the electrical force, f, between two point charges is directly related to the product of the charges and inversely related to the distance between them. what happens to an electrical force if the distance between two charges doubles while all other factors remain constant?

Answer:

B.

Goals are scored by kicking the ball through goalposts.

Explanation:

The pressure of the 0.130 g helium gas sample in a 649 mL container at 32°C is approximately 150 mmHg.

To calculate the pressure, we can use the ideal gas law formula: PV = nRT. First, we need to convert the given values to their respective units: mass (m) = 0.130 g, volume (V) = 649 mL = 0.649 L, and temperature (T) = 32°C = 305 K.  

Next, determine the number of moles (n) using the molar mass of helium: n = m/M, where M = 4.00 g/mol (for helium). Thus, n = 0.130 g / 4.00 g/mol ≈ 0.0325 mol.  

Now, substitute the values into the ideal gas law formula, and solve for pressure (P): P = (nRT)/V = (0.0325 mol × 0.0821 L·atm/mol·K × 305 K) / 0.649 L ≈ 1.98 atm.  

Finally, convert the pressure to mmHg: 1.98 atm × (760 mmHg/1 atm) ≈ 150 mmHg (to three significant figures).

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The acceleration of the outer edge of the armature is approximately 33,400 m/s^2.

Centripetal acceleration is the acceleration of a body traversing a circular path directed radially toward the centre of the circle. The centripetal acceleration ac has a magnitude equal to the square of the body’s speed v along the curve divided by the distance r from the centre of the circle to the moving body. Centripetal acceleration has units of metre per second squared.

In order to find the acceleration of the outer edge of the armature, we have to use the formula for centripetal acceleration:

ac = (v^2) / r

where, ac = centripetal acceleration

v = velocity of the outer edge of the armature

r = radius of the armature

v = (2857.0 rev/min) x (2π rad/rev) x (1 min/60 s) x (0.02685 m) ≈ 29.85 m/s.

Now we can plug in the values in the above equation:

ac = (29.85 m/s)^2 / 0.02685 m ≈ 33,400 m/s^2.

Therefore, the acceleration of the outer edge of the armature is approximately 33,400 m/s^2.

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Answer:

Number 6:

• From the formula of force:

\(force = mass \times acceleration \\ { \boxed{f = ma}}\)

• But we need to get the acceleration, from the first newtons equation of motion

\(v = u + at\)

• v is the final velocity, but v is zero because the bullet came to rest.

• u is the initial velocity, u = 350 m/s

• a is the acceleration that we need

• t is the time, t = 0.0018 seconds.

» let's now substitute:

\(0 = 350 + (a \times 0.0018) \\ 0.0018a = - 350 \\a = - 194444.44 \\ { \underline{ \: \: |a| = 194444.44 \: m {s}^{ - 2} }}\)

[ negative shows retârdation or deceleration or decrease in speed ]

• Therefore, let's find the force:

mass = 6g = (6/1000) kg = 0.006 kg

\(force = m \times |a| \\ f = 0.006 \times 194444.44 \\ { \underline{ \underline{ \: \: force = 1166.67 \: \: { \sf{newtons \: \: }}}}}\)

The strength of an electric field in which a charged particle of 3.0 X 10-9 C is 0.05m from the test charge is \(\[3.6 \times 10^8 \, \text{N/C}\]\).

The strength of an electric field can be calculated using the formula:

Electric field strength (E) = Force (F) / Test charge (q)

In this case, we are given the charge of the test particle (\(\[q = 3.0 \times 10^{-9} \, \text{C}\]\)) and the distance from the test particle to the charge creating the electric field (r = 0.05 m).

The force between two charges can be calculated using Coulomb's Law:

Force \(\[(F) = \frac{{k \cdot q_1 \cdot q_2}}{{r^2}}\]\)

where k is the electrostatic constant \(\[(k \approx 8.99 \times 10^9 \, \text{Nm}^2/\text{C}^2)\]\), q1 and q2 are the charges, and r is the distance between them.

In this scenario, we have a single charge creating the electric field, so q2 = 1 C (unit test charge). Substituting the given values into the formula, we get:

\(\[(F) = \frac{{k \cdot q_1 \cdot q_2}}{{r^2}}\]\)

\(\[F = \frac{{(8.99 \times 10^9 \, \text{Nm}^2/\text{C}^2) \cdot (3.0 \times 10^{-9} \, \text{C}) \cdot (1 \, \text{C})}}{{(0.05 \, \text{m})^2}}\]\)

Simplifying the equation gives us:

F ≈ 1.0792 N

Now, we can calculate the electric field strength:

E = F / q

\(\[E = \frac{{1.0792 \, \text{N}}}{{3.0 \times 10^{-9} \, \text{C}}}\]\)

E ≈ 359,733,333 N/C

Rounded to the appropriate number of significant figures, the strength of the electric field is approximately\(\[3.6 \times 10^8 \, \text{N/C}\]\).

Therefore, the correct answer is \(\[3.6 \times 10^8 \, \text{N/C}\]\)

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Answer:

A

Explanation:

Answer:

101201.2 Pascal.

Explanation:

Given that the difference h between the two liquid levels is 2.0 cm. The density of the liquid is 800 kg /m3.

Calculate the difference between the pressure of the gas and atmospheric

pressure.

The pressure of the gas can be calculated by using the formula

Pressure = density × acceleration due to gravity × height

Substitute all the parameters into the formula

Pressure = 800 × 2/100 × 9.8

Note that the height is converted to metre.

Pressure = 156.8 Pascal

pressure difference = 101358 - 156.8

Pressure difference = 101201.2 Pascal

The sports car moving at constant speed that travels 110 m in 5.4 s , then brakes and comes to a stop in a time of 3.7 s, have an acceleration of: -5 m/s²

The formula and procedure we will use to solve this exercise is:

Where:

Information about the problem:

Applying the velocity formula we get the (vi):

v = x/t

vi = 110 m / 5.4 s

vi = 20.37 m/s

Applying the acceleration formula we have:

a = (vf - vi) /t

a = (0 m/s - 20.37 m/s) /3.7 s

a = (-20.37 m/s) /3.7 s

a = -5 m/s²

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

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a: The temperature difference in degrees Celsius is less than 20∘C. The answer is (c) Less than.

b. The explanation (a) is the correct one. Temperature differences are not the same in all temperature scales, and converting from one scale to another requires a specific formula.

Part A:

To convert from Fahrenheit (∘F) to Celsius (∘C), we use the formula:

ΔTC=59(ΔTF)

where ΔTC is the temperature difference in degrees Celsius and ΔTF is the temperature difference in degrees Fahrenheit.

Using this formula, we have:

ΔTC = 59(20) ≈ 11.11∘C

Part B:

The formula for converting temperature differences from Fahrenheit to Celsius is ΔTC=59(ΔTF), as used in Part A.

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The temperature difference in degrees Celsius is less than 20 C∘. The answer is (c) Less than.

The temperature difference is less than 20 C∘ because ΔTC=59(20∘F)=11∘C.

Part A: The temperature difference in degrees Celsius can be found using the formula ΔTC=59(ΔTF), where ΔTF is the temperature difference in degrees Fahrenheit and ΔTC is the temperature difference in degrees Celsius. Substituting the given values, we get ΔTC=59(20∘F)= -6.7∘C (rounded to one decimal place). Therefore, the temperature difference in degrees Celsius is less than 20 C∘. The answer is (c) Less than.

Part B: The explanation (a) is correct. The conversion factor 59 is used to convert temperature differences in degrees Fahrenheit to degrees Celsius. This is because the size of one degree Fahrenheit is 1/59th of one degree Celsius. Therefore, the temperature difference in degrees Celsius is smaller than the temperature difference in degrees Fahrenheit. The answer is (a) The temperature difference is less than 20 C∘ because ΔTC=59(20∘F)=11∘C.

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The change in entropy of 1.0 kg of steam at 100°C when it condenses to water at 100°C can be calculated using the formula ΔS = Q/T, which results in a value of 6.1 × 103 J/K, option B.

The change in entropy can be calculated using the formula ΔS = Q/T, where Q is the heat transferred to or from the system, and T is the temperature at which the heat transfer occurs. In this case, we can use the latent heat of the vaporization of water to calculate the amount of heat required to convert 1.0 kg of steam at 100°C to water at 100°C. The latent heat of the vaporization of water is given as \(22.6 × 10^5 J/kg\). Therefore, the amount of heat required to convert 1.0 kg of steam to water is \(22.6 × 10^5 J\). Since the temperature remains constant during the phase change, the change in temperature is zero, and the change in entropy is given by \(ΔS = Q/T = (22.6 × 10^5 J)/(373 K) = 6.06 × 10^2 J/K\).

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Answer:

Copper is the correct answer

Explanation:

Copper is very strong in situations where it is put in place and not stressed. Like all metal products, you can tear a whole in a copper pipe when it is under constant stress. That might seem obvious, but the thing about using it as pipe material is that some people try to cheat and bend copper into place if they don't measure properly and wind up with a piece that is bit too big or a bit too small.

Hope it helps pls mark me as BRAINLIST :)

Answer:

Answer:- Volume of the balloon is 5.78 L.

Solution:- There are 0.24 moles of hydrogen gas in a balloon at 35 degree C and 1.05 atm pressure. It asks to calculate the volume of the balloon.

This problem is based on ideal gas law equation:

P = 1.05 atm, n = 0.24 mole, T = 35 + 273 = 308 K

R =

V = ?

The equation could be rearranged for the volume as:

Let's plug in the values and do the calculations to get the volume of the balloon:

V = 5.78 L

So, the volume of the gas balloon is 5.78 L.

Answer:

harry potter

Explanation:

A lot of damage to the Hogwarts school

The ecosystem stayed they same because the school was excluded

It took a bit of magic to rebuild it

A war is a catastrophic event because a lot of people die and get hurt and more people could be drafted and that would hurt the population

The magnitude of the tension in the string is T = m(g - a), where m is the rock's mass, g is the acceleration due to gravity, and a is the constant acceleration of the rock.

The tension (T) in the string holding the rock of mass (m) can be determined using Newton's second law of motion.

As the rock is being raised and slowing down with a constant acceleration (a) less than the acceleration due to gravity (g), it experiences two forces: gravitational force (mg) and tension force (T).

Since the rock is slowing down while being raised, the tension force must be less than the gravitational force. To find the net force acting on the rock, subtract the tension from the gravitational force:

F_net = mg - T.

According to Newton's second law, F_net = ma. Substitute the values to get:

ma = mg - T.

Now, solve for tension T:

T = mg - ma.

Since both terms have m, we can factor it out:

T = m(g - a).

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Answer:kinetic

Explanation:

real and inverted same size

Answer:

4.71 m/s

Explanation:

40.5:8.6= 4.71

Answer:

1) Please find attached, created with Microsoft Visio

2) The acceleration of the masses connected by the light string is 0.00735 m/s²

3) The tension in the cord is 0.147 N

4) The time it would take the block to go 1.2 m to the edge of the table is approximately 18.07 s

5) The velocity of the cart as soon as it gets to the edge of the table is 0.042 m/s

Explanation:

1) Please find attached, the required free body diagram, showing the tension, weight and frictional (zero friction) forces acting on the cart and the mass created with Microsoft Visio

2) The acceleration of the masses connected by the light string is given as follows;

F = Mass, m × Acceleration, a

The mass of the truck, M = 20.0 kg

The mass attached to the string, hanging rom the pulley, m = 0.0150 kg

The force, F acting on the system = The pulling force on the cart = The tension on the cable = The weight of the hanging mass = 0.0150 × 9.8 = 0.147 N

The pulling force acting on the cart, F = M × a

∴ F = 0.147 N = 20.0 kg × a

a = 0.147 N/(20.0 kg) = 0.00735 m/s²

The acceleration of the truck = a = 0.00735 m/s²

3) The tension in the cord = F = 0.147 N

4) The time, t, it would take the block to go 1.2 m to the edge of the table is given by the kinematic equation, s = u·t + 1/2·a·t²

Where;

s = The distance to the edge of the table = 1.2 m

u = The initial velocity = 0 m/s (The cart is assumed to be initially at rest)

a = The acceleration of the cart = 0.00735 m/s²

t = The time taken

Substituting the known values, gives;

s = u·t + 1/2·a·t²

1.2 = 0 × t + 1/2 ×0.00735 × t²

1.2 = 1/2 ×0.00735 × t²

t² = 1.2/(1/2 ×0.00735) ≈ 326.5306

t = √(1.2/(1/2 ×0.00735)) ≈ 18.07

The time it would take the block to go 1.2 m to the edge of the table = t ≈ 18.07 s

5) The velocity, v, of the cart as soon as it gets to the edge of the table is given by the kinematic equation, v² = u² + 2·a·s as follows;

v² = u² + 2·a·s

u = 0 m/s

v² = 0² + 2 × 0.00735 × 1.2 = 0.001764

v = √(0.001764) = 0.042

The velocity of the cart as soon as it gets to the edge of the table = v = 0.042 m/s.

Answer:

There's no answer I'm just taking points like you did me,  so thank you for your points I'll put them to good use ;)

The item would have a terminal velocity of 19 m/s.

Using the formula below, you can determine an object's final velocity given its starting velocity, acceleration, and time interval:

Final speed (v) equals the starting speed (u) plus acceleration (a) multiplied by time (t).

We'll enter the values into the formula now:

The starting speed (u) is 4 m/s.

Acceleration (a) equals 3 m/s2

Time (t) equals five seconds.

Final velocity (v) = 4 m/s + 3 m/s2 * 5 s

How to figure out the equation's right-hand side:

(15 m/s) plus (4 m/s) is the final velocity (v).

Simplifying:

Final speed (v) is equal to 19 m/s.

The object's terminal speed would be 19 m/s as a result.

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The statement that is not true is option D, which states that the horizontally-released ball has a greater speed than the other ball for the whole trip.

In fact, both baseballs have the same vertical acceleration due to gravity, and therefore they both have the same vertical component of velocity as they reach impact, which is determined solely by the height from which they were dropped.

While in the air, the horizontal component of velocity of the horizontally-released ball remains constant, as there is no force acting on it in the horizontal direction. On the other hand, the horizontal component of velocity of the dropped ball increases at the same rate as the vertical component of velocity, due to the acceleration of gravity.

Both baseballs hit the ground at the same time because they have the same vertical acceleration and started falling from the same height.

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The quote which best reveals why Sowers was successful in achieving her goal is "Make sure i'm not the last."

A goal can be defined as an outcome statement and strategic objectives that defines what an individual or a group of people (team) hopes to successfully achieve (accomplish) in the future i.e over a specific period of time.

This ultimately implies that, a goal is simply a futuristic idea or desired result that an individual envision, plan and commit to achieve over a specific period of time.

In this context, Katie Sowers a superbowl coach, set a goal for herself with the quote "Make sure i'm not the last" and she was quite successful in achieving her goal.

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The value of the normal force is 3.9 x 10² newtons.

The correct answer is option C.

The coefficient of static friction between the crate and the floor is 0.11. The crate just starts moving after the force of 43 N is applied by Mary and Anne. Therefore, the force of friction that acts on the crate is equal to the maximum value of static friction, which is given by the product of the coefficient of static friction and the normal force.

The force of friction is given by: f = μN

where f is the force of friction, μ is the coefficient of static friction and N is the normal force acting on the crate.

Since the crate just starts moving, the applied force must overcome the maximum force of static friction.

Therefore, we have:

f = μNmax

and F applied = F required to overcome friction

= μNmax= 0.11 N

Thus, the maximum value of the normal force acting on the crate is given by:

Nmax = F/f = 43/0.11 = 390.9 N ≈ 3.9 x 10² N

Therefore, the value of the normal force is 3.9 x 10² newtons.

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Answer:

4

Explanation:

Not all plants can grow flowers. Only the ones thay have buds can.

Not all plants produce flowers. Hence, this is the characteristic which is not common in all plants.Therefore, the correct option is 4.

Flowers are the structures of plants. They are responsible for producing seeds that will grow into new plants. Flowers typically consist of a colorful or ornamental part called the corolla, which attracts pollinators such as bees and butterflies, and a reproductive part called the stamen and pistil, which contain the plant's male and female organs.

Not all green plants produce flowers. Flowering plants are a type of plant that belong to the group Angiosperms, but there are also non-flowering plants like ferns and mosses that do not produce flowers. Therefore, the correct option is 4.

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Using the gravitational force, the mass of item 1 and object 2, and the Newton's law of gravity calculator, one may calculate the distance between two objects.

g = GM/r2, where M is the Earth's mass, r is its radius (or the distance from the Earth's center to where you are standing), and G is the gravitational constant. The gravitational constant is G (without the subscripts), while the speed of light is c.

By applying Newton's equation, we can accomplish this quite easily: forcegravity is defined as G M m2 separation. Suppose that you weigh 60 kilograms and your colleague weighs 70 kilograms. The center-to-centre distance, r, is 1 m, and the gravitational constant, G, is 6.67 10 -11 newtons square meter kilogram-2.

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Answer:

I think your answer would be D

Explanation:

Answer:

Loudness is the intensity of volume.  

Explanation:

When I say volume, that means the rate of sound.

A balloon is filled with pure carbon dioxide. gaseous terms could be used to describe the contents of this balloon

At ambient temperature, carbon dioxide, which has the chemical formula CO2, is a chemical compound that consists of molecules with one carbon atom covalently doubly linked to each of two oxygen atoms. the carbon dioxide. Names. various names. Gaseous carbonic acid

Carbon dioxide (CO2) is produced by both natural (such as volcanoes, animal breath, and plant degradation) and anthropogenic sources (primarily the burning of fossils fuels like coal, oil and natural gas to generate energy).

Too much carbon dioxide in the body can result in general symptoms including headache, exhaustion, and twitching muscles. Frequently, it goes away fast on its own. But in cases of severe hypercapnia, the body is unable to return to a stable CO2 level, and the symptoms are more severe.

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The statement "The center of gravity has nothing to do with truck rollovers" is a FALSE statement.

The center of gravity is the point at which the mass of an object is concentrated and all weight appears to act through one point. It plays a significant role in vehicle rollovers.  The higher the center of gravity, the more likely a truck is to roll over during a turn or sudden maneuver. This is because the weight of the truck is distributed unevenly, causing it to be more unstable.

Trucks with a lower center of gravity, on the other hand, are less likely to roll over because the weight is distributed more evenly and the vehicle is more stable. Therefore, the center of gravity is an important factor to consider when it comes to truck rollovers.

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