factor:

1 kcal = 4184 J

So, to find the work in kilocalories:

W (kcal) = 2.632 J / 4184 J/kcal ≈ 0.000629 kcal

Thus, the work done by the attendant on the can of soup is 2.632 Joules or approximately 0.000629 kilocalories.

To learn more about force, refer below:

https://brainly.com/question/13191643

#SPJ11

Answer:

\(5.8\; {\rm kg\cdot m \cdot s^{-1}}\).

Explanation:

If the mass of an object is \(m\) and the velocity of that object is \(v\), the linear momentum of that object would be \(m\, v\).

Assume that the initial velocity of the mass is positive (\(6.0\; {\rm m\cdot s^{-1}}\).) However, the direction of the velocity is reversed after the impact. Thus, the sign of the new velocity of the object would be negative- the opposite of that of the initial velocity. The new velocity would be \((-4.0\; {\rm m\cdot s^{-1}})\).

Thus, the change in the velocity of the mass would be:

\(\begin{aligned}& (\text{Change in Velocity}) \\ =\; & (\text{Final Velocity}) - (\text{Initial Velocity}) \\ =\; & (-4.0\; {\rm m\cdot s^{-1}}) - (6.0\; {\rm m\cdot s^{-1}}) \\ =\; & (-10\; {\rm m\cdot s^{-1})\end{aligned}\).

The change in the linear momentum of the mass would be:

\(\begin{aligned} & \text{change in momentum} \\ =\; & (\text{mass}) \times (\text{change in velocity}) \\ =\; & 0.58\; {\rm kg} \times (-10\; {\rm m\cdot s^{-1}}) \\ =\; & (-5.8\; {\rm kg \cdot m \cdot s^{-1}})\end{aligned}\).

Thus, the magnitude of the change of the linear momentum would be \(5.8\; {\rm kg \cdot m \cdot s^{-1}}\).

a concentric ring model in which social groupings are spatially organised in a hierarchy of rings. The upper class resides further away from the center, while the lower class is located closer to it.

The concentric ring model operates on the presumption that cultural content results from the incorporation of original ideas into the creation and/or presentation of music, text, and picture, and that these concepts originate in the fundamental artistic creativity spheres. Burgess' concentric ring model concept envisions growth occurring in a series of concentric rings surrounding the concentric ring model . According to Hoyt's sector model, economic expansion follows transportation corridors.

learn more about concentric ring model here:

https://brainly.com/question/13348343

#SPJ4

Answer:If you mean how much heat it can transfer as a thermal mass - in order to move heat from one place to another:

Typically the relationships are given by specific heat capacity (at different temperatures) and latent heats, plus the end-point temperatures to determine which of these conversion factors are relevant.

If time comes into it, you are looking at including shape and thermal conductivity at the minimum, so you really would need to be more specific

Explanation:

Answer:

30cm

Explanation:

Answer:

110

Explanation:

on accellus

Answer:

ELASTIC collision

kinetic energy is conservate

Explanation:

As the ball bounces to the same height, it can be stated that the impact with the floor is ELASTIC.

As the floor does not move the conservation of the moment

            po = pf

            -mv1 = m v2

- v1 = v2

So the speed with which it descends is equal to the speed with which it rises

Therefore the kinetic energy of the ball before and after the collision is the same

Answer:

CORRECT (SELECTED)

It is elastic since kinetic energy was conserved.

Explanation:

Answi am sorry but i do not know the answer

Explanation:

The waves that have a motion similar to S waves, but in a horizontal plane parallel to Earth's surface, are called Love waves.

Love waves are a type of surface wave that occur during an earthquake or seismic event. They are named after A.E.H. Love, a British mathematician who studied the mathematical properties of these waves. Love waves propagate along the Earth's surface and cause horizontal shearing motions in the ground. They are characterized by their side-to-side motion, with particle displacement occurring in a horizontal plane parallel to the Earth's surface.

Love waves have a slower velocity compared to primary waves (P waves) and secondary waves (S waves) but faster than Rayleigh waves. They are usually more destructive and responsible for the horizontal shaking experienced during an earthquake. Because of their horizontal motion and wavelength, Love waves are particularly damaging to buildings and structures that are not well-equipped to withstand lateral forces. Seismic engineers study Love waves to better understand their behavior and design structures that can withstand their effects.

Learn more about wavelength here

https://brainly.com/question/31333656

#SPJ11

Richard C. Carrington is the astronomer who first detected the presence of a wind of particles coming from the Sun.

Astronomers first detected the presence of a wind of particles coming from the Sun by noting the wind's direction in the tail of the comet. Early astronomers used to rely on normal eyes for observing such bodies. They studied the surface of the Sun by studying the different wavelengths of light reflected from the surface of the Sun to the corona of the eyes. By studying the effect of wind on the tail of the comet, the presence of a wind of particles that comes from the Sun can be detected. This was studied through an experiment carried out by Richard C. Carrington.

For further learning about comets, refer to the link: https://brainly.com/question/28543341

#SPJ4

The reason why a bus resists changes in its motion more than a motorcycle is because the bus has more mass. So, option C is the correct answer.

What is the meaning of mass? Mass is defined as the amount of matter present in an object, which is expressed in kilograms (SI units). It is distinct from weight, which is the force exerted on the object due to gravity. Inertia, which is an object's ability to resist changes in motion, is directly related to mass. As mass increases, so does the amount of inertia of an object. As a result, a bus, which has more mass than a motorcycle, will have more inertia and will resist changes in its motion more than a motorcycle. This is why buses require more force to move than motorcycles, and why they take longer to stop once they're in motion.

The correct option is C.

For more question motion

https://brainly.com/question/26083484

#SPJ8

Answer: I hope you find it useful

Explanation: Group 2 elements have two valence electrons. The two valence electrons are easily lost in the formation of chemical bonds. Once the two electrons are lost, the atom then has a full outer shell and is therefore more stable.

so,  if an atom has valency 2 , then it means that the atom can combine with 2 other atoms .

The term impulse refers to the relationship between force and time. It can be defined as a product of time and force. Thus, option C is correct.

The impulse is a common relation between force and time for a certain period of time on which the force is applied. In other words, the impulse can also be determined as the change in momentum of an object is equal to the impulse applied to it, according to Newton's second law.

This change in momentum can be deciphered according to the moment of the object. So, the momentum is defined as the product of mass of object and its velocity.

To learn more about Impulse

https://brainly.com/question/30466819

#SPJ4

The complete question is:

what does the term impulse refer to?

a. the relationship between acceleration and velocity

b. the relationship between force and velocity

c. the relationship between force and time

d. the relationship between power and velocity

The total momentum of the carts after the collision is –16 kg · m/s. The momentum of an object is given by the product of its mass and velocity.

The momentum of an object is given by the product of its mass and velocity. In this case, we know the momentum of each cart before the collision, but we need to use the law of conservation of momentum to find the total momentum of the carts after the collision. The law of conservation of momentum states that the total momentum of a system remains constant if there is no external force acting on the system. In this case, there is no external force acting on the carts, so the total momentum of the carts before the collision is equal to the total momentum of the carts after the collision. We can use the law of conservation of momentum to set up an equation:

Total momentum before collision = Total momentum after collision

(–6 kg · m/s) + (10 kg · m/s) = Total momentum after collision

Total momentum after collision = (–6 kg · m/s) + (10 kg · m/s)

Total momentum after collision = 4 kg · m/s

Therefore, the total momentum of the carts after the collision is 4 kg · m/s,

However, we need to note that the question is asking for the total momentum of the carts after the collision in terms of the momentum of cart 1 and cart 2, so we need to subtract the momentum of cart 2 from the momentum of cart 1 to get the total momentum of the carts after the collision:

Total momentum after collision = Momentum of cart 1 after collision

Momentum of cart 2 after collision

Total momentum after collision = (–6 kg · m/s) – (10 kg · m/s)

Total momentum after collision = –16 kg · m/s

Therefore, the answer is –16 kg · m/s,

To know more about velocity visit:

brainly.com/question/30559316

#SPJ11

The total momentum of the carts after the collision is -16 kg · m/s. The carts collide and bounce apart, with Cart 1 having a momentum of -6 kg · m/s and Cart 2 having a momentum of 10 kg · m/s before the collision. After the collision, the momentum of the two carts is combined to give a total momentum of -16 kg · m/s.

In more detail, momentum is a vector quantity that represents the motion of an object and is calculated by multiplying its mass and velocity. When two objects collide, the total momentum before the collision is equal to the total momentum after the collision, assuming no external forces are involved. In this case, Cart 1 has a momentum of -6 kg · m/s, indicating it is moving in the opposite direction with respect to a chosen positive direction. Cart 2 has a momentum of 10 kg · m/s, indicating it is moving in the positive direction. After the collision, the carts bounce apart, resulting in a total momentum of -16 kg · m/s, with the negative sign indicating the direction opposite to the chosen positive direction.

Mathematically, we can express the total momentum of the carts after the collision as follows:

\(\[ \text{Total momentum} = \text{Momentum of Cart 1} + \text{Momentum of Cart 2} = -6 \, \text{kg} \cdot \text{m/s} + 10 \, \text{kg} \cdot \text{m/s} = -16 \, \text{kg} \cdot \text{m/s} \]\)

To learn more about momentum refer:

https://brainly.com/question/2193212

#SPJ11

Sure, I can help you with that! To start, we need to know the formula for calculating the current gain β of an NPN transistor:

β = IC / IB

where IC is the collector current and IB is the base current. We also know that α = 0.9934, which is the current gain due to the transistor's internal construction.

a) To calculate β, we can use the formula and the given values:

β = IC / IB
β = α / (1 - α) * IB
β = 0.9934 / (1 - 0.9934) * 25μA
β ≈ 375.67

Therefore, the current gain β is approximately 375.67.

b) To calculate the collector current IC, we can use the formula:

IC = β * IB
IC = 375.67 * 25μA
IC ≈ 9.39mA

Therefore, the collector current IC is approximately 9.39mA.

c) To calculate the emitter current IE, we can use Kirchhoff's current law, which states that the sum of the currents entering a junction is equal to the sum of the currents leaving the junction:

IE = IC + IB
IE = 9.39mA + 25μA
IE ≈ 9.41mA

Therefore, the emitter current IE is approximately 9.41mA.

I hope that helps! Let me know if you have any other questions.

Learn more about transistor here:

https://brainly.com/question/30663677

#SPJ11

Answer:

A I think.

Hope it helps and pls give me brain list

Explanation:

the apparent weight of woman in the car as she rides over the hump is   \(\frac{mv^2}{R}\).

The forces acting on the automobile in a vertical direction are depicted in the free-body figure below. Then, Newton's second law provides

The behavior of things is predicted by Newton's first rule of motion when all external forces are equal. According to the first law, sometimes known as the law of inertia, an object's acceleration will be zero if the forces operating on it are balanced. When all forces are balanced, an object is said to be in equilibrium and won't accelerate. Newton postulated that an item will only accelerate in the presence of a net or unbalanced force. An object will accelerate if there is an imbalanced force present, altering its direction, speed, or both.

∑\(F_y\) =\(ma_y=\frac{mv^2}{R}\)

mg-n = \(\frac{mv^2}{R}\)

n=mg- \(\frac{mv^2}{R}\)

(b) If n equals 0, then the apparent weight is

mg =  \(\frac{mv^2}{R}\)

So, v = \(\sqrt{gR}\)

The automobile can go at a greater speed without leaving the road if the bump has a wider radius and is more gently bent. The square root of the radius determines how fast this speed is.

Learn more about apparent weight

brainly.com/question/14323035

#SPJ4