A scientist discovers that an atom with a mass number of 10 contains five electrons.

According to this scenario, what is the atom's atomic number?


1. 20

2. 5

3. 10

4. 15

Distance divided by time is known as the speed of the given body or the object the result we get out by dividing the distance from the time is a scalar quantity as it does not depend on the direction of the moving object.

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second. The generally considered unit for speed is a meter per second.

Let us suppose an ant is moving and it covers a total distance of 2.5 meters in 25 seconds, then if we divide the time taken by the ant by the distance traveled by the ant we would get the speed of the ant.

Thus, distance divided by time is known as speed.

Learn more about speed from here,

brainly.com/question/7359669

#SPJ6

Answer:

Conditions under which the belt and pulleys are operating – The friction between the belt and pulley may decrease substantially if the belt happens to be muddy or wet, as it may act as a lubricant between the surfaces.

Explanation:

I hope that this would be helpful

Answer:

D

Explanation:

it's all of the above because they all use for gravity

Answer: From What i Seeing it is Option B

Answer:

Kuiper belt

Explanation:

The experiment describes the measurement of a diffraction pattern produced by a laser beam incident on a fish within a fish tank. Here, the entire path of the laser was in water and tissue with an index of refraction close to that of water.

Here, d1 is the distance between the laser beam source and the fish, and d2 is the distance between the fish and the screen.So,\($$d_2 = b - d_1$$\) Given that, d1 = 30 cm Let's say that, λ in air = λ Since, the entire path of the laser was in water and tissue with an index of refraction close to that of water. Therefore, the wavelength in water, λ′ is given by\(:$$λ′ = λ/n$$\) where n is the refractive index of water.So, the distance spanned by the diffraction spot as it moved back and forth is:\($$d_2 = b - d_1 = λ′d(n+1/2)$$\)In 100 words, the distance spanned by the diffraction spot as it moved back and forth is given by d2 = λ′d(n+1/2), where d is the distance between the fish and the screen, n is the order of diffraction, λ′ is the wavelength of the laser beam in water and n is the refractive index of water.

Here, the experiment describes the measurement of a diffraction pattern produced by a laser beam incident on a fish within a fish tank, so the properties of the diffraction pattern were thus determined by the wavelength in water. Hence, the diffraction pattern will appear larger on the screen when the screen is in the water.

To know more about Diffraction visit-

https://brainly.com/question/12290582

#SPJ11

The magnitude of the average force exerted on the mud ball during the impact of a 2-kilogram mud ball is dropped from a height of 18 meters is 46N.

First we need to use the equation:

force = mass x acceleration

We know the mass of the mud ball is 2 kilograms, and we can calculate the acceleration by using the equation:

acceleration = change in velocity / time

To find the change in velocity, we need to use the equation for the conservation of energy:

potential energy = kinetic energy

The potential energy of the mud ball at a height of 18 meters can be calculated using the equation:

potential energy = mass x gravity x height

where gravity is approximately 9.8 m/s².

So, the potential energy of the mud ball is:

Potential Energy \(= 2 *9.8 *18 = 352.8 joules.\)

When the mud ball hits the ground, all of its potential energy is converted to kinetic energy. The equation for kinetic energy is:

kinetic energy = 0.5*mass*(velocity)²

We can rearrange this equation to solve for velocity:

\(velocity = \sqrt{(2*(KE)/ mass)}\)

Using the value we found for the potential energy, we can calculate the velocity of the mud ball just before it hits the ground:

\(velocity = \sqrt{(2*352.8 / 2)}= 14.97 m/s\)

Now that we know the velocity of the mud ball just before it hits the ground, we can use the equation for acceleration to find the acceleration during the impact:

\(acceleration = change in velocity / time\)

The change in velocity is equal to the velocity just before the impact, since the mud ball comes to a stop during the impact. So:

\(acceleration = 14.97 / 0.65 = 23 m/s^2\)

Finally, we can use the equation for force to find the magnitude of the average force exerted on the mud ball during the impact:

\(force = mass*acceleration = 2 *23 = 46 N\)

So the magnitude of the average force exerted on the mud ball during the impact is 46 N.

To learn more about the average force :https://brainly.com/question/18652903

#SPJ11

The paperclip that is not directly touching the magnet is actually being attracted to the other paperclip, which is in contact with the magnet. This phenomenon occurs due to the magnetic field created by the magnet, which induces magnetism in the first paperclip.

The magnetized first paperclip then generates its own magnetic field, subsequently attracting the second paperclip. This process is known as magnetic induction.

The evidence supporting this explanation is the fact that non-magnetic materials do not exhibit the same behavior when placed in a similar setup.

Only materials with ferromagnetic properties, such as the paperclip, can be influenced by the magnetic field and display this chain of attraction.

Learn more about magnetic fields at

https://brainly.com/question/3654145

#SPJ11

C. The magnitudes of the acceleration and the gravitational field strength are equal.

This is because the acceleration of the satellite is directly proportional to the gravitational force exerted by Earth, as described by Newton's Second Law. Therefore, the acceleration of the satellite is equal in magnitude to the gravitational field strength at the location of the satellite. It is important to note that this relationship holds true only when there are no other significant forces acting on the satellite.

Considering the options provided, the correct answers are:
B. The gravitational field and the acceleration point in the same direction.
C. The magnitudes of the acceleration and the gravitational field strength are equal.

Since the only force acting on the satellite is the gravitational force, the acceleration experienced by the satellite is directly related to the gravitational field. As a result, they both point in the same direction, which is towards the center of the Earth.

Furthermore, the magnitudes of the acceleration and the gravitational field strength are equal, as the gravitational force is the only factor contributing to the satellite's acceleration.

To know more about Gravitational force visit:

https://brainly.com/question/12528243

#SPJ11

The electron and proton in a hydrogen atom would emit light with a wavelength of 600 nm when the electron is at a radius of approximately 0.053 nm and the total mechanical energy of the hydrogen atom is approximately -2.18 x 10⁻¹⁸

a. To calculate the radius at which the electron and proton in a hydrogen atom would emit light with a wavelength of 600 nm, we can use the formula for the Bohr radius:

r = n² × (h² / (4π² × m × e²))

The reduced mass, denoted as μ, is given by:

μ = (m\(_{e}\) × m\(_{p}\)) / (m\(_{e}\) + m\(_{p}\))

where m_e is the mass of the electron (9.109 x 10⁻³¹ kg) and m\(_{p}\) is the mass of the proton (1.673 x 10⁻²⁷ kg).

Substituting the values, we can calculate the radius:

μ = \(\frac{(9.109 x 10⁻³¹ kg × 1.673 x 10⁻²⁷ kg)}{(9.109 x 10⁻³¹ kg + 1.673 x 10⁻²⁷ kg)}\)

=9.093 x 10⁻³¹ kg

\(\frac{ (1² × (6.626 x 10⁻³⁴ J·s)²)}{(4π² × (9.093 x 10⁻³¹ kg)} (1.602 x 10⁻¹⁹ C)^²)\)

Now, let's calculate the radius:

r =  \(\frac{ (1 × (6.626 x 10¹³⁴ J·s)²)}{(4 × π² × (9.093 x 10⁻³¹ kg)} (1.602 x 10⁻¹⁹ C)²)\)

Calculating the expression, we find:

r = 0.053 nm

b. The total mechanical energy of the atom can be calculated using the formula:

E = - (k × e²) / (2 × r)

where E is the energy, k is the Coulomb constant (8.988 x 10⁹ N·m²/C²), e is the elementary charge, and r is the radius.

Substituting the values, we can calculate the total mechanical energy:

E = - (8.988 x 10⁹ N·m²/C² × (1.602 x 10⁻¹⁹ C)²) / (2 × 0.053 x 10⁻⁹ m)

Calculating the expression, we find:

E = -2.18 x 10⁻¹⁸J

To know  more about wavelength

https://brainly.com/question/10728818

#SPJ4

Answer:

Length of hole (s) = 362.77 m (Approx)

Explanation:

Given:

Time taken to hit the bottom (t) = 8.6 s

Acceleration due to gravity (g) = 9.81 m/s²

Find:

Length of hole (s) = ?

Computation:

Initial velocity (u) = 0 m/s

S = ut +1/2(gt²)

S = (0)(8.6) +1/2(9.81)(8.6)(8.6)

S = 1/2(9.81)(8.6)(8.6)

S = 1/2(9.81)(8.6)(8.6)

S = 362.7738

Length of hole (s) = 362.77 m (Approx)

The Complete Question:

How do I get one solution of 7x + 69 = 1 ?

Value of x in 7x + 69 = 1 is ( - 9.71 ).

Since the degree of variable is 1, the equation will have only one solution.

The degree of variable is defined at the value of power of the variable.

Using Algebra Equation,

= 7x + 69 = 1

= 7x = 1 - 69

= 7x = ( - 68)

= x = ( - 68) / 7

= x = ( - 9.71 )

Thus, the value of x in 7x + 69 = 1 is ( - 9.71 ) and this is the only solution to single degree algebraic equation.

To know more about Degree of Variable:

https://brainly.com/question/20457785

#SPJ1

Muscle strength is measured by estimating a person's one repetition maximum (1RM).

1RM is a measurement of the greatest load (in kilograms) that one can move means it can be lifted, pushed, or pulled once without failure or injury.

1RM is calculated by counting the maximum number of exercises that you can do in repetition by the use of a load that is just less than the maximum amount that can be moved. This number is known as the repetitions to fatigue (RTF) – you are required to stop counting the repetitions when you feel you can no longer do the exercise in a proper way or when you slow down or can't keep a steady pace.

To know more about muscle strength here

brainly.com/question/12674256

#SPJ4

Answer:

g=9.64m/s^2.

Explanation:

Gravitational field strength (in other words, gravitational acceleration) is given as follows:g=GMR2g=R2GM​where G=6.674×10−11m3kg⋅s2G=6.674×10−11kg⋅s2m3​ is the gravitational constant, M=5.972×1024kgM=5.972×1024kg is the mass of the Earth, and R=6.371×106m+0.06×106m=6.431×106mR=6.371×106m+0.06×106m=6.431×106m is the distance from the center of the Earth to the required point above the surface (radius plus 60 km).

G = 9.4 m/s²

Gravitational acceleration (symbolized g) is an expression used in physics to indicate the intensity of a gravitational field.

It is expressed in meters per second squared (m/s²).

At the surface of the earth, 1 g is about 9.8 m/s 2 .

According to the question,

Gravitational field strength is given as follows:

\(g = \dfrac{GM}{R^2}\)

​Where\(G = 6.674\times 10^{-11}\dfrac{m^3}{kg\cdot s^2}\)    is the gravitational constant,

\(M = 5.972\times 10^{24}kg\) is the mass of the Earth,

and \(R = 6.371\times 10^{6}m + 0.06\times 10^{6}m = 6.431\times 10^{6}m\)

Here, m is the distance from the center of the Earth to the required point above the surface (radius plus 60 km).

Thus, obtain:

\(g = \dfrac{6.674\times 10^{-11}\cdot 5.972\times 10^{24}}{(6.431\times 10^{6})^2} \approx 9.64m/s^2\)

g ≈9.64m/s 2

Therefore ,

The gravitational field strength is g = \(9.64m/s^2\)

Learn more about gravitational field strength here:

https://brainly.com/question/18511078

#SPJ2

.

The total required area of the heat exchanger decreases with increasing tube diameter.

When designing a single tube-pass heat exchanger to heat water by condensing steam in the shell, the total required area of the exchanger is influenced by the tube diameter selected. In this scenario, the water flows through smooth horizontal tubes in a turbulent flow while the steam is condensed dropwise in the shell.

The tube diameter plays a significant role in determining the total required area of the exchanger. As the tube diameter increases, the cross-sectional area for water flow also increases. This results in a higher flow area for the water, reducing its velocity. With reduced velocity, the water spends more time in contact with the tube wall, leading to a greater heat transfer rate.

As the heat transfer rate increases, the overall heat transfer efficiency improves, and consequently, the required area of the exchanger decreases. This is because larger tube diameters provide a larger heat transfer surface area, allowing for more efficient heat exchange between the water and the steam.

The effect of tube diameter on the total required area in a single tube-pass heat exchanger can be explained by considering the fluid dynamics and heat transfer processes involved. The increase in tube diameter allows for a larger cross-sectional area, which leads to a decrease in water velocity. This reduced velocity enhances the contact time between the water and the tube wall, facilitating better heat transfer.

Learn more about  heat exchanger

brainly.com/question/15194906

#SPJ11

im a bit confused on what the question is:(

if its just asking for the total number of km traveled it would be 21 km

The acceleration of the luggage across the airport is 0.42 m/s².

The acceleration of the luggage across the airport is calculated by applying Newton's second law of motion as follows;

Mathematically, the Newton's second law of motion is given as;

F(net) = ma

where;

F - Ff = ma

where;

33.3  - 12.3  = 50a

21 = 50a

a = 21/50

a = 0.42 m/s²

Learn more about acceleration here: https://brainly.com/question/14344386

#SPJ1

The complete question is below:

Jadee pulls a piece of luggage across the airport, notices that she is lagging behind her parents and wants to catch up for a short amount of time. She pulls with a horizontal force of 33.3 N. The force due to friction for the luggage is 12.3 N and the mass of the luggage is 50.0 kg. find the acceleration of the luggage.

Answer:

If the number of half-lives increases, then the number of radioactive atoms decreases, because about half of the atoms'nuclei decay with each half life.

The chemical formula for dinitrogen tetroxide is C) N204.

Nitrogen that exists in its diatomic form, which is also known as molecular nitrogen or nitrogen gas, is referred to as dinitrogen. This form of nitrogen has two nitrogen atoms joined by a triple covalent bond, which satisfies the Lewis electron rules by having two lone, nonbonding electron pairs, one on each Nitrogen atom.

Whereas Dinitrogen tetroxide is colourless, Nitrogen dioxide is brown. As the temperature drops, the brown color's intensity falls. As a result, a drop in temperature results in a rise in Dinitrogen tetroxide. As temperature drops, equilibrium is pushed to the Dinitrogen tetroxide side.

To know more about formula visit:-

https://brainly.com/question/29792091

#SPJ1

The force on the current-carrying loop is 0 N, and the torque experienced by the loop is 0.009 Nm.

To find the force and torque on the square-shaped 6A current-carrying loop, we first need to understand that the force on a current loop in a magnetic field is given by F = qvB, where q is the charge, v is the velocity, and B is the magnetic field strength. In this case, the force will be 0 N, because the magnetic field is parallel to the loop and the angle between them is 0°.

To calculate the torque τ, we use the formula τ = μBsinθ, where μ is the magnetic moment, B is the magnetic field strength, and θ is the angle between them. The magnetic moment μ is calculated as μ = IA, where I is the current and A is the area of the loop. Plugging in the values, we have μ = 6A × 0.0025m^2 = 0.015 Am^2. Since the magnetic field is tilted at 37°, we have θ = 37°.

Now, τ = (0.015 Am^2)(2 × 10^-2 T)sin(37°) ≈ 0.009 Nm. Thus, the torque experienced by the loop is 0.009 Nm.

Learn more about torque here:

https://brainly.com/question/25708791

#SPJ11

Answer:

Explanation:

And the condition of problem N 6 ???

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

The efficiency of the kettle is 117.9%

Efficiency is used to measuring how much work or energy we can conserve in a process. In other words, it is like comparing the output of the energy to the input of the energy in any given system.

It is also define as the ratio of  Energy Input to the Energy Output. To express it in percent multiply it by 100.

Here, Efficiency = Energy output / Energy input

          \(η =\frac{W_{out} }{W_{in} } * 100\)

\(η = \frac{198kJ}{168kJ} * 100\)  

=  117.9%

So , the efficiency is 117.9%

For more Efficiency related question visit:

https://brainly.com/question/13110830

#SPJ1

A moon is defined as a natural satellite orbiting around a planet. It is a celestial body that orbits around a planet or a dwarf planet in our solar system. What makes a moon different from a planet is that moons do not orbit around the sun. They orbit around a planet or a dwarf planet instead.

In addition, moons are smaller than planets and do not have their own atmosphere. Moons can be rocky or icy and can be made up of different types of materials such as dust, rock, ice, and gas. They are formed through various processes such as accretion, collision, capture, and fission. Out of all the moons in our solar system, I think that the moon of our Earth is the most interesting.

The moon of the Earth is the only natural satellite of our planet. It is about one-quarter the size of the Earth and is about 238,855 miles away from the Earth. It has a rocky and dusty surface, with many craters, mountains, valleys, and seas. The moon has played an important role in the history of human civilization, serving as a source of light, a calendar, and an object of scientific study. It has been explored by humans and robots, revealing many secrets of its geology, composition, and history.

To know more about satellite visit :

https://brainly.com/question/28766254

#SPJ11

The given statement "A driver does not need to allow as much distance when following a motorcycle as when following a car." is FALSE.

When following a motorcycle, a driver should maintain the same safe following distance as when following a car. This distance provides adequate time to react in case the motorcycle stops suddenly or encounters an obstacle in the road. In general, drivers should follow the "3-second rule" when determining the safe following distance.

Motorcycles are smaller and lighter than cars, making them more vulnerable to road hazards such as potholes, debris, or uneven surfaces. Additionally, motorcycles can stop more quickly than cars, so maintaining a safe following distance is crucial to avoid a potential collision.

Motorcyclists may also need to make sudden maneuvers or adjust their position in the lane to avoid obstacles, maintain stability, or optimize visibility. Drivers should be aware of these factors and give motorcycles ample space to navigate safely.

Furthermore, drivers should be extra cautious in adverse weather conditions or on wet roads, as motorcycles are more susceptible to losing traction, which can result in a skid or fall. Increasing the following distance in these situations can help ensure the safety of both the motorcyclist and the driver.

In summary, it is false to claim that a driver does not need to allow as much distance when following a motorcycle as when following a car. A safe following distance is crucial for preventing accidents and ensuring the well-being of all road users.

For more such questions on Motorcycles.

https://brainly.com/question/14313682#

#SPJ11

Answer: 60

Explanation: if u hit it it will have impact and the impact added 10n

The density of a substance is the relationship between the mass of the substance and how much space it takes up. The density of cylinder 'P' is twice as that of cylinder 'Q'. The correct option is B.

The three dimensional solid which contains two parallel bases connected by a curved surface. The bases are actually circular in shape. The perpendicular distance between the bases is the height 'h'.

Volume of cylinder =  π × r² × h

The height of P is twice the height of Q, so H will be 2h and the diameter of P is half the diameter of Q, so D will be d / 2.

V = π (d / 2)² (2h) / 4

V = π (d ² / 4) (2h) / 4

V = π d ² h / 8

V = 1/2 • π d ² h / 4

V = v / 2

Density of cylinder P =  m / V = m / (v / 2) = 2 m / v

Density of cylinder Q = m / v

Thus the correct option is B.

To know more about cylinder, visit;

https://brainly.com/question/14371542

#SPJ1

Answer:

Two buses leave school moving in opposite directions, and after 15 minutes they are both 10 miles away from the school. hence we can say that the velocity of the buses is equal.

Explanation:

Because the initial or starting point is same for both, according to the question displacement and time is same for both the buss.

since, velocity = displacement/time taken

thus velocities will be same for both the bus.

Refer for more details:

https://brainly.com/question/19561022