Ball A is negatively charged and ball B is electrically neutral. What happens to the charges of both balls when they come into contact with each other if:
(a) they are made of an electrical conductor
describe what will happen
(b) they are made of insulator
describe what will happen

Answer:

700 N right -->

800- (60+40)

800-100

700 N

Answer:1725 watts

Explanation: Household devices are required to run at 110-125 volts and most are rated at 115 volts so 1725 watts for a 15 amp cord or circuit. You will have to be careful when adding outlets for a 15 amp breaker. Always be sure to consult a licensed electrician before DIY electrical work.

Hence,the time it takes the second cyclist to catch up to the first cyclist will be 2.6 h.

The change of displacement with respect to time is defined as the velocity.  Velocity is a vector quantity. it is a time-based component.

\(\rm D_{rel}= V_{rel}\times t_{rel} \\\\ \rm D_{rel}= (V_1-V_2)\times t_{rel} \\\\ T_{rel}=\frac{D_{rel}}{V_1-V_2} \\\\ T_{rel}=\frac{20.8}{28-20} \\\\ T_{rel}= 2.6 \ h\)

The time it takes the second cyclist to catch up to the first cyclist will be 2.6 h.

To learn more about the velocity refer to the link ;

https://brainly.com/question/862972

#SPJ1

Answer:

a ≈ \(2.657360411*10^{-3}\) m/s^2

Explanation:

Let's convert the values into SI unit.

r = 3.8*10^5 km = 3.8*10^8 m

T = 27.5 days =  2376000 seconds

Now, apply the equation \(T = \frac{2\pi r}{v}\)

\(v = \frac{2\pi(3.8e8) }{2376000}\)

v ≈ 1004.886539 m/s

Now, apply the equation \(a = \frac{v^{2} }{r}\)

\(a = \frac{1004.886539^{2} }{3.8e8}\)

a ≈ \(2.657360411*10^{-3}\) m/s^2

The centripetal acceleration of moon is 26.28 x 10⁻¹⁰rad/s².

Centripetal acceleration of an object is the acceleration it acquires while following a circular path.

Here,

Radius of the circular path, r = 3.8 x 10⁸m

Period of revolution, T = 27.5 days = 23.8 x 10⁸s

The expression for angular velocity is given as,

ω = 2\(\pi\)/T

ω = 2 x 3.14/(23.8 x 10⁸)

ω = 2.63 x 10⁻⁹rad/s

Therefore, the centripetal acceleration of moon,

a = rω²

a = 3.8 x 10⁸x (2.63 x 10⁻⁹)²

a = 26.28 x 10⁻¹⁰rad/s²

Hence,

The centripetal acceleration of moon is 26.28 x 10⁻¹⁰rad/s².

To learn more about centripetal acceleration, click:

https://brainly.com/question/14465119

#SPJ2

The mass of methane will produce as much energy as a single gram of uranium-235 1,287 kilograms of methane. Option D is correct.

Uranium, with the atomic number 92 and the symbol U in the periodic table, is a weakly radioactive element. One of the heavy metals that may be used as a concentrated energy source is uranium.

Given data;

⇒One mole of U-235 = 235 grams

=> 1 gram of U-235 = 1/235 moles

⇒1 mole of U-235 = 6.023 x 10²³ atoms

The no of atoms is;

=> 1/235 moles of U-235

⇒N = 6.023 x 10²³/235 atoms

⇒N=25.6 x 10²⁰ atoms

If one atom of U-235 gives is 189 x 10⁶ eV energy,25.6 x 10²⁰ atoms of U-235 gives;

=> 25.6 x 10²⁰ atoms of U-235 gives;

E = 25.6 x 10²⁰ x 189 x 10⁶

E= 4.8 x 10²⁹ eV energy

One methane molecule produces;

E = 10 eV of energy

=> To produce 4.8 x 10²⁹ eV energy, no. of molecules required;

= 4.8 x 10²⁸

6.032 x 10²³ molecules of methane = 16 gms

=> 4.8 x 10²⁸ molecules of methane = 16 x 4.8 x 10²⁸/ 6.032 x 10²³ gms

m= 12.75 x 10⁵ gms

m= 1275 kilograms of methane

m≅ 1287 kilograms of methane

1 gram of U-235 has the same amount of energy as 1287 kilograms of methane.

Hence option D is correct,

To learn more about uranium refer to the link;

https://brainly.com/question/9099776

#SPJ1

The speed of the pulse is v = (2nL) / t and The tension F is F = (4n^2L^2M) / t^2

(a)

Total distance = 2nL

Total time = t

Therefore, the speed of the pulse is:

v = (2nL) / t

(b)

v = sqrt(F/μ)

where μ is the linear mass density of the clothesline, given by:

μ = M/L

Substituting the expression for v from part (a), we get:

(2nL) / t = sqrt(F / (M/L))

Squaring both sides and solving for F, we get:

F = (4n^2L^2M) / t^2

Therefore, The speed of the pulse is v = (2nL) / t and The tension F is F = (4n^2L^2M) / t^2

To know more about speed of pulse and tension refer:

https://brainly.com/question/22984269

#SPJ11

As the cart moves through the magnetic field, an electromotive force (EMF) is induced in the copper wire loop, according to Faraday's law of electromagnetic induction. This phenomenon is known as electromagnetic induction.

The magnetic field and the moving charges in the wire loop interact to produce the EMF. The right-hand rule states that if you point your fingers in the direction of the magnetic field and your palm in the direction of the induced current, your thumb will point in the direction of the speed of the cart. Positive charges, such as the flow of positive charges in a typical current, are covered by this rule.

The following equation can be used to determine the induced EMF in the copper wire loop:

EMF = B * L * v, where: L is the length of the wire loop that is perpendicular to the magnetic field, B is the strength of the magnetic field (measured in teslas), and v is the electromotive force that is being induced.

For more such questions on Electrmagnetic induction

https://brainly.com/question/30532137

#SPJ11

Answer:

G.P.E  = 414050 Joules or 414.05 Kilojoules

Explanation:

Given the following data;

Mass = 65 kg

Height = 650 m

We know that acceleration due to gravity is equal to 9.8m/s²

To find the gravitational potential energy;

Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.

Mathematically, gravitational potential energy is given by the formula;

\( G.P.E = mgh\)

Where;

Substituting into the equation, we have;

\( G.P.E = 65 * 9.8 * 650 \)

\( G.P.E = 414050 \)

G.P.E  = 414050 Joules or 414.05 Kilojoules.

The long time will decrease the velocity which will equally decrease the impulse applied to your knee.

The impulse experienced by an object is the change in momentum of the object.

J = ΔP = m(v - u)

where;

v = distance / time

when time of fall becomes 3 times long, the final velocity becomes 3 times smaller

Since the velocity will be reduced, the impulse applied to your knee will decrease as well.

Learn more about impulse here: https://brainly.com/question/25700778

#SPJ1

Answer:

there is you just have to look harder

Explanation:

Answer:

i dont undertsnad what do u ned hep wit?

Explanation:

Answer:

[Speed] or [Velocity (if there is a direction)]

Answer:

Heat energy

Explanation:

Explanation:

heat energy or thermal energy

Answer:

Fe = 7.98*10^5N/C

Explanation:

In order to calculate the electric force between the two charges you use the following formula:

\(F_e=k\frac{q_1q_2}{r^2}\)           (1)

k: Coulomb's constant = 8.98*10^9Nm^2/C^2

q1 = 2mC = 2*10^-3C

q2 = 4mC = 4*10^-3C

r: distance between the charge = 30cm = 0.3m

You replace the values of the parameters in the equation (1):

\(F_e=(8.98*10^9Nm^2/C^2)\frac{(2*10^{-3}C)(4*10^{-3}C)}{(0.3)^2}\\\\F_e=7.98*10^5\frac{N}{C}\)

The force between the charges q1 and q2 is 7.98*10^5N/C

A) Minimum recommended spiral parameter: 150.03m.

b) Distance P: 150.03m.

c) Distance Q: 4.122m.

d) Angle Φs: 16°30'14.0".

e) Distance Tc: 150.03m.

a) Calculation for the minimum recommended spiral parameter:

Design radius (R) = 300 m

Maximum superelevation (e_max) = 0.06 m/m

Spiral Parameter (A) = (R + e_max) / 2

A = (300 m + 0.06 m/m) / 2

A ≈ 150.03 m

b) Calculation for the distance P:

Distance P is equal to the length of the first spiral curve, which is the same as the minimum recommended spiral parameter.

P ≈ 150.03 m

c) Calculation for the distance Q:

Distance Q represents the length of the circular curve. It is given by the formula:

Q = (Deflection angle at Point of Intersection) / (Degree of Curve, D)

Deflection angle at Point of Intersection = 16°30'14.0"

Converting the angle to decimal degrees:

16° + (30'/60) + (14.0"/3600) = 16.504°

Q = 16.504° / (360° / D)

Q ≈ D / 21.814

Since the RAU80 has 4 lanes, the degree of curve (D) is 360° / 4 = 90°.

Q ≈ 90° / 21.814

Q ≈ 4.122 m

d) Calculation for the angle Φs:

The angle Φs is the deflection angle at the Point of Intersection.

Φs = 16°30'14.0"

e) Calculation for the distance Tc:

Distance Tc is equal to the length of the second spiral curve, which is the same as the minimum recommended spiral parameter.

Tc ≈ 150.03 m

learn more about superelevation Here:

https://brainly.com/question/29679195

#SPJ4

Answer:

Explanation:

Mass of the two objects effects gravity and so does the distance between them squared

Answer:

a = 6.4 [m/s²]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration. In this way, we have the following equation.

∑F = m*a

where:

∑F = sum of forces (horizontal force = 40 [N] and friction force = 8 [N])

m = mass of the block = 5 [kg]

a = acceleration [m/s²]

Now replacing:

\(40-8=5*a\\32 = 5*a\\a=6.4[m/s^{2} ]\)

Note: the sign of the friction force is negative since this force is acting against the movement of the block.

Answer:

i. rubbing the material against a magnet

ii. placing the material in a magnetic field of opposite polarity

iii. placing the material near a strong magnet

Explanation:

Ferromagnetic materials are majorly metals which can be easily attracted by a magnet. ferromagnetic materials are made up of domains, behaves as minute pieces of magnet. They can be rearranged to align when under the influence of an external magnetic field.

The alignment of the domains in a ferromagnetic material can be caused by either of the following: rubbing the material against a magnet, placing the material in a magnetic field of opposite polarity, placing the material near a strong magnet.

Answer:

B, D, E

Explanation:

edg2020

Answer:

C

Explanation:

thats what i think it depends on the amount of force someone dropped the ball with.

Answer: A) "Less than 60 centimeters, as the ball transforms a part of its potential energy into heat energy"

Explanation:

I took the test

The magnitude of the force at this distance of 2.0 m is 25.6 N.

The force between two charges q1 and q2 separated by a distance r is given by Coulomb's law:

F = k (q1 q2)/r^2

where k is the electrostatic constant (9 x 10^9 Nm^2/C^2).

In this problem, the distance is 1.0 m and the magnitude of the force is 104 N, so we can solve for the charge on each particle:

104 N = (9 x 10^9 Nm^2/C^2) (q1 q2) / 1.0 m^2

q1 q2 = 104 N / (9 x 10^9 Nm^2/C^2)

q1 q2 = 1.2 x 10^-7 C^2

Since the magnitudes of the charges are equal, q1 = q2 = q, so we can solve for q:

q^2 = 1.2 x 10^-7 C^2

q = 3.4 x 10^-4 C

Now that we know the charge on each particle, we can calculate the force when the separation is doubled to 2.0 m:

F = (9 x 10^9 Nm^2/C^2) (q1 q2) / (2.0 m)^2

F = (9 x 10^9 Nm^2/C^2) (3.4 x 10^-4 C)^2 / (2.0 m)^2

F = 25.6 N

For more questions like Force click the link below:

https://brainly.com/question/13160623

#SPJ4

Answer:

0J

Explanation:

The gravitational potential energy of the body is 0J because the height is at 0m.

Gravitational potential energy is a form of energy which is highly dependent on the position of a body. The relative position of a body in space accounts for the amount of gravitational potential energy they posses.

 Gravitational potential energy  = mgh

       m is the mass of the body

       g is the acceleration due to gravity

       h is the height

 So, if h = 0, Gravitational potential energy will become 0.

Answer:

348

Explanation:

because maths ;)

The box of macaroni are in the shape of a cuboid, and the volume of the cuboid in the same unit will be 348 cm.

A three-dimensional space's volume can be calculated.  It is frequently expressed in numerical form using SI-derived units or by different imperial units (such as the gallon, quart, and cubic inch). Volume and length are related by the definition of length (cubed). In contrast to how much space the container occupies, the volume of a container is typically thought of as its carrying capacity or the amount of fluid (liquid or gas) that it could hold.

According to the question, the given values are :

Length, l = 16 cm

Width, b = 7.5 cm

Height, h = 2.9 cm

So, the volume of the Cuboid will be, V : l × b × h

V = 16 × 7.5 × 2.9

V = 348 cm³.

Hence, the volume of macaroni box will be 348 cm³.

To get more information about Volume :

https://brainly.com/question/1578538

#SPJ2

The combined kinetic energy of the cyclist and cycle is 6120 J. It takes 34 seconds for the kinetic energy of the cyclist and cycle to increase by 6120 J at a rate of 180 J/s.

Kinetic energy has the following formula: K.E. (= 1/2 m v2, where m is the object's mass and v is its square velocity. The kinetic energy is measured in kilograms-meters squared for every second squared if the mass is measured in kilogrammes and the velocity is measured in metres per second.v

f =12× 15= 310 m/s

The initial velocity is given asv i =6× 5= 35 m/s

The increase in kinetic energy is given as,

ΔKE= 21 m(v f −v i2 )= 21 ×90(( 310 ) 2 −( 35 ) 2 )=375J

Thus, the increase in kinetic energy is 6120J

Total mechanical energy is represented by the sum of potential and kinetic energy. The energy an object has as a result of its motion or position is known as mechanical energy. Kinetic energy is the energy of motion, and potential energy is the energy in position or shape.

To know more about kinetic energy visit:

https://brainly.com/question/999862

#SPJ1

The correct answer is the specific heat of the metal in question is 0.301 J/g·ºC.

The specific heat of a substance is the amount of heat required to raise the temperature of one gram of the substance by one degree Celsius. To find the specific heat of the metal in this scenario, we need to use the formula:

q = mcΔT

where q is the amount of heat absorbed, m is the mass of the substance, c is its specific heat, and ΔT is the change in temperature.

In this case, we know that the metal absorbed 10000 J of heat energy, had a mass of 400.0 g, and its temperature rose from 20.0 ºC to 103.0 ºC. Therefore, we can plug these values into the formula:

10000 J = (400.0 g) x c x (103.0 ºC - 20.0 ºC)

Simplifying this equation, we get:

10000 J = 33200 g·ºC x c

Dividing both sides by 33200 g·ºC, we get:

c = 0.301 J/g·ºC

Therefore, the specific heat of the metal in question is 0.301 J/g·ºC.

In simpler terms, this means that the metal requires 0.301 J of energy to raise the temperature of one gram of the metal by one degree Celsius.

The specific heat value is an important property of a substance, as it can help us determine how much energy is needed to heat or cool the substance, and how it will behave in different conditions.

To know more about specific heat here

https://brainly.com/question/11297584

#SPJ11

Answer:

The geosphere consists of the solid Earth and the atmosphere consists of the gaseous components in the air. Thus, the answer is C.

Explanation:

Answer:

C

Explanation:

Answer:

0.389 meters per second

Explanation:

1. Get your knowns

a. 40 meters per 120 seconds

b. 30 meters per 60 seconds

2. Add

Total distance = 40 meters + 30 meters = 70 meters

Total time = 120 seconds + 60 seconds = 180 seconds

3. Divide

Average velocity = 70 meters / 180 seconds

= 7 meters / 18 seconds

= 0.388... meters per second

For the book to move in the direction of the movement arrow, a force in the direction of the desired movement must be applied causing the forces to be unbalanced.

option D is the correct answer.

Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that path unless it is acted upon by an external force and it will move in the direction of the applied force.

Also, from Newton's second law of motion, which states that the force applied to an object is directly proportional to the product of mass and acceleration of the object.

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

F (net) = ma

F - Ff = ma

where;

Thus, for the book to move, the force of friction must be overcame by the applied force and this create an unbalanced force acting on the book. Also, the book will move in the direction of the net force acting on it.

Learn more about applied force here: https://brainly.com/question/24255032

#SPJ1

Answer:

a) El caudal de salida del chorro es \(1.213\times 10^{-3}\,\frac{m^{3}}{s}\).

Explanation:

a) Asúmase que el tanque se encuentra a presión atmósferica y que la sima del tanque tiene una altura de 0 metros. La rapidez de salida del chorro del depósito se determined a partir del Principio de Bernoulli, cuya línea de corriente entre la cima y la sima del tanque queda descrita por la siguiente ecuación:

\(\Delta z = \frac{v_{out}^{2}}{2\cdot g}\)

Donde:

\(\Delta z\) - Diferencia de altura, medida en metros.

\(g\) - Constante gravitacional, medida en metros por segundo al cuadrado.

\(v_{out}\) - Rapidez de salida del chorro, medida en metros por segundo.

Se despeja la rapidez de salida del chorro:

\(v_{out} = \sqrt{2\cdot g \cdot \Delta z}\)

Si \(g = 9.807\,\frac{m}{s^{2}}\) y \(\Delta z = 0.3\,m\), entonces la rapidez de salida del chorro es:

\(v_{out} = \sqrt{2\cdot \left(9.807\,\frac{m}{s^{2}} \right)\cdot (0.3\,m)}\)

\(v_{out} \approx 2.426\,\frac{m}{s}\)

Ahora, la cantidad de líquido que sale del depósito por unidad de tiempo se obtiene al multiplicar la rapidez de salida del chorro por el área transversal del orificio. Esto es:

\(\dot V_{out} = v_{out}\cdot A_{t}\)

Donde:

\(v_{out}\) - Rapidez de salida del chorro, medida en metros por segundo.

\(A_{t}\) - Área transversal del orificio, medido en metros cuadrados.

\(\dot V_{out}\) - Caudal de salida del chorro, medido en metros cúbicos por segundo.

Dado que \(v_{out} = 2.426\,\frac{m}{s}\) y \(A_{t} = 5\,cm^{2}\), el caudal de salida del chorro es:

\(\dot V_{out} = \left(2.426\,\frac{m}{s} \right)\cdot (5\,cm^{2})\cdot \left(\frac{1}{10000}\,\frac{m^{2}}{cm^{2}} \right)\)

\(\dot V_{out} = 1.213\times 10^{-3}\,\frac{m^{3}}{s}\)

El caudal de salida del chorro es \(1.213\times 10^{-3}\,\frac{m^{3}}{s}\).

The energy is negative and in the order of\(10^-6\)  J, we can express it as -36 µJ.

Therefore, the correct answer is D) -36 µJ.

We need to find the electric potential energy of a -3.0 µC charge placed at a point with an electric potential of 12 V.

We can use the formula:
Electric potential energy (U) = Charge (q) × Electric potential (V)
First, we need to convert the charge from µC to C:
\(-3.0 \mu C = -3.0 * 10^-6 C\)
Now we can plug the values into the formula:
\(U = (-3.0 *  10^-6 C) *  (12 V)\)
\(U = -36 * 10^-6 J.\)

Therefore, the correct answer is D) -36 µJ.

For similar question on energy.

https://brainly.com/question/30285686

#SPJ11