Force between two charged is 32.81 if charge one of object is double a distance between them is double what is new force
2nd question: force between two charged is 46.66 if distance between the objects is double what is the new force
Answers
If the charge of one of the objects is double and the distance between them is also double, then the new force can be found using Coulomb's law:
F = k * (q1 * q2) / r^2
where F is the force between the charges, k is the Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.
Let's assume that the charges on the two objects are q1 and q2, with q1 being double the charge of q2. The distance between them is 2r, where r is the original distance.
Using the formula, we can write:
F = k * (q1 * q2) / r^2
The new force F' can be found by substituting q1 with 2q2 and r with 2r:
F' = k * (2q2 * q2) / (2r)^2
F' = k * 2 * q2^2 / 4r^2
F' = k * q2^2 / 2r^2
The new force is equal to half the original force, or 16.405 N (assuming the original force is in Newtons).
Second question:
If the distance between the objects is doubled, the new force can be found using the inverse-square law of Coulomb's law:
F' = F * (r / 2r)^2
where F is the original force and r is the original distance.
Simplifying this equation, we get:
F' = F / 4
Therefore, the new force is one-fourth of the original force. In this case, the new force would be 46.66 / 4 = 11.665 N (assuming the original force is in Newtons).
Explanation:
Eforce = C q1 q2 / r^2 now double q1 and double r
Eforce = C 2 q1 q2 / (2r)^2
EForce = C 2 q1 q2 / (4 r^2)
EForce = 2/4 C q1 q2 / r^2 <=====this shows the NEW force is 1/2 the original
1/2 * 32.81 = 16.41 units
2nd) Similarly this will result in 1/4 the original force
1/4 * 46.66 = 11.67 units
Related Questions
A force of 6.1 N acts on a 18 kg body initially at rest. Compute the work done by the force in (a) the first, (b) the second, and (c) the third seconds and (d) the instantaneous power due to the force at the end of the third second.
Answers
The work done by the force in the first second is 1026J. The work done by the force in the second is 5.125 J. The work done by the force in the third second is 3.080 J. The instantaneous power due to the force at the end of the third second is 87 W.
v = at = (6.1 N) / (18 kg) * 1 s = 0.3389 m/s
The kinetic energy of the body after the first second is
K = (1/2) * m * v² = (1/2) * (18 kg) * (0.3389 m/s)² = 1.026 J
The work done by the force in the first second is:
W = K - 0 = 1.026 J
(b) In the second, the velocity of the body is:
v = at = (6.1 N) / (18 kg) * 2 s = 0.6778 m/s
The kinetic energy of the body after the second is:
K = (1/2) * m * v² = (1/2) * (18 kg) * (0.6778 m/s)² = 6.151 J
The work done by the force in the second is:
W = K - 1.026 J = 5.125 J
(c) In the third second, the velocity of the body is:
v = at = (6.1 N) / (18 kg) * 3 s = 1.0167 m/s
The kinetic energy of the body after the third second is:
K = (1/2) * m * v² = (1/2) * (18 kg) * (1.0167 m/s)² = 9.231 J
The work done by the force in the third second is:
W = K - 6.151 J = 3.080 J
(d) v = at = (6.1 N) / (18 kg) * 3.001 s = 1.0198 m/s
The kinetic energy of the body at that instant is:
K = (1/2) * m * v² = (1/2) * (18 kg) * (1.0198 m/s)² = 9.318 J
The work done by the force in a very short interval of time is:
dW = K - 9.231 J = 0.087 J
Therefore, the instantaneous power due to the force at the end of the third second is:
P = dW / dt = 0.087 J / 0.001 s = 87 W
Work is defined as the energy transferred to or from an object by means of a force acting on the object as it moves along a certain distance. Work is expressed as the product of the force and the displacement of the object in the direction of the force. The SI unit of work is the joule.
Work can be done by various forces, including gravitational, electric, and magnetic forces. For example, work is done when an object is lifted against the force of gravity, when an electric current flows through a circuit, or when a magnetic field changes around a conductor.
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What are the two steps required to charge an object without any physical contact between charged objects
Answers
There are two main methods for charging an object without any physical contact between charged objects namely induction and Coulombic attraction/repulsion.
Induction is a process by which a charged object can influence the distribution of charges in a nearby conductor without actually touching it. When a charged object is brought near a conductor, it causes the electrons in the conductor to rearrange themselves in an effort to balance out the overall charge distribution. This can result in one end of the conductor becoming positively charged and the other end becoming negatively charged.
Coulombic attraction/repulsion is a phenomenon that occurs when two charged objects are brought close together. According to Coulomb's Law, if the two objects have opposite charges (e.g. one is positive and the other is negative), they will experience a force of attraction. If the two objects have the same charge (e.g. both are positive or both are negative), they will experience a force of repulsion.
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Your question seems incorrect, but I assume the correct question was:
"What are the two main methods to charge an object without any physical contact between charged objects?"
Thumper (a rabbit) runs and jumps on a frozen lake, sliding at 8 m/s. He slides for 12 s before coming to a stop. What is the coefficient of kinetic friction between Thumper and the ice
Answers
The coefficient of kinetic friction between Thumper and the ice is determined as 0.1.
Coefficient of kinetic frictionThe coefficient of kinetic friction between Thumper and the ice is determined as follows;
μk = a/g
where;
a is accelerationg is acceleration due to gravitya = v/t
a = 8/12
a = 0.667 m/s²
μk = a/g
μk = 0.667/9.8
μk = 0.1
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4. A 2.00 kg object is accelerated uniformly from rest to 3.00 m/s while moving 1.5 m across a
level frictionless surface. Calculate the power output.
Answers
The power output of 2.00 kg object is accelerated uniformly from rest to 3.00 m/s while moving 1.5 m across a level frictionless surface is 24.09 watts.
What is power?In science, power is the time required to do work or provide energy, expressed as work done W or energy transferred divided by the time interval t - or W/t. A fixed amount of work can be done for a long time with a low-powered engine, or for a short time with a high-powered engine. The unit of power is work (or energy) per unit of time. Such as foot pounds per minute, joules (or watts) per second, and ergs per second. Force can also be expressed as the product of the force required to move an object and the object's velocity in the direction of the force. If the magnitude of the force F is measured in pounds and the velocity ν is measured in feet per minute, then the power is equal to Fν foot pounds per minute.
Given,
Mass of object (m) = 2.00 kg
Distance covered (s) = 1.5 m
Velocity of object (v) = 3.00 m/s
For calculation of acceleration:
v² = u² + 2as
3² = 0 + 2 × a × 1.5
9 = 3a
a = 2 m/s²
For calculation of time:
s = ut + ¹/₂at²
1.5 = 0 × t + ¹/₂ × 2 × t²
1.5 = t²
t = 1.22 sec.
For calculation of gravitational force:
F = mg
F = 2 × 9.8
F = 19.6 N
For calculation of work done:
W = F × s
W = 19.6 × 1.5
W = 29.4 J
For calculation of power output:
P = W/t
P = 29.4/1.22
P = 24.09 watts
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Give two ways that vegetable oil is different from fat
Answers
Answer:
In simple terms, fats are animal fats whereas oils are vegetable oils. The other difference is fats tend to be solids at room temperature; on the other hand, oils tend to be liquid at room temperature.
Explanation:
HELP ME 10 POINTS
A student gets ready to go to school one day, and he finds out that his car's battery is dead. The headlights will not come on, and the car won’t start. What transformations usually happen when the battery is active and the headlights come on?
1. chemical → electrical → light
2. electrical → kinetic → light
3. light → electrical → chemical
4. thermal → electrical → light
Answers
Answer:
chemical - electrical- light
In a tank full of water, the pressure on a surface 2 meters below the water level is 1.5 kPA. What's the pressure on a surface 6 meters below the water level ?
Answers
Answer:
P = 40.7kPa
Explanation:
To find the pressure on a surface 6 meter below you use the following formula, which takes into account the heights in which pressures are measured and also the density of the fluid and the gravitational acceleration:
\(P_2-P_1=-\rho g(y_2-y_1)\) (1)
P2: pressure for a height of -6 m = ?
P1: pressure for a height of -2 m = 1.5kPa = 1500 Pa
ρ: density of water = 1000kg/m^3
g: gravitational acceleration = 9.8 ms^2
y2: -6m
y1: -2m
(the height is measure from the water level, because of that, the heights are negative)
You solve the equation (1) for P1:
\(P_1=P_2-\rho g(y_2-y_1)\) (2)
Next, you replace the values of all variables in equation (2):
\(P_2=1500Pa-(1000kg/m^3)(9.8m/s^2)(-6-(-2))m=40700Pa\\\\P_2=40.7kPa\)
hence, the pressure on a surface 6 m below the water level is 40.7kPa
Which characteristic of a sound is affected by the amount of energy used to create that sound? In what direction the sound will travel how fast or slow the sound travels in a particular medium how high or low the sound's pitch is how loud or soft the sound is
Answers
Answer:
The correct option is;
How loud or soft the sound is
Explanation:
The loudness of a sound wave is given by the amount of energy that the pressure wave carries and it is measured in decibels (dB) which is the relative intensity of the pressure wave of a sound to the standard pressure
A loud sound has a high amplitude and a soft sound has a low amplitude, such that as the amplitude of the sound is increased, due to increased energy input, the sound becomes louder, and as the amplitude of the sound is decreased due to reduced energy input, the sound becomes softer.
what is the current amplitude i in the series circuit shown if r=300 ω, l=60 mh, c=0.50 µf, v=50 v, and ω=10,000 rad/s? a. 0.63 a b. 10 a c. 0.10 a d. 100 a e. 0.50 a
Answers
The current amplitude i in the series is 0.0765 A.
The current amplitude i in a series circuit is given by the formula:
i = V/Z
where V is the voltage amplitude, and Z is the impedance of the circuit, which is given by:
Z = R + j(Xl - Xc)
where R is the resistance, Xl is the inductive reactance, and Xc is the capacitive reactance. The values of these parameters are given as follows:
R = 300 Ω
Xl = ωL = 10,000 rad/s x 60 mH = 600 Ω
Xc = 1/(ωC) = 1/(10,000 rad/s x 0.50 µF) = 20 Ω
Substituting these values into the impedance equation, we get:
Z = 300 + j(600 - 20) = 300 + j580 Ω
Taking the magnitude of Z, we get:
|Z| = √(300^2 + 580^2) = 651.8 Ω
Substituting this and the voltage amplitude V = 50 V into the formula for current amplitude, we get:
i = V/Z = 50/651.8 = 0.0765 A
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How does the observed pitch of the buzzer change as it moves towards the observer?.
Answers
The observed frequency increases and ear hears a higher pitch.
The Doppler Effect is the change in wave frequency caused by the relative motion of a wave source and its observer. Christian Johann Doppler discovered it and described it as the process of increasing or decreasing starlight based on the relative movement of the star.
The Doppler effect, also known as the Doppler shift, is a phenomenon that occurs when the source of waves moves in relation to an observer. A common physical demonstration of the Doppler Effect is an ambulance crossing you with its siren blaring. The Doppler effect is important in astronomy because it allows us to calculate the velocity of light-emitting objects in space, such as stars or galaxies.
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a 2.00 kg object is subjected to three forces that give it an acceleration . if two of the three forces are and , find the third force.
Answers
The third force = -(26.0Ni +12.00Nj) of the 2.00 kg object is subjected to three forces that give it acceleration.
In physics, a force is a power that can exchange the motion of an object. A pressure can reason an item with mass to exchange its velocity (e.g., transferring from a state of relaxation), i.e., to accelerate. force can also be defined intuitively as a push or a pull. A force has both value and course, making it a vector amount. its miles are measured in the SI unit of newton (N). pressure is represented through image F (previously P).
The original form of Newton's 2nd law states that the internet pressure acting upon an item is identical to the fee at which its momentum adjusts with time. If the mass of the object is constant, this regulation implies that the acceleration of an object is at once proportional to the net pressure appearing on the item, is inside the route of the net pressure, and is inversely proportional to the mass of the item.
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A human services professional has worked with a particular client for a couple of years. The client
seemed to be making good progress but has suddenly become resistant to suggestions to address
another area of his life. The code of ethics suggests that the human services professional should take
what action?
force the client to change
drop the client
respect the client's decision
report the client for being stubbom
Answers
Answer:
Respect the client’s decision
Explanation:
just took the test
Answer: Respect the client's decision
Explanation: Either way the professional would know not to do anything rash and it is the client's decision whether or not they want to move forward, it would have obviously been a touchy subject if they were that reluctant.
In general, which of the following is not a critical skill for participating in a sport? a. agility and balance b. endurance and muscle control c. hand-eye coordination and acuity d. none of the above please select the best answer from the choices provided. a b c d
Answers
Option D is not a critical skill for participating in a sport.
What are sports?Sport refers to any competitive physical activity or game[1] that intends to utilize, maintain, or enhance physical ability and skills while also giving enjoyment to players and, in certain situations, entertainment to spectators.
Agility and balance are crucial in sports such as soccer, especially when players dribble the ball at rapid speeds.
Endurance and muscular control are critical in sports such as gymnastics and boxing.
Hand-eye coordination and acuity are essential in sports like golf.
Hence Option D is not a critical skill for participating in a sport.
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Answer:
D
Explanation
some answer now hurry
Answers
Answer:
Hee answer is B
Explanation:
____________.
A 23-N force is applied to a 7-kg object to move it with a constant velocity of 6.1 m/s across a level surface. The coefficient of friction between the object and the surface is approximately ____. Round your answer to the hundredths place.(Use the approximation g ≈ 10 m/s2.)
Answers
Given:
The applied force is F = 23 N
The mass of the object is m = 7 kg
The object moves with a constant velocity of v = 6.1 m/s
The acceleration due to gravity is g = 10 m/s^2
Required: The coefficient of friction between the object and the surface.
Explanation:
The object moves at a constant velocity, so the acceleration will be zero.
The equation of motion can be written as
\(\begin{gathered} F-f\text{ = ma} \\ F-f\text{ =m}\times0 \\ F-f=0 \\ F=f \end{gathered}\)So, the applied force will be equal to the frictional force.
The coefficient of friction can be calculated as
\(\begin{gathered} F\text{ = }\mu mg \\ \mu=\frac{F}{mg} \end{gathered}\)On substituting the values, the coefficient of friction will be
\(\begin{gathered} \mu=\frac{23}{7\times10} \\ =\text{ 0.33} \end{gathered}\)Thus, the coefficient of friction is 0.33
Final Answer: The coefficient of friction between the object and the surface is 0.33.
Choose the graph of y < –x^2 + 4x + 5.
Answers
Answer:
First graph
Explanation:
The inequality is
y < -x² + 4x + 5
The line that separates the regions is the graph of the parabola y = -x² + 4x + 5
So, this is a parabola that opens down because the coefficient of x² is -1 and it is negative.
Therefore, the possible options are the first and the third graph
Then, let's see if the point (x, y) = (0, 0) belongs to the region
y < -x² + 4x + 5
0 < -0² + 4(0) + 5
0 < 5
Since the inequality is satisfied, the point (0, 0) belongs to the region and the answer is the first graph.
a sphere of diameter 6.0
cm is moulded into a thin wire of diameter 0.2 mm calculate the length of the wire in metres
Answers
Answer:
V1 = 4/3 pi R^3 = pi D^3 / 6 D = 2 R volume of sphere
V2 = pi r^2 L = pi d^2 L / 4 volume of wire
V2 / V1 = 1 = 3/2 d^2 L / D^3 since volumes are equal
L = 2/3 D^3 / d^2 = 2/3 * 6^3 / .02^2 = 360,00 cm = 3600 m
A light bulb is connected to a 6V battery. When a student measures the voltage drop across the bulb, what should the voltmeter read? 3V, because it will be half the battery voltage 12V because it will be twice the battery voltage 0 V because there will be no battery voltage. 6V, because it will equal the battery voltage
Answers
Answer:
it will be 6v it won't change
Explanation:
how to answer thiss helppp
Answers
Answer:
Look at work
Explanation:
Your given the mass of planet M and radius as well as second mass.
Use universal gravitation law to find force of gravity
Fg= Gm1m2/r^2
Plug in givens
Fg= 553.6 N
Use newtons second law
Fg= ma
553.6N=5a
solve for a= 110.72m/s
Weight is 553.6N
Alex drives his car 80 Km/h due east for 150 minutes to get to his school. How far did he travel in kilometer?
Answers
Answer:
200km
Explanation:
Use the formula Distance = speed × time ( transpose the speed formula )
Also remember to converted the minutes into hour because the answer asked for it in Km do this by dividing by 60
What is the weight of an object a mass of 90.0kg?
Answers
Explanation:
it would be 198.4
you're welcoms
if we place a nonpolar molecule in an electric field, which is true?
Answers
The statement "If we place a non polar molecule in an electric field" is true because a non polar molecule will not experience a significant force or reorientation in an electric field because it lacks a permanent electric dipole moment.
Non polar molecules have a symmetrical distribution of charge, meaning the positive and negative charges are evenly distributed. In an electric field, the electric forces acting on individual atoms or charges within the molecule will cancel each other out due to the symmetry.
Since the net force on the molecule is zero, it will not accelerate or move in response to the electric field. Similarly, there will be no net torque on the molecule, meaning it will not rotate or align itself with the electric field.
In summary, non polar molecules do not interact strongly with electric fields due to their balanced charge distribution, resulting in no net force or torque being exerted on them.
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Suppose you flip 20 fair coins:
a) How many possible outcomes (microstates) are there?
b) What is the probability of getting the sequence: HTHHTTTHTHHHTHHHHTHT (in exactly that order)?
c) What is probability of getting 12 heads and 8 tails (in any order)?
Answers
There are 1,048,576 possible outcomes (microstates) when flipping 20 fair coins. The probability of getting the sequence "HTHHTTTHTHHHTHHHHTHT" in exactly that order is approximately 9.5367e-07.
a) There are 2 possible outcomes (heads or tails) for each coin flip, and since there are 20 coin flips, the total number of possible outcomes, or microstates, is given by 2²⁰
Answer: 2²⁰= 1,048,576 possible outcomes.
b) To calculate the probability of getting the sequence "HTHHTTTHTHHHTHHHHTHT" in exactly that order, we need to determine the probability of obtaining each individual outcome (head or tail) and multiply them together.
Since each coin flip is independent and has a 1/2 chance of resulting in either heads or tails (assuming the coins are fair), the probability of obtaining the desired sequence is (1/2)²⁰
Answer: (1/2)²⁰≈ 9.5367e-07
c) To calculate the probability of getting exactly 12 heads and 8 tails in any order, we need to determine the number of ways to arrange 12 heads and 8 tails within the 20 coin flips.
This can be calculated using the binomial coefficient, also known as "n choose k." The formula for the binomial coefficient is:
C(n, k) = n! / (k! * (n-k)!)
Where n is the total number of coin flips and k is the number of heads.
Using this formula, the probability can be calculated as follows:
P(12 heads and 8 tails) = C(20, 12) * (1/2)^20
Calculating C(20, 12):
C(20, 12) = 20! / (12! * (20-12)!)
= 20! / (12! * 8!)
= (20 * 19 * 18 * 17 * 16 * 15 * 14 * 13) / (8 * 7 * 6 * 5 * 4 * 3 * 2 * 1)
= 125,970
P(12 heads and 8 tails) = 125,970 * (1/2)^20
Answer: P(12 heads and 8 tails) ≈ 0.12013435364 (approximately)
a) There are 1,048,576 possible outcomes (microstates) when flipping 20 fair coins.
b) The probability of getting the sequence "HTHHTTTHTHHHTHHHHTHT" in exactly that order is approximately 9.5367e-07.
c) The probability of getting exactly 12 heads and 8 tails in any order is approximately 0.12013435364.
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Which is the correct definition for sea floor spreading
Answers
In result, the ocean floors move like conveyor belts, carrying the continents along with them
An electric dipole is released from rest in a uniform electric field with the orientation shown. Which entry in the table below correctly describes the net torque and the net force on the dipole?*Net torque: clockwise, net force: zero*Net torque: counterclockwise, net force: zero*net torque: counterclockwise net force: non zero*net torque: clockwise, net force: non zero*Both are zero
Answers
We will have the following:
From the graph and the direction of the focus of the electric field assuming it is a negative electric field will be:
*Net torque: Clockwise.
*Net force: Zero.
What is the difference between the chemical bonds formed in molecules of
N2 and the chemical bonds formed in crystals of Mgo?
A. MgO is a covalent substance, and N2 is an ionic substance.
B. Both N2 and MgO are covalent substances, but the bonding
electrons in MgO are shared more equally between atoms than
they are in N2
C. Both N2 and MgO are covalent substances, but the bonding
electrons in N2 are shared more equally between atoms than they
are in Mgo.
D. Mgo is an ionic substance, and N2 is a covalent substance.
Answers
Answer:
D
Explanation:
Mgo is ionic and N2 has covalent bonds
The linear expansivity of metal P is twice that of another metal Q. When these materials are heated through the same temperature change, their increase in length is the same. Calculate the ratio of the original length of P to Q
Answers
How many gram of coffee mut evaporate from 750 g of coffee in a 120 g gla cup to cool the coffee from 95. 0°C to 48. 0°C? You may aume the coffee ha the ame thermal propertie a water and that the average heat of vaporization i 2340 kJ/kg (560 cal/g). (You may neglect the change in ma of the coffee a it cool, which will give you an anwer that i lightly larger than correct. )
Answers
65 grams of coffee must evaporate.
Here, we use the formula of heat transfer
Heat loss by the system = heat gain by the system
We need to calculate the heat loss by the coffee and glass itself individually
Heat loss by glass
Heat loss by glass = mass of glass * specific heat capacity *change in temperature
= (120/1000 Kg)* (840)* (48 - 95)
= - 4737.6 J
Heat loss by the glass is -4737.6 J
Similarly we calculate heat loss by coffee
Heat loss by coffee = mass of coffee * specific heat capacity * change in temperature
= (750/1000 Kg) * ( 4184) *( 48 - 95)
= - 147486 J
Heat loss by coffee is - 147486 J
Total heat loss = Heat loss by coffee + Heat loss by glass
= -152223.6 J
evaporation of liquid = Amount of heat loss
Mass of evaporation * Latent heat = 152223.6 J
Mass of evaporation = 152223.6 / 2340*1000
Mass of evaporation = 0.06505 Kg = 65.05 gram
Hence, 65 grams of coffee evaporates.
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Calculate the momentum when a toy car of mass 140g moves at 5m/s
Answers
Answer:
P = 0.7 [kg*m/s]
Explanation:
The amount of linear momentum is defined as the product of mass by Velocity. This way you have the following equation:
P = m*v
P = momentum [kg*m/s]
m = mass = 140 [g] = 0.140 [kg]
v = velocity = 5 [m/s]
P = 0.140*5
P = 0.7 [kg*m/s]
please ans both urgent
Answers
Answer:
d I guess not sure
b if down I guess
Explanation:
if worng then plz dont say anything as I am not sure about the ans