a box is sliding across a horizontal surface. the box has a weight of 45 n. if the frictional force on the box is 405 n, what is the coefficient of kinetic friction on this surface?

Answer:

The vehicle safety check indicates the ABS is functioning normally.:

Technician B is correct because a refractometer is used to measure the specific gravity or concentration of a liquid, while a coolant leak from the water pump weep hole is not normal and indicates a problem with the cooling system.

Technician A is not correct, as coolant leaking out of the water pump weep hole is not normal and indicates a problem with the water pump.

Technician B is correct, as a refractometer is a device used to measure the specific gravity of a liquid by measuring the bending of light as it passes through the liquid. This is a commonly used tool in the automotive industry for measuring the concentration of antifreeze in coolant. Therefore, technician B is correct.

To know more about the coolant, here

brainly.com/question/13798694

#SPJ4

The number of protons plus the number of neutrons decreases

Beta decay occurs when, in a nucleus with too many protons or too many neutrons, one of the protons or neutrons is transformed into the other. In beta minus decay, a neutron decays into a proton, an electron, and an antineutrino: n Æ p + e - +.

When a solid turns into a liquid, the particles gain energy and vibrate more quickly.

As heat is added to the solid, the particles gain energy and start moving more vigorously. Eventually, the energy overcomes the intermolecular forces holding the particles in place, causing them to break free from their fixed positions.

As a result, the solid's structure breaks down, and the particles become less organized, allowing them to flow freely past one another. This change from a solid to a liquid is known as melting, and it occurs at the melting point of the substance.When a liquid turns into a gas, the particles experience a process called vaporization or evaporation.

In a liquid, the particles are loosely packed and move more freely compared to a solid. As heat is applied to the liquid, the particles gain even more energy and move faster. Some particles near the surface gain enough energy to overcome the attractive forces of neighboring particles and escape into the surrounding space as gas molecules.

This transition from a liquid to a gas occurs at the boiling point of the substance. The remaining liquid continues to evaporate until all the liquid has been converted into gas or until equilibrium is reached.In both processes, the arrangement and motion of the particles change significantly.

The transition from a solid to a liquid involves a breakdown of the fixed positions of the particles, while the transition from a liquid to a gas involves the escape of particles from the liquid's surface.

for such more questions on particles

https://brainly.com/question/27911483

#SPJ8

The process shown is an example of alpha emission, as it involves the emission of an alpha particle (consisting of two protons and two neutrons) from the uranium nucleus to form the thorium nucleus.
The process you provided, 23892U → 23490Th + 42He, is an example of:
b) alpha emission

1. Identify the initial element and the products: The initial element is uranium-238 (23892U), and the products are thorium-234 (23490Th) and helium-4 (42He).
2. Compare the initial element and the products: The uranium-238 nucleus loses two protons and two neutrons, forming thorium-234 and a helium-4 nucleus.
3. Determine the type of radioactive decay: Since a helium-4 nucleus (also known as an alpha particle) is emitted, this process is an example of alpha emission.

To know more about alpha emission:

https://brainly.com/question/29835423

#SPJ11

One double bond consists 4 electrons, so 2 double bonds means 8 electrons

Answer: 8 electrons

Explanation:edg

To determine the volume of the filled soda bottle, we will use equation V = m/D, the volume of the aluminum can then be computed.

The factors that might limit the accuracy of your experiment is

An experiment is described as a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried.

Volumes will be determined using three distinct ways to demonstrate

Learn more about experiments at: https://brainly.com/question/17274244

#SPJ1

Answer:

19.89×10^-26Jm

Explanation:

The Energy of a photon is given as;

E = h×c/λ

Where h is Plank's constant.

c is speed of light

λ is the wavelength.

By multiplying both sides of the equation to λ

E × λ = h×c/λ × λ

E × λ = h×c

= 6.63×10^-34× 3×10^8

= 19.89×10^-26Jm

Given that a 12 V battery is connected to four resistors. We need to calculate the current in the 8.0 Ω resistor.

To find the current flowing through the resistor we need to use Ohm's law.

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

The formula is given as,I = V/R where,I is the current V is the voltage R is the resistance

Therefore, the current through the 8.0 Ω resistor is given by: I = V/R = 12 V / 8.0 ΩI = 1.5 A

So, The current in the 8.0 Ω resistor is 1.5 A.

Resistor : An electrical component that regulates or restricts the flow of electrical current in an electronic circuit is known as a resistor. Additionally, resistors can be utilized to supply a particular voltage to an active device like a transistor.

Know more about Resistor :

https://brainly.com/question/30672175

#SPJ11

Answer:

It's all about the conduction between the pan and the cookies.

Explanation:

The cookies in the middle of the pan are not going to be cooked as much as the cookies touching both the bottom of the pan and the side of the pan due to the level of heat being given to those outside cookies. Lets try an example:

Lets say you're in a car in the middle of summer. You and your sibling sit on opposite sides of your other sibling, who is sitting in the middle seat. You and your other sibling are pressed up against the door of the car, making you heat up quicker since not only is it hot in the car, the sun is also on you. Meanwhile your other sibling isn't getting as much heat (but is still warm).

I hope this was able to help! There weren't any answers listed, so it may be the following:

- Conduction of heat

- Transfer of heat

- The pan heating up more of the cookie

- The conversion of more heat energy to the outside cookies

Good luck!

Answer:

C

Explanation:

Answer: Rubber, copper, aluminum, plastic, zinc, glass

Explanation:Or something along those lines

Answer:

The volume of a gas is dependent on pressure and temperature.

Explanation:

Pressure and temperature affect different gases differently giving varied conclusions to the exact volume of that gas.

:-befrank

Answer: Carbon dioxide  is the primary greenhouse gas emitted through human activities. In 2019,  accounted for about 80 percent of all U.S. greenhouse gas emissions from human activities. Carbon dioxide is naturally present in the atmosphere as part of the Earth's carbon cycle (the natural circulation of carbon among the atmosphere, oceans, soil, plants, and animals. Human activities are altering the carbon cycle–both by adding more  to the atmosphere, and by influencing the ability of natural sinks, like forests and soils, to remove and store  from the atmosphere. While emissions come from a variety of natural sources, human-related emissions are responsible for the increase

Explanation:

Answer:

I need points cri

Explanation:

Answer:

Electrons

Source:

https://kidshealth.org/en/kids/electric-shock.html#:~:text=When%20you%20touch%20a%20doorknob,quick%20movement%20of%20these%20electrons.

The electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

To find the electric field strength at a distance 1.20 m on the x-axis, we can use Coulomb's law:

\($$F=k\frac{q_1q_2}{r^2}$$\)

where F is the force between two charges, q1 and q2 are the magnitudes of the charges, r is the distance between the charges, and k is the Coulomb constant.For a single point charge q located at the origin of the x-axis, the electric field E at a distance r is given by:

\($$E=\frac{kq}{r^2}$$\)  where k is the Coulomb constant.

So, let's calculate the electric field due to each charge separately and then add them up:

For the +2.0 C charge at x = 0, the electric field at a distance of 1.20 m is:\($$E_1=\frac{kq_1}{r^2}=\frac{(9\times10^9)(2.0)}{(1.2)^2}N/C$$\)

For the -3.0 C charge at x = 0.40 m, the electric field at a distance of 1.20 m is:

\($$E_2=\frac{kq_2}{r^2}\)

\(=\frac{(9\times10^9)(-3.0)}{(1.20-0.40)^2}N/C$$\)

The negative sign indicates that the direction of the electric field is opposite to that of the positive charge at x = 0.

To find the net electric field, we add the two electric fields\(:$$E_{net}=E_1+E_2$$\)

Substituting the values of E1 and E2:

\($$E_{net}=\frac{(9\times10^9)(2.0)}{(1.2)^2}-\frac{(9\times10^9)(3.0)}{(0.8)^2}N/C$$E\)

net comes out to be -1.5×10⁴ N/C.

Therefore, the electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

Know more about  electric field   here:

https://brainly.com/question/19878202

#SPJ8

The lightning is occurring approximately 5.1  kilometers away if the flash to bang is 15 seconds. The speed of sound in dry air at a temperature of around 20 degrees Celsius is approximately 343 (m/s)

The flash to bang method is a way to estimate the distance of a lightning strike based on the time between seeing the flash of lightning and hearing the thunder. Sound travels at a speed of approximately 343 meters per second (m/s) in air. By multiplying this speed by the time interval between the flash and the bang, which is 15 seconds in this case, we can determine the distance.

To calculate the distance, we use the formula:

\(\begin{equation}\text{Distance} = \text{Speed} \times \text{Time}\)

Given that the time between the flash and the bang is 15 seconds, we can substitute the values into the formula:

\(\text{Distance} = 343\ \text{m/s} \times 15\ \text{s} = 5145\ \text{m} = 5.145\ \text{km}\)

Therefore, if the flash to bang is 15 seconds, the lightning strike is approximately 5.1  kilometers away.

Learn more about speed of sound here:

https://brainly.com/question/15381147

#SPJ11

Answer: Collinear forces are forces that have a common line of action, i.e. the line of action of the forces lies along a single straight line.

Explanation:

If someone were looking at our solar system from a distance of 9.0 light-years away, they would require a small angular resolution to see the Sun and Jupiter as two distinct points of light. An angular resolution of at least 0.1 arcseconds would be needed.

There are a few reasons for this.

First and foremost, the Sun is extremely bright, making it difficult to see Jupiter and other objects near it without some form of magnification.

To see Jupiter as a separate point of light, you would need an angular resolution that would enable you to distinguish between it and the Sun.

As a result, any telescope used to look at the Sun and Jupiter would need to have a very high angular resolution.

As it turns out, the Hubble Space Telescope is capable of achieving an angular resolution of around 0.1 arcseconds.

In conclusion, if you were looking at our own solar system from a distance of 9.0 light-years away, you would require an angular resolution of at least 0.1 arcseconds to see the Sun and Jupiter as distinct points of light.

to know more about angular resolution visit:

https://brainly.com/question/31858807

#SPJ11

The plane's acceleration that reached a speed of 88 m/s in order to gain enough lift force need to take off and fly through the air is 4.47m/s².

The acceleration of a moving body can be calculated by using the following formula;

a = (v - u)/t

Where;

According to this question, an airplane must reach a speed of 88 m/s in order to gain enough lift force need to take off and fly through the air. The acceleration can be calculated as follows:

a = 88m/s ÷ 19.7s

a = 4.47m/s²

Therefore, the plane's acceleration that reached a speed of 88 m/s in order to gain enough lift force need to take off and fly through the air is 4.47m/s².

Learn more about acceleration at: https://brainly.com/question/12550364

#SPJ1

Answer:

Point number 3.

Explanation:

Volcanism can be studied to found out evidence of the internal structure of the Earth.

Answer:

Volcanism

Explanation:

The time constant (in ms) of the RC circuit is 3.75 ms. Hence, the correct option is  (d) 3.75 ms.

The rate of decay of the current in a charging capacitor is proportional to the current in the circuit at that time. Therefore, it takes longer for a larger current to decay than for a smaller current to decay in a charging capacitor.A capacitor is discharged through a 20.0 Ω resistor.

The discharge current decreases to 22.0% of its initial value in 1.50 ms. We can obtain the time constant of the RC circuit using the following formula:$$I=I_{o} e^{-t / \tau}$$Where, I = instantaneous current Io = initial current t = time constant R = resistance of the circuit C = capacitance of the circuit

To know more about circuit visit:-

https://brainly.com/question/12608516

#SPJ11

The time constant of the RC circuit is approximately 0.674 m s.

To determine the time constant (τ) of an RC circuit, we can use the formula:

τ = RC

Given that the discharge current decreases to 22.0% of its initial value in 1.50 m s, we can calculate the time constant as follows:

The percentage of the initial current remaining after time t is given by the equation:

I(t) =\(I_oe^{(-t/\tau)\)

Where:

I(t) = current at time t

I₀ = initial current

e = Euler's number (approximately 2.71828)

t = time

τ = time constant

We are given that the discharge current decreases to 22.0% of its initial value. Therefore, we can set up the following equation:

0.22 =\(e^{(-1.50/\tau)\)

To solve for τ, we can take the natural logarithm (ln) of both sides:

ln(0.22) = \(\frac{-1.50}{\tau}\)

Rearranging the equation to solve for τ:

τ = \(\frac{-1.50 }{ ln(0.22)}\)

Calculating this expression:

τ ≈ 0.674 m s

Learn more about time constant here:

brainly.com/question/32577767

#SPJ11

Here the force is 20 N and mass is 5 kg

acc= Force/mass

acc=20/5= 4m/s²

Hello!!

For this, use the formula:

\(\boxed{I=V/R}\)

\(\textbf{Being:}\)

\(\sqrt{}\) \(I = Current = ?\)

\(\sqrt{}\) \(V = Voltage = 160 \ V\)

\(\sqrt{}\) \(R = Resistance = 10\ \varOmega\)

\(\textbf{If we replace and resolve it}\)

\(I = 160\ V / 10\ \varOmega\)

\(I = 16\ A\)

\(\text{The current of that circuit is \textbf{16 Amperes}}\)

Answer:

carpet

Explanation:

Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many angles rather than at just one angle as in the case of specular reflection.

The structure of carpet's surface is as shown. Thus it shows large amount of diffuse reflection.

We will have the following:

From the graph we can see that the point at which it is accelerating upward is at point C. [We can see that where the slope of the function is positive the acceleration will be positive]

We determine the maximum magnitude of the acceleration of the rider by using the maximum force, that is:

So, the maixmum magnitude of the acceleration will depend on the mass of the rider. Now, since the mass cannot be 0 kg since that would undetermine the expression we know then that the best approximation is:

Where "m" is the mass of the rider in kg. Since we are not given a mass, then the acceleration can only be expressed as the force divided by the mass of the rider.

Answer:

Dilute

Explanation:

A dilute is a substance mixed with water to make it thinner or weaker.

Answer:

a dilute

Explanation:

The force on the truck is the same in magnitude as the force on the car.

The impulse experienced by an object during collision is directly proportional to the applied force and time of collision of the objects.

J = Ft

where;

The increase in the force applied to an object causes an increase in the impulse experienced by the object.

Also, according to Newton's third law of motion, the force exerted on the loaded truck and the car are equal in magnitude but opposite in direction.

Thus, we can conclude that, the force on the truck is the same in magnitude as the force on the car.

Learn more about Newton's third law of motion here: https://brainly.com/question/25998091

When two forces act on an object to cause only rotation, they create a torque or moment.

Torque, also known as moment, is the rotational equivalent of force. It is the product of force and the perpendicular distance from the axis of rotation to the line of action of the force. When two forces act on an object in such a way that their lines of action do not pass through the same point, a torque or moment is generated.

The torque generated by each force is determined by multiplying the force magnitude by the perpendicular distance from the axis of rotation to the line of action of that force. The net torque on the object is the sum of the torques generated by the individual forces. If the net torque is non-zero and there are no other forces causing translational motion, the object will experience pure rotation.

In summary, when two forces act on an object to cause only rotation, they create a torque or moment. The net torque determines the rotational motion of the object, while other factors such as the object's mass distribution and rotational inertia influence the resulting rotation.

Learn more about torque here:

https://brainly.com/question/30338175

#SPJ11