When thermal energy is applied to water, the water’s temperature rises until 100°C and then stays the same which is the best explanation

A.) When the water reaches 100°C, the flow of thermal energy reversed maintains an equilibrium.

B.) When the water reaches 100°C, it can no longer absorb thermal energy.

C.) When the water reaches 100°C, any increases in thermal energy goes to breaking the bonds between water molecules as the water boils and becomes steam.

D) When the water reaches 100°C, any increase in thermal energy becomes potential energy

An airplane is flying with a velocity of 42 m/s at a standard altitude of 3 km. At a point on the wing, the airflow velocity is 88 m/s. The  pressure at the point on the wing is  \(P = 6.96 * 10^4 N/m^2\).

To calculate the pressure at a point on the wing, we can use Bernoulli's equation, which relates the pressure, velocity, and density of a fluid in steady, incompressible flow.

The equation is as follows:

P + 1/2 * ρ * \(V^2\) = constant

where P is the pressure, ρ is the density of the fluid, and V is the velocity of the fluid.

Given:

\(P_1 = 7.01 * 10^4 N/m^2\) (pressure at standard altitude)

ρ = \(0.909 kg/m^3\) (density of the fluid)

\(V_1 = 42 m/s\) (velocity of the airplane)

\(V_2 = 88 m/s\) (velocity at the point on the wing)

To find the pressure at the point on the wing, we can use Bernoulli's equation for the standard altitude and the point on the wing, and then solve for P:

\(P_1 + 1/2\) * ρ * \(V_1^2\) = \(P + 1/2\)  * ρ * \(V_2^2\)

Substituting the given values:

\(7.01 * 10^4 + 1/2 * 0.909 * 42^2 = P + 1/2 * 0.909 * 88^2\)

Simplifying the equation:

\(7.01 × 10^4 + 1/2 * 0.909 * 1764 = P + 1/2 * 0.909 * 7744\)

7.01 × 10^4 + 804.906 = P + 3526.242

\(P + 4329.148 = 7.01 *10^4\)

\(P = 7.01 * 10^4 - 4329.148\)

\(P = 6.96 * 10^4 N/m^2\)

Therefore, the pressure at the point on the wing is \(P = 6.96 * 10^4 N/m^2\)

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The angular speed of the bicycle wheels is 3.03 radians per second.

To find the angular speed of the bicycle wheels, we can use the formula:

angular speed = linear speed / radius

First, we need to convert the radius from centimeters to meters:

66 cm = 0.66 m

Now we can plug in the given values:

angular speed = 2.0 m/s / 0.66 m
angular speed = 3.03 rad/s

Therefore, the angular speed of the bicycle wheels is 3.03 radians per second. This means that each wheel is rotating at a rate of 3.03 revolutions per second. It's important to note that the wheels do not slip, meaning that their point of contact with the ground is always stationary relative to the ground. This allows us to use the formula for the angular speed of the wheels based on their linear speed and radius.

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Answer:

The second type of body wave is the S wave or secondary wave, which is the second wave you feel in an earthquake. An S wave is slower than a P wave and can only move through solid rock, not through any liquid medium.

Answer:

B) t = 1.83 [s]

A) y = 16.51 [m]

Explanation:

To solve this problem we must use the following equation of kinematics.

\(v_{f} =v_{o} -g*t\)

where:

Vf = final velocity = 0

Vo = initial velocity = 18 [m/s]

g = gravity acceleration = 9.81 [m/s²]

t = time [s]

Note: the negative sign in the above equation means that the acceleration of gravity is acting in the opposite direction to the motion.

A) The maximum height is reached when the final velocity of the ball is zero.

0 = 18 - (9.81*t)

9.81*t = 18

t = 18/9.81

t = 1.83 [s], we found the answer for B.

Now using the following equation.

\(y = y_{o} + v_{o}*t - 0.5*g*t^{2}\\\)

where:

y = elevation [m]

Yo = initial elevation = 0

y = 18*(1.83) - 0.5*9.81*(1.83)²

y = 16.51 [m]

Answer:

When we burn wood we are releasing solar energy, in the form of heat, that has been stored in the wood as chemical energy. The process of photosynthesis converted solar energy, water and carbon dioxide into oxygen and the organic molecules that form the wood, half the weight of which is carbon.

Explanation:

We can solve for various parameters such as current, voltage, resistance, and power, and optimize the performance of the circuit.

Starting with the equation for power:

P = IV

We can rearrange this equation to solve for either I or V, depending on what we need:

I = P/V

V = P/I

Now, let's look at the equation for resistance:

R = V/I

We can rearrange this equation to solve for either V or I:

V = IR

I = V/R

So the two equations that can be derived from P = IV and R = V/I are:

I = P/V

V = P/I

and

V = IR

I = V/R

These equations are fundamental to understanding the behavior of electric circuits and are used in circuit analysis and design. By manipulating these equations, we can solve for various parameters such as current, voltage, resistance, and power, and optimize the performance of the circuit.

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Magnetic field will be equal to 0.269 T

A magnetic field, a vector field that defines the magnetic effect on moving electric charges, electric currents, and magnetic materials. A moving charge within a magnetic field experiences a force perpendicular to its velocity and to the magnetic field.

Given,

Mass of chlorine ion is 35u

We know that 1 u = 1.66 × 10⁻²⁷kg

Radius of circular path (r) = 3.5 m

Mass of chlorine ion = 35 × 1.66 × 10⁻²⁷

= 58.1 × 10⁻²⁷kg

Charge (q) =  1.6 × 10⁻¹⁹C

Potential difference (V) = 250 Kv

According to conservation of energy:

¹/₂ mv² = qV

¹/₂ × 58.1 × 10⁻²⁷ × v² = 1.6 × 10⁻¹⁹ × 25 × 10⁴

v = 2.6 × 10⁶ m/s

As we know,

r = mV/qB

B = mV/qr

B =  58.1 × 10⁻²⁷× 25 × 10⁴/1.6 × 10⁻¹⁹× 3.5

B =  0.269 T

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Answer: microwaves, infrared light, ultraviolet light, X-rays and gamma-rays

Hopes this helps!

Red light

Orange light

Green light

Violet light

Laser light

Bright light

Dim light

Sun light

In conclusion, the electrostatic potential at the right angle of the triangle is given by the equation V_total = k * q / (3l - d) + k * q / (4l - d).

The electrostatic potential at the right angle of the triangle can be determined by considering the contributions from each of the charges. Since the charges are equal, the potential at the right angle will be the sum of the potentials due to each charge.
To calculate the potential due to a single charge, we can use the equation V = k * q / r, where V is the electrostatic potential, k is Coulomb's constant (approximately 9 x 10^9 Nm^2/C^2), q is the charge, and r is the distance from the charge.
In this case, both charges are placed at the edges of the hypotenuse. Let's assume the distance between each charge and the right angle is d. Since the triangle is a 3l - 4l - 5l triangle, the distance from each charge to the right angle can be determined as follows:
For the charge at the 3l side, the distance is 3l - d.
For the charge at the 4l side, the distance is 4l - d.
Now, we can calculate the potential due to each charge using the equation mentioned earlier.
The potential due to the charge at the 3l side is V1 = k * q / (3l - d).
The potential due to the charge at the 4l side is V2 = k * q / (4l - d).
Finally, the total potential at the right angle is the sum of these two potentials: V_total = V1 + V2.
In conclusion, the electrostatic potential at the right angle of the triangle is given by the equation V_total

= k * q / (3l - d) + k * q / (4l - d).

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The ratio of the masses x/y of the asteroids is: 17.2. The correct option is b.

What are asteroids?

Asteroids are rocky, airless objects that orbit the Sun and are smaller than planets. They are remnants from the early formation of our solar system, primarily composed of rock and metal. Most asteroids are found in the asteroid belt, a region located between the orbits of Mars and Jupiter. However, they can also be found in other regions, such as near-Earth space.

In order for the astronaut to be in equilibrium between the two asteroids, the gravitational forces exerted by the asteroids on the astronaut must balance each other.

The gravitational force between two objects can be calculated using the formula F = G × (m1 × m2) / r², where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers.

Since the astronaut is in equilibrium, the gravitational forces from asteroids X and Y must be equal. Therefore, we have:

G × (mX × mAst) / (140 km)² = G × (mY × mAst) / (581 km)²

By canceling out the gravitational constant and rearranging the equation, we get:

(mX / mY) = (581 km / 140 km)² ≈ 17.2

Hence, the ratio of the masses of asteroids X and Y is approximately 17.2, giving us option (b) as the correct answer.

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Complete question:

An astronaut is in equilibrium when he is positioned 140 km from the center of asteroid X and 581 km from the center of asteroid Y, along the straight line joining the centers of the asteroids. What is the ratio of the masses X/Y of the asteroids?

(a) 0.0581

(b) 17.2

(C) 0.241

(d) 4.15

Answer:

The ions stick together because of the electrostatic attraction between ions that are near one another.Electrostatic attraction refers to the electrostatic force of long-range interaction occurring between the attractive electrostatic adsorption in aqueous solution with differently charged particles or uncharged particles.

Hope this helps!! ;)

Answer:What they did not count on is the immense distance to the stars, which made the shift so small it was not able to be detected until the 1830s. The first scientist to do so was Friedrich Bessel in 1838. The method that is used to measure distances to nearby stars is called trigonometric parallax, or sometimes, triangulation.

Explanation:

Answer:

5.0 m/s south.

Just did it.

Hope This Helps!

Answer:

5.0 m/s south

Explanation:

The negative plate is the one facing us because the electric field between the plates is zero, which can only happen if the two plates have the same magnitude and opposite sign of charge density.

Charge density is the amount of electric charge per unit area or per unit volume of a material or object. It is usually denoted by the symbol ρ and is measured in units of coulombs per square meter (C/m²) or coulombs per cubic meter (C/m³).

In the case of a charged plate, the charge density is the total charge on the plate divided by its surface area. For example, if a plate has a charge of 60 µC and an area of 2 m², then the charge density is:

Charge density = 60 µC / 2 m² = 30 µC/m²

Charge density is an important concept in electrostatics, as it is used to describe the distribution of electric charge over a surface or within a volume. It is also used in the calculation of electric fields and forces in electrostatics, as the electric field depends on the charge density of the objects producing the field.

Two large, charged plates with charge density ±30µC/m² facing each other with a separation of 5.0 mm.

One of the plates has a negative charge density.

We want to find out which plate is negative

1. Calculate the total charge on one of the plates using the charge density and the area of the plate:

Q = ±30 µC/m² * A

Here, A is the area of one of the plates.

2. Calculate the electric field due to each plate using Coulomb's law:

E = (1/4πε₀) * (Q / r²)

Here, r is the distance between the plates, which is 5.0 mm or 0.005 m.

ε₀ is the permittivity of free space, which is a constant and has a value of 8.85 x 10⁻¹² F/m.

Since there are two plates, calculate the electric field due to each plate and then take the difference between them to get the net electric field between the plates.

3. Substitute the values and calculate the electric field due to each plate:

E1 = (1/4πε₀) * (Q / r²)

E2 = (1/4πε₀) * (Q / r²)

Here, E1 is the electric field due to one plate, and E2 is the electric field due to the other plate. Since the plates have the same magnitude of charge density, their charges will have the same magnitude too, so we can drop the absolute value sign in Coulomb's law.

4. Subtract the electric field due to one plate from the electric field due to the other plate to get the net electric field:

E = E1 - E2

E = 0

Since, the net electric field is zero, this means that the electric field due to one plate is equal in magnitude and opposite in direction to the electric field due to the other plate. Therefore, the plates must have the same magnitude of charge and opposite signs of charge density.

5. Since, one of the plates has a negative charge density is known, this means that the negative plate is the one facing us. Therefore, the negative plate is the one that we were asked to identify.

Therefore, the negative plate is the one facing us.

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Answer:

Yes

Explanation:

if it's staying at 5mph and cruising at that speed it's constant speed

The distance the wagons travel until the spring is fully compressed is 2 × xmax = 3.42 m. To solve this problem, we need to apply the principle of conservation of momentum and conservation of energy.

Initially, the momentum of the system is given by:

p1 = (15 kg + 5 kg) × 3.75 m/s = 75 kg m/s

After the collision, the two wagons stick together and move as one unit, with a combined mass of 30 kg. Let v be the common velocity of the two wagons after the collision. Then, the momentum of the system is given by:

p2 = 30 kg × v

According to the principle of conservation of momentum, p1 = p2. Therefore, we have:

75 kg m/s = 30 kg × v

which gives:

v = 2.5 m/s

Now, let's consider the energy of the system. Initially, the kinetic energy of the system is given by:

K1 = (1/2) × (15 kg + 5 kg) × (3.75 m/s)² = 421.875 J

After the collision, the energy of the system is stored in the compressed spring. The potential energy of a spring is given by:

U = (1/2) × k × x²

where k is the spring constant and x is the displacement of the spring from its equilibrium position. At maximum compression, the displacement is xmax, and the potential energy is:

Umax = (1/2) × 250 N/m × xmax²

According to the principle of conservation of energy, the initial kinetic energy of the system is converted to potential energy of the spring at maximum compression. Therefore, we have:

K1 = Umax

which gives:

xmax = sqrt(2 × K1 / k) = 1.71 m

Therefore, the distance the wagons travel until the spring is fully compressed is 2 × xmax = 3.42 m.

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True. In GMAW (Gas Metal Arc Welding), the amperage is controlled by adjusting the wire feed speed.

GMAW is a welding process that uses a continuously fed wire electrode to join two pieces of metal together. The wire electrode is fed through a welding gun and is melted by an electric arc, which produces a pool of molten metal that solidifies to form a weld.

The amperage in GMAW is controlled by adjusting the wire feed speed, which is the rate at which the wire electrode is fed through the welding gun. Increasing the wire feed speed increases the amperage, while decreasing the wire feed speed decreases the amperage. This allows the welder to control the heat input and penetration of the weld.

As the wire feed speed increases, so does the amperage, and vice versa.

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Answer:

North star, its close to our solar system but not in it. hope this helps

Answer: Food chain: cheese a product of the sun.

Explanation:

Food chain: The energy taken from the sun through photosynthesis enables plants to exist and grow.

The animal like cow takes chemical energy from plants by eating plants product.

The cow is able to produce the milk because of the energy that has been taken from the plant.

Since the cheese came out from the milk, we can therefore conclude that the food is initially a product of the sun.

Hi! Let's see.

Explanation:

Data:

==================================================================

We apply the distance formula:

We replace by the data:

It divides:

Answer: The distance is 15 meters.

Cordially Alejanndraax. Greetings!

The distance covered by the machine is 15 m.

Work done on an object is defined as the dot product of the force applied on the object and the displacement of the object.

Here,

Amount of work done by the machine, W = 12000 J

Force exerted on the machine, F = 800 N

The equation for work done,

W = F.s

Therefore, displacement,

s = W/F

s = 12000/800

s = 15 m

Hence,

The distance covered by the machine is 15 m.

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Answer:

im guessing red giant-

I'll get the Vx by dividing them, which is equal to the V initial of the... as it falls off the counter and lands 1.4 metres from the base.

The quadratic formula in elementary algebra is a formula that gives the solution(s) to a quadratic equation. In addition to the quadratic formula, there are various methods for solving quadratic equations, including factoring (direct factoring, grouping, and the AC technique), completing the square, graphing, and others. In the literature, there are numerous ways to derive the quadratic formula. The common one uses the finishing the square method in a straightforward manner. Different approaches can be simpler in some cases than finishing the square and can also provide intriguing insights into different mathematical topics.

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Answer: The charge that flows through the wire in 60 s is 14.87 C.

Explanation: The charge that flows through the wire in 60 s can be calculated using the formula:

Charge = Current x Time

The current can be calculated using Ohm’s law:

Current = Voltage / Resistance

Substituting the given values:

Current = 3.00 V / 12.1 Ohms = 0.2479 A

Charge = 0.2479 A x 60 s = 14.87 C

Hope this helps, and have a great day! =)

The resultant force on the object is

∑ F = 〈0, 8〉 N + 〈6, 0〉 N = 〈6, 8〉 N

which has a magnitude of

F = √((6 N)² + (8 N)²) = √(100 N²) = 10 N

By Newton's second law, the acceleration has magnitude a such that

F = m a

10 N = (2 kg) a

a = (10 N) / (2 kg)

a = 5 m/s²

so the answer is B.

Answer:

1 m/s^2

Explanation:

a=(v-u)/t

where,

a=acceleration

v=final velocity

u=initial velocity

(4.5-0)/4.5

1 m/s^2

Answer:

8.22m

Explanation:

As interpreted from this problem, the angle of launch is 90 degrees as it is thrown straight up. Given an angle launch of 90°, upward initial velocity of 12.7m/s, and initial height of 0m. A much simpler equation can be used to find the maximum height.

\(h_{max} = h_ {0} + \frac{{v_0}^{2} }{2g}\)

this means that the max height is equal to the initial height plus the initial velocity squared divided by 2 times the acceleration of earth's gravity(≈9.8m/s^2 or 10m/s^2 depending on how you fix it).

when substituted into the equation, you should get.

(9.8m/s^2)

hmax = 0 + ((12.7)^2)/(2*9.8)

hmax = 161.29/19.6 ≈ 8.22

hmax = 8.22m

Answer:

pH value is between 6.5 and 6.8

Explanation:

Explanation:

Milk fresh from the cow typically has a pH between 6.5 and 6.7. The pH of milk changes over