what is a solution a special type of mixture

Answer:

I think it is A or B, but more B as for John used 20 more net force. I recommend doing some research, sorry.

Answer:

I think the answer is B, I may be wrong...

Explanation:

In order to strengthen the battery, we can alter it to include new metals with even greater differences in electronegativity. Electrons will then flow from Zinc to Lithium.

Electrons in orbit that are negatively charged encircle the outside of the nucleus. Because they rotate so swiftly, it can be difficult for scientists to keep an eye on them. They are the smallest particles in an atom and therefore are drawn to the positive charges of protons; one proton can carry 2000 of them.

An electron, that has a negative charge, is the smallest and least substantial part of an atom. Both the protons and electrons are equal in number in a neutral atom. For instance, a hydrogen atom only has one proton or one electron. While the atomic nucleus has 92 protons, which means 92 electrons.

To know more about electron  visit:

https://brainly.com/question/1255220

#SPJ1

Answer:

223.25 \($\text{Jm}^{-1}\text{s}^{-1}^\circ\text{C}^{-1}$\)

Explanation:

The thermal conductivity of an object is defined as the measure or the ability of the object to transfer heat or conduct heat through its body.

In the context, the thermal conductivity of the material is given as

\($=129 \text{ Btu ft}^{-1}\text{h}^{-1}^\circ\text{F}^{-1}$\)

And it is given that :

1 Btu = 1055 J

1 ft = 0.3048 m

\($1^\circ F = \frac{5}{9}^\circ C$\)

We know that 1 h = 3600 s

So the thermal conductivity of the material in \($\text{Jm}^{-1}\text{s}^{-1}^\circ\text{C}^{-1}$\) is  :

Thermal conductivity :

\($=\frac{129 \text{ Btu}}{1 \text{ ft }\times \text{1 h}\times 1^\circ\text{F}}$\)

\($=\frac{129 \times 1055 \text{ J}}{0.3048 \text{ m} \ \times 3600 \text{ s}\ \times \frac{5}{9}^\circ \text{C}}$\)

=  223.25 \($\text{Jm}^{-1}\text{s}^{-1}^\circ\text{C}^{-1}$\)

Answer:

Explanation:

A simple pendulum consists of a mass (usually represented as a small object or bob) attached to a string or rod of negligible mass. The mass is free to swing back and forth under the influence of gravity.

In the figure, the point of suspension is denoted by "O," and the mass (bob) is represented by the small circle. The string or rod is represented by the vertical line connecting the point of suspension to the bob.

Amplitude:

The amplitude of a pendulum refers to the maximum displacement or swing of the bob from its equilibrium position. In the figure, the amplitude can be represented by the angle formed between the vertical position and the position of the bob when it swings to its maximum distance on one side. It is usually denoted by the symbol "A."

Effective Length:

The effective length of a pendulum refers to the distance from the point of suspension to the center of mass of the bob. It represents the distance over which the mass swings back and forth. In the figure, the effective length can be measured as the length of the string or rod from the point of suspension to the center of the bob. It is usually denoted by the symbol "L."

It is important to note that the amplitude and effective length of a simple pendulum affect its period of oscillation (the time taken for one complete swing). The relationship between these parameters and the period can be described by mathematical formulas.

Overall, the simple pendulum is a fundamental concept in physics and provides a simplified model for understanding oscillatory motion and the principles of periodic motion.

Answer:

heart rate increases during activity

Explanation:

You can work at 70 to 85 percent of your maximum heart rate during vigorous activity.

Answer:

reflected by clouds so a is correct

Answer:

This answers idReflected by clouds

The moment of inertia of the sphere when the axis of rotation is through its center be 2.063 kg-m².

The sum of the products generated by multiplying each particle's mass by the square of its distance from the axis results in the moment of inertia (I), which is always expressed with respect to that axis.

Given parameters:

Mass of the sphere: m = 8.20 kg.

Radius of the sphere: r = 0.793 m.

Hence,  the moment of inertia of the sphere when the axis of rotation is through its center be = 2/5 mr²

= 2/5 × 8.20 × 0.793 × 0.793 kg-m².

= 2.063 kg-m².

learn more about moment of inertia here:

https://brainly.com/question/15246709

#SPJ1

Answer:

The variable that impacts kinetic energy is velocity, not mass.

The kinetic energy of an object is given by the formula KE = (1/2)mv^2, where m is the mass of the object and v is its velocity. From the given information, we can calculate the kinetic energy of each object as follows:

Object 1: KE = (1/2) x 2 kg x (2 m/s)^2 = 4 J

Object 2: KE = (1/2) x 4 kg x (3 m/s)^2 = 18 J

Comparing the two objects, we can see that the kinetic energy of the second object is greater than that of the first, even though its mass is greater. This is because the second object is being lifted at a faster rate (i.e., greater velocity) than the first object. Therefore, the variable that impacts kinetic energy in this scenario is velocity, not mass.

Explanation:

.

The pressure is 0.00038 Pa/m, and the power lost to friction per meter of pipe is approximately \(2.28 * 10^-7 W/m.\)

To determine the pressure drop per meter of pipe and the power lost to friction, we need to calculate the friction factor using the Moody chart and the Darcy-Weisbach equation. The Darcy-Weisbach equation is:

ΔP = \(f * L * (v^2) / (2 * g * d)\)

where ΔP is the pressure drop per meter of pipe, f is the friction factor, L is the length of pipe, v is the velocity of the water, g is acceleration that occurs because of gravity and d is pipe's diameter.

We can use the Moody chart to find the friction factor, f, based on the Reynolds number, which is a measure of the fluid flow regime. For a smooth plastic pipe, the Reynolds number can be calculated as:

Re = (v * d) / ν

where ν is the kinematic viscosity of the water, which is approximately \(0.000001 m^2/s\) at 20°C.

Once we have the Reynolds number, we can find the friction factor from the Moody chart. For a Reynolds number of approximately 2200, the friction factor for a smooth plastic pipe is approximately 0.022.

Plugging the values into the Darcy-Weisbach equation, we find that the pressure drop per meter of pipe is:

ΔP = \((0.022) * (1 m) * (0.09 m/s)^2 / (2 * 9.8 m/s^2 * 0.2 m)\) = 0.00038 Pa/m

To calculate the power lost to friction, we can use the equation:

P = ΔP * Q

where P is the power lost to friction and Q is the flow rate, which can be calculated as:

Q = A * v = \((pi/4) * d^2 * v = (pi/4) * (0.2 m)^2 * (0.09 m/s)\)= \(0.0006 m^3/s\)

Plugging the values into the power equation, we find that:

P = ΔP * Q = (0.00038 Pa/m) * (0.0006 \(m^3/s\)) = \(2.28 * 10^-7 W/m\)

Learn more about Pressure here:

https://brainly.com/question/29713163

#SPJ4

The energy per second received by an eardrum will be 5.03×10⁻⁵ J/sec. The energy denotes the sound energy for the eardrum.

The passage of vibrations through matter is characterized as sound energy. When an item vibrates, sound energy is created, resulting in noise.

Sound vibrations induce pressure waves to flow through a material like air, water, wood, or metal.

The threshold of hearing is,5×10⁻¹⁷ sec.

The energy per second received by the eardrum is found by the formula as;

\(\rm E_T = Area \times thresold \\\\ \rm E_T = \pi (4 \times 10^{-3})^2 \times 1 \times 10^{-12} \\\\ E_T =5.03 \times 10^{-17}\\\\\)

Hence, the energy per second received by an eardrum will be 5.03×10⁻⁵ J/sec

To learn more about the sound energy, refer to the link;

https://brainly.com/question/19634540

#SPJ4

The hydrostatic equation for pressure can be used between points that are at the same height and in a fluid at rest. In the image shown, the flow is steady and inviscid, and point (2) is a stagnation point. This means that the fluid is not moving at point (2), and the pressure at this point is equal to the stagnation pressure.
The correct answers are:
-> 1 and 4
-> 1 and 3

The hydrostatic equation for pressure can be used between the following pairs of points:
- 1 and 4: These points are at the same height and in a fluid at rest, so the hydrostatic equation for pressure can be used between them.
- 1 and 3: These points are also at the same height and in a fluid at rest, so the hydrostatic equation for pressure can be used between them.

The hydrostatic equation for pressure cannot be used between the following pairs of points:
- 1 and 2: These points are not at the same height, so the hydrostatic equation for pressure cannot be used between them.
- 3 and 4: These points are not at the same height, so the hydrostatic equation for pressure cannot be used between them.
- 2 and 5: These points are not at the same height, so the hydrostatic equation for pressure cannot be used between them.

To know more about hydrostatic equation refer here:

https://brainly.com/question/30409992

#SPJ11

The acceleration of the block is 6.4 m/s².

To calculate the acceleration of the block, we need to consider the forces acting on it.

The applied force is 40 N, and since it is the only horizontal force in the direction of motion, it is the net force acting on the block.

The frictional force opposing the motion is 8 N.

The acceleration, we can use Newton's second law, which states that the net force acting on an object is equal to its mass multiplied by its acceleration (F = ma).

The net force is the difference between the applied force and the frictional force:

40 N - 8 N = 32 N.

Now, we can plug the values into Newton's second law:

32 N = 5 kg × a.

Solving for the acceleration (a), we get

a = 32 N / 5 kg

a = 6.4 m/s².

Therefore, the acceleration of the block is 6.4 m/s².

For such more questions on

https://brainly.com/question/26408808

#SPJ8

Potential Energy gained by spring compression is0.1875 J.

The speed of the toy after spring release is 2.74 m/s.

To calculate the potential energy gained by spring compression, we can use the formula:

PE = (1/2) k x²

Where PE is the potential energy, k is the spring constant, and x is the distance the spring is compressed.

In this case, the spring constant is 150 N/M and the distance the spring is compressed is 0.050m. Plugging in these values, we get:

PE = (1/2) × 150 N/M × (0.050m)² = 0.1875 J

So the potential energy gained by spring compression is 0.1875 J.

To find the speed of the toy after the spring is released, we can use the formula:

v =√(2KE/m)

Where v is the velocity, KE is the kinetic energy, and m is the mass of the toy.

The kinetic energy gained by the toy is equal to the potential energy gained by the spring compression, so we can use the value of 0.1875 J as the value of KE. The mass of the toy is given as 0.020 kg. Plugging in these values, we get:

v = √(2×0.1875 J/0.020 kg) = 2.74 m/s

So the speed of the toy after the spring is released is 2.74 m/s.

Since the toy accelerates past its equilibrium point, we can assume that it undergoes simple harmonic motion. The maximum displacement of the toy from its equilibrium point is equal to the distance the spring was compressed, which is 0.050m. Using this value and the formula for the simple harmonic motion:

v = √(k/m) × A

Where A is the amplitude of motion. Solving for A, we get:

A = v / √(k/m) = 2.74 m/s / √(150 N/M / 0.020 kg) = 0.109 m

So the amplitude of motion is 0.109 m.

To learn more about Potential Energy visit: https://brainly.com/question/21175118

#SPJ11

The amount of substance affects the total energy through the concept of molar heat capacity. Molar heat capacity is defined as the amount of heat required to raise the temperature of one mole of a substance by one degree Celsius. Therefore, the more substance there is, the more heat energy is required to raise its temperature.

For example, if we have one mole of a substance, it will require a certain amount of energy to raise its temperature by one degree Celsius. However, if we have two moles of the same substance, it will require twice as much energy to raise the temperature of the larger amount by the same one degree Celsius.

Additionally, the amount of substance can affect the total energy through the concept of specific heat capacity. Specific heat capacity is defined as the amount of heat required to raise the temperature of one unit of mass (usually one gram) of a substance by one degree Celsius. Therefore, if we have more mass of a substance, it will require more energy to raise the temperature of the larger amount by the same one degree Celsius.

In summary, the amount of substance affects the total energy through the concepts of molar heat capacity and specific heat capacity, which determine how much energy is required to raise the temperature of a given amount of substance.

According to Newton's law, the greater the mass of the object, the greater force will be required.

The mass of the bowling ball is more than that of the tennis ball.

Thus, the bowling ball requires more force.

The student should have controlled the power of the mains supply, as this affects the amount of energy transferred to the heating element and the rate at which it increases in temperature.

A heating element is a device that produces heat by converting electrical energy into heat energy. It is commonly found in electric heaters, stoves, ovens, toasters, and other appliances. The heating element works by passing an electric current through a coil of wire or metal, typically made of nickel-chromium or iron-chromium alloy. When the current passes through the coil, it produces heat as a result of resistance to the flow of current. The heat is then transferred through the surrounding material and into the air. Heating elements are usually designed to operate at a certain temperature, and when this temperature is reached, the element turns off automatically. Heating elements are important components of many household appliances and are used to provide a safe and efficient source of heat.

To learn more about heating element

https://brainly.com/question/29284313

#SPJ1

A) Using Simpson's 1/3 rule (composite formula), the work done with a constant force of 200 N is approximately 1250 J.

B) Using the MATLAB function trapz, the work done is approximately 7750 J.

Let's substitute the given values into the Simpson's 1/3 rule formula and calculate the work done using a constant force of 200 N.

A) Force (F) = 200 N (constant for all t)

Velocity (v) = 4t (0 ≤ t ≤ 5) and v = 20 + (5 - t)² (5 ≤ t ≤ 15)

Step size (h) = 0.25

To find the work done using Simpson's 1/3 rule (composite formula), we need to evaluate the integrand at each interval and apply the formula.

Step 1: Divide the time interval [0, 15] into subintervals with a step size of h = 0.25, resulting in 61 equally spaced points: t0, t1, t2, ..., t60.

Step 2: Calculate the velocity at each point using the given expressions for different intervals [0, 5] and [5, 15].

For 0 ≤ t ≤ 5: v = 4t For 5 ≤ t ≤ 15: v = 20 + (5 - t)²

Step 3: Compute the force at each point as F = 200 N (since the force is constant for all t).

Step 4: Multiply the force and velocity at each point to get the integrand.

For 0 ≤ t ≤ 5: F * v = 200 * (4t) For 5 ≤ t ≤ 15: F * v = 200 * [20 + (5 - t)²]

Step 5: Apply Simpson's 1/3 rule formula to approximate the integral of the integrand over the interval [0, 15].

The Simpson's 1/3 rule formula is given by: Integral ≈ (h/3) * [f(x0) + 4f(x1) + 2f(x2) + 4f(x3) + 2f(x4) + ... + 4f(xn-1) + f(xn)]

Here, h = 0.25, and n = 60 (since we have 61 equally spaced points, starting from 0).

Step 6: Multiply the result by the step size h to get the work done.

Work done: 1250 J

B) % Define the time intervals and step size

t = 0:0.25:15;

% Calculate the velocity based on the given expressions

v = zeros(size(t));

v(t <= 5) = 4 * t(t <= 5);

v(t >= 5) = 20 + (5 - t(t >= 5)).^2;

% Define the force value

F = 200;

% Calculate the work done using MATLAB's trapz function

\(work_t_r_a_p_z\) = trapz(t, F * v) * 0.25;

% Display the result

disp(['Work done using MATLAB''s trapz function: ' num2str(\(work_t_r_a_p_z\)) ' J']);

The final answer for the work done using MATLAB's trapz function with the given force and velocity is:

Work done using MATLAB's trapz function: 7750 J

For more such information on: force

https://brainly.com/question/12785175

#SPJ8

Friction is the force that acts on the opposite side of direction of force, thus it manages to decelerate an object, so it acts upward along the plane

Answer:

See below.

Explanation:

When the 1500 kg car collides with the wall and rebounds at a speed of 5.00 m/s, we can calculate the change in the car's velocity using the following formula:

Δv = v2 - v1

Where Δv is the change in velocity, v2 is the final velocity, and v1 is the initial velocity. Substituting the given values, we get:

Δv = 5.00 m/s - 20.0 m/s

Δv = -15.0 m/s

The negative sign indicates that the direction of the car's velocity has reversed, or that the car is now moving to the left. To calculate the magnitude of the change in velocity, we take the absolute value:

|Δv| = |-15.0 m/s|

|Δv| = 15.0 m/s

Therefore, the magnitude of the change in velocity is 15.0 m/s.

Now,

To find the magnitude of the average force acting on the car during the collision, we can use the impulse-momentum theorem, which states that:

Impulse = change in momentum

Average force = Impulse / time

The change in momentum of the car is given by:

Δp = mΔv

where Δv is the change in velocity calculated in the previous answer and m is the mass of the car.

Δp = 1500 kg × (-15.0 m/s)

Δp = -22500 kg·m/s

The impulse acting on the car during the collision is equal to the change in momentum:

Impulse = Δp = -22500 kg·m/s

To find the magnitude of the average force acting on the car during the 250 ms collision, we divide the impulse by the duration of the collision:

Average force = Impulse / time

Average force = -22500 kg·m/s / 0.250 s

Average force ≈ -90,000 N

The negative sign indicates that the force is in the opposite direction of the car's motion, or to the left. Therefore, the magnitude of the average force acting on the car during the collision is approximately 90,000 N.

The true statement about mitosis and meiosis is that DNA replication occurs before the division of the nucleus.

option B.

Meiosis is the type of cell division that creates egg and sperm cells.

Mitosis on other hand is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.

The similarity between meiosis and mitosis is that both mitosis and meiosis take place in the cell nuclei, which can be observed under a microscope. So both occurs in the nucleus and DNA replication must occur before the division of the nucleus.

Learn more about mitosis and meiosis here: https://brainly.com/question/2197637

#SPJ1

Answer: c. The electric force increases

Explanation:

If the distance between two charged particles decreases, the electric force between them increases.

According to Coulomb's Law, the electric force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the equation can be represented as:

F = k * (q1 * q2) / r^2

Where:

F represents the electric force between the particles.

k is the electrostatic constant.

q1 and q2 are the charges of the particles.

r is the distance between the particles.

As the distance (r) between the particles decreases, the denominator of the equation (r^2) becomes smaller, causing the overall electric force (F) to increase. Conversely, if the distance between the charged particles increases, the electric force between them decreases. This inverse relationship between the distance and electric force is a fundamental characteristic of the electrostatic interaction between charged objects.

Answer:

. tt tt t t t t t t tt t tt t t jk j k j k j k j k jk k j k jk

Answer:

¢

Explanation:

Given that:

Mass of metal = 12g = 0.012

Density of metal = 4 g/cm³ = 4000kg/m³

Density of oil = 1.5g/cm³ = 1500 kg/m³

Recall : density = mass / volume

Volume of metal, V = mass / density = 0.012/ 4000 = 0.000003

0.000003

T + Density of oil * g * V - (0.012 * 9.8) = 0

T + 1500 * 9.8 * 0.000003 - 0.1176 = 0

T = 0.0441 - 0.1176 = 0

T = 0.1176 - 0.0441

T = 0.0735N

Tension, T

Answer:

Ek = Ekv + Ekh = 4.101 + 0.914 = 5.015J

Explanation:

A 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. What is its potential energy (PE) when it lands

The potential energy PE, relative to the ground, will be zero, because the lemming is at the ground level.

HOWEVER, a much better question would be:

A 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. What is its kinetic energy (KE) when it lands?

Let’s review the 4 basic kinematic equations of motion for constant acceleration (this is a lesson – suggest you commit these to memory):

s = ut + ½at^2 …. (1)

v^2 = u^2 + 2as …. (2)

v = u + at …. (3)

s = (u + v)t/2 …. (4)

where s is distance, u is initial velocity, v is final velocity, a is acceleration and t is time.

In this case, u = 0, a = 9.81m/s^2, s = 5.36m

So we find v using equation (2)

v^2 = u^2 + 2as

v^2 = 0 + 2(9.81)(5.36) = 105.1632

So the kinetic energy resulting from the vertical drop is Ekv = ½mv^2

Ekv = ½(0.078)(105.16) = 4.101J

BUT we need to add in the kinetic energy resulting from the horizontal velocity, which did not change during the vertical drop.

Ekh = ½(0.078)(4.84^2) = 0.914J

So the total kinetic energy is Ek = Ekv + Ekh = 4.101 + 0.914 = 5.015J

The potential energy of the object with a mass of 0.0780 kg  moving from a height of 5.36 m is 4.09 J.

Potential energy of an object is generated by virtue of its position at a height from the ground. It is stored in the object when it is at rest, Whereas,  kinetic energy is generated by virtue of the motion of the body.  These energies are together called mechanical energy of the object.

When the object starts moving from rest, its potential energy starts to convert into kinetic energy and when it stops the reverse occurs . The potential energy of  a body is dependant on its mass and height by the equation:

p = mgh

Given that, mass of the object = 0.078 kg

height  h = 5.36 m

acceleration due to gravity g = 9.8 m/s²

then potential energy p = 0.078 × 9.8 m/s² ×5.36 m = 4.09 J

Therefore, the potential energy of the lemming is 4.09 J.

To find more on potential energy, refer here:

https://brainly.com/question/24284560

#SPJ2

The frequency of the light is 5.77 × 10¹⁸ Hz, if the wavelength of the x-rays is 0.052 nm.

Wavelength of the x-ray, λ = 0.052 nm = 5.2 × 10⁻¹¹ m.

Speed of x-rays, v = 3 × 10⁸ m/s

Let the frequency of the x-ray, = n

We know the relationship between speed of the wave, wavelength and the frequency of the wave is as follows:

speed = wavelength × frequency

3 × 10⁸ = 5.2 × 10⁻¹¹ × n

n = (3 × 10⁸)/(5.2 × 10⁻¹¹)

n = 5.77 × 10¹⁸ Hz

Alternate unit of frequency is 1/sec.

To know more about frequency, here

https://brainly.com/question/5102661

#SPJ4

Answer:

P = 1600 W

Explanation:

The weight of the buggy on Mars is 40 N.

It landed on area of 0.025 m^2.

Pressure is given as force per unit area:

P = F / A

where F = force

A = area

Weight is a force, therefore, the pressure exerted by the buggy on that surface of Mars is:

P = 40 / 0.025

P = 1600 W

The correct answer is C) pressing the INVERT icon on the menu bar. In PSpice, a negative voltage source can be created by selecting the voltage source symbol and then clicking on the INVERT icon in the menu bar.

This will flip the orientation of the voltage source and create a negative voltage source. Double-clicking on the voltage source symbol or rotating the source using the Edit-Rotate selection will not create a negative voltage source. Selecting an AC source will create a sinusoidal voltage source, but it will not necessarily be negative.

Learn more about pressing the INVERT icon on the menu bar from

https://brainly.com/question/32123500

#SPJ11

Answer:

Conduction, convection, and radiation

Explanation:

Conduction is the process in which energy is transferred from a hot body to a cooler body. Convection is a process by which heat is transferred as a result of the movement of heated fluid in the form of air or water. Radiation refers to the transmission of energy through a material medium.

Based on the information provided, a lava lamp could be used to provide an example of conduction, convection, and radiation.