what do you mean by upper fixed point?​

Electrostatic force is related to the magnitude of charge on the two objects is  F = kq1 q2 r2, The electrostatic force between two charged items is inversely connected to the charge's.

There is an electrostatic force that can either attract or repel two charged particles. It can also be referred to as Coulomb's interaction or Coulomb's force. For instance, the atom's protons and electrons are held together by the electrostatic force that they exert on one another. Size is unquestionably an important problem in science. In most cases, magnitude describes a size or a distance. By comparing the object's size and rate of motion, we may establish a relationship between magnitude and movement.

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Answer:

4 N

Explanation:

mass = 2 kg

acceleration = 2 m/s^2

Force = mass * acceleration

         = 2 *2

         = 4 N

The work done by the child while pulling the 12 kg wagon a distance of 1.2 m with a 22 N force, in the absence of friction, is 26 J (joules).

The work done is calculated using the formula:

Work = Force × Distance × cos(θ)

Where:

Force is the applied force (22 N)

Distance is the displacement (1.2 m)

θ is the angle between the force and the direction of displacement (assuming it is 0 degrees, as there is no information provided regarding the angle)

Plugging the given values into the formula:

Work = 22 N × 1.2 m × cos(0) = 26 J

Therefore, the child would do 26 joules of work while pulling the wagon.

In conclusion, the correct answer is d) 26 J. The child would do 26 joules of work when pulling the 12 kg wagon a distance of 1.2 m with a 22 N force in the absence of friction. The calculation is based on the work formula, taking into account the given values.

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The man will climb up the ladder 2.3 meters before he loses friction and slips.

What is friction?

Friction is the force that opposes motion between two objects that are in contact. Friction is a result of the roughness or irregularity of the surfaces of the two objects in contact, and it acts in the direction opposite to the direction of motion or attempted motion.

We can use the following equation to find the maximum force of friction that acts on the man:

f_friction = u * f_norm

where f_norm is the normal force acting on the man, which is equal to his weight (mass * acceleration due to gravity):

f_norm = m_man * g

where m_man is the mass of the man and g is the acceleration due to gravity.

Now we can calculate the maximum force of friction:

f_friction = u * f_norm = u * m_man * g = 0.55 * 70 * 9.8 = 376.1 N

Next, we can find the force of friction that acts on the ladder:

f_ladder_friction = f_friction

The force that acts on the man and the ladder due to gravity can be expressed as:

f_gravity = (m_man + m_ladder) * g

where m_ladder is the mass of the ladder.

The net force that acts on the ladder can be expressed as:

f_net = f_gravity - f_ladder_friction

The ladder will slip when the net force is no longer enough to keep it in place. At this point, the force of friction on the ladder is equal to the maximum force of friction:

f_ladder_friction = f_friction

f_net = f_gravity - f_ladder_friction = 0

We can substitute the known values into this equation to find the height the man climbs up the ladder before it slips:

0 = (m_man + m_ladder) * g - f_friction

0 = (70 + 10) * 9.8 - 376.1

0 = 780 - 376.1

403.9 = 780 - 376.1

h = 403.9 / (m_man + m_ladder) * g = 403.9 / (70 + 10) * 9.8 = 2.3 meters

So the man will climb up the ladder 2.3 meters before he loses friction and slips.

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Total angular velocity is 13.7 rad/s.

Given that an object is moving in a circular motion, we can infer that the system involving the athlete, the ball, and the rope is also moving in a round fashion.

We are informed that the athlete is 181 cm tall, has a 90 cm arm span, and will be using a 121 cm long ball and chain for the competition. With both arms hanging on to the ball and chain handle as the athlete starts to spin, their body becomes the centre of the action. The ball and chain's initial linear velocity is 29 m/s when it is released.

The radius of the path= 90 cm + 121 cm

                                    = 211cm or 2.11 m

Using;
linear velocity = radius * angular velocity

V = rω

ω = V/r

ω =  29m/s/2.11 m

ω = 13.7 rad/s

angular velocity of athlete is 13.7 rad/s

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Therefore, the length of the wave is 8 meters when coming into the shores.

To determine the length of waves will will use the formula.

v =√/ T

Where

v is wave speed

√ is wavelength

T is wave period

v = 2.

t is 4

√ = v *t

Substitute the given values.

√  = 2.0 * 4 seconds

√ = 8 meters.

Therefore, the length of the wave is 8 meters when coming into the shores.

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Answer:

first blank is chemical second blank is kinetic energy

In the event of an accident or a car crash, road safety barriers and fences prevent automobiles from running off the road.

Newton's Three Laws of Physics can help explain what these safety barriers are and how they help to save lives during car accidents :

I.  Unless acted upon by an imbalanced force, an object at rest will remain at rest, and an object at constant velocity will remain at constant velocity.

II.  If an imbalanced force occurs, a mass will experience acceleration proportional to its magnitude.

III.  When you apply a force to an object, you will feel a force that is equal    in magnitude but opposite in direction.

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Answer:

exothermic

Explanation:

Answer:

Paleontology is the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.

Answer:

Particle A: K.E = 38.3 J

Particle B: K.E = 7.67 J

Explanation:

Given that Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes them apart, and they then fly off in opposite directions, free of the spring. The mass of A is 5.00 times the mass of B, and the energy stored in the spring was 46 J. Assume that the spring has negligible mass and that all its stored energy is transferred to the particles. Once that transfer is complete, what are the kinetic energies of each particle?

The total kinetic energy of Particle A and particle B should be equal to 46 J

Since the mass of A is 5.00 times the mass of B, then, the K.E energy of each particle can be calculated by using ratio.

5 + 1 = 6

K.E for particle A

5 /6 × 46 = 230 / 6 = 38.3 J

K.E for particle B

1/6 × 46 = 46 / 6 = 7.67 J

Answer:

la velocidad se mide con el tiempo del tiempo que tarda el tiempo se mide por la hora del día y el reloj

Explanation:

Creo que es correcto

Answer:

The force on the wire increases

Explanation:

Since the force on the wire F = BILsinФ where B = magnetic field strength, I = current in wire, L= length of wire and Ф = angle between the magnetic field and the wire.

Given that the magnetic field and the wire are perpendicular, Ф = 90°

So, F = BILsin90° = BIL

Since B and L are constant, F ∝ I

So, if the current in the wire increases, the force on the wire also increases.

The area is reduced by 1/3, the resistance will increase by a factor of 3. Therefore, the new resistance is 3R * 3 = 9R.

The resistance of a conductor is given by the formula R = ρ (L/A), where ρ is the resistivity, L is the length, and A is the cross-sectional area. Since the volume remains the same, the product of length and area should remain constant. When the length is tripled, the cross-sectional area must be reduced by a factor of 1/3 to maintain the volume. The resistance is inversely proportional to the cross-sectional area, so if the area is reduced by 1/3, the resistance will increase by a factor of 3. Therefore, the new resistance is 3R * 3 = 9R.

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In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Answer:

Explanation:

An Ideal Machine is a machine which gives 100 percent efficieny that is entire input energy is converted into output energy.

however this is not possible as some energy is lost due to friction, imperfect components and all. Therefore no machine is Ideal machine.

Answer:

First, an atom may complete its octet by sharing more than one pair of electrons with a bonded neighbour. Two shared pairs of electrons, represented by a double dash (=), form a double bond. Double bonds are found in numerous compounds.

Carbon dioxide is another example of a compound containing a multiple bond. Carbon can react with oxygen to form carbon dioxide. Carbon has four valence electrons, and oxygen has six. Carbon can share two of its valence electrons with each of the two oxygen atoms, forming two double bonds.

Explanation:

A bored kid willing to help,

Hope you're having a splendiferous day...

The scenario provided is an excellent model for fission, as it demonstrates the chain reaction that occurs when a neutron collides with a uranium nucleus and splits it into two smaller nuclei, releasing a large amount of energy in the process.

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Answer:

Explanation:

To find how long it took we use the formula

\(t = \frac{d}{v} \\ \)

d is the distance

v is the velocity

From the question we have

\(t = \frac{30}{15} \\ \)

We have the final answer as

Hope this helps you

The correct answer is B. According to Newton's law of universal gravitation, the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

In simpler terms, as objects get closer together, the gravitational force between them increases.

When the distance between two objects decreases, the denominator of the equation (distance squared) becomes smaller, resulting in a larger force. Conversely, when the distance increases, the denominator becomes larger, resulting in a smaller force.

It is important to note that the mass of an object does not directly affect the strength of the gravitational force between two objects. However, a higher mass will lead to a greater gravitational force when compared to a lower mass, but only because the force is being exerted on a more massive object. The mass of an individual object doesn't directly affect the gravitational force it experiences from another object. option B

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Answer:

energy

Explanation:

work is the involves energy transfer when an object is moved over a distance

Answer:

Energy

Explanation: When a force causes a body to move, work is done on the object by the force. Work is the measure of the energy transfer when a force ‘F’ moves an object through a distance ‘d’. So we say that energy is transferred from one energy store to another when work is done, and therefore, energy transferred = work done.

The side AO ≅  side BO because all radii of the same circle are congruent and equal. We also know that AC ≅ BC since tangents to a circle intersecting at a point are congruent. Using the reflexive property, we see that side CO is congruent to side CO. The  △ACO and △BCO are congruent by the SSS congruency theorem.

Point O is the center of the circle, and AO and BO are both radii of the circle. Thus, it means that AO ≅ BO because; All radii of the same circle are congruent and equal.

Since AO and BO are equal, it means that since point C is the intersection point of tangents from points A and B, then we can say that;

AC ≅ BC because; tangents to a circle that intersects are congruent.

Reflexive property shows that the length of a side is congruent to itself. In △ACO and △BCO, we see that they share a common side which is CO. Thus, CO is congruent to side CO.

From the above conclusions we have;

AO ≅ BO

AC ≅ BC

CO ≅ CO

This means all three corresponding sides of both △ACO and △BCO are congruent. Thus, we can conclude that;

△ACO is congruent to △BCO by the SSS Congruency theorem.

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The image of the question is given in the attachment.

The correct question is given below-

∠AOB is a central angle and ∠ACB is a circumscribed angle given to you to prove that △ACO ≅ △BCO.Fill in the blanks.

We are given that angle AOB is a central angle of circle O and that angle ACB is a circumscribed angle of circle O. We see that AO ≅ BO because ____

We also know that AC ≅ BC since ___

Using the reflexive property, we see that ____

Therefore, we conclude that △ACO is congruent to △BCO by the _____

According to the question of magnetic field, the angular speed of the coil if the maximum emf produced is 3.00×10 is approximately 196.55 rad/s.

The angular speed of the coil can be calculated using the equation: ω = (EMF) / (N × B) where ω is the angular speed in radians per second, EMF is the electromotive force (maximum emf produced), N is the number of turns in the coil, and B is the magnetic field strength.

Substituting the given values, we have: ω = (3.00×10² V) / (190 turns × 8.70×10⁻² T)

Calculating this expression, we find: ω ≈ 196.55 rad/s

Therefore, the angular speed of the coil is approximately 196.55 rad/s.

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Answer:

a

Explanation:

f=ma

200=2*m

divide both sides by 2

m=100

The answer to your question is A) telluric currents. Telluric currents are naturally-occurring electric currents that flow within the Earth's crust and upper mantle.

These currents are caused by the interaction between the Earth's magnetic field and the ionosphere, which is the layer of the Earth's atmosphere that is ionized by the sun's radiation. Sun spot activity can cause disturbances in the Earth's magnetic field, which can in turn affect the strength and direction of telluric currents.It is important to note that while telluric currents are caused by the interaction between the Earth's magnetic field and the sun's radiation, they are not the same thing as magnetic fields or magnetic currents. Magnetic fields are a fundamental force in nature that are generated by the motion of charged particles, while magnetic currents refer to the flow of electric charge within a magnetic field.Overall, the study of telluric currents is an important field of research that has many practical applications, such as in the exploration for mineral resources and the detection of underground structures. By understanding the complex interplay between the Earth's magnetic field and the sun's radiation, scientists can gain valuable insights into the inner workings of our planet and the forces that shape it.

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Answer:

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

________b_____ 7 km east

|

| 2km north.

|a

|

°

pythagorean theorem : ✓a² + b² = c²

c² = a² + b² = 4 + 49 = 53

c = ✓53 km

displacement = c = ✓53 km

distance = 10 + 3 + 2 = 15 km

The distance from the axis of the force applied is 2.05 m.

The distance from the axis of the force applied is calculated as follows;

The formula for torque;

τ = Fr

where;

Another formula for torque is given as;

τ = Iα

where;

τ = (mr²)α

τ = (25 kg x (0.925 m)²) x (1.84 rad/s²)

τ = 39.36 Nm

The distance is calculated as;

r = τ/F

r = ( 39.36 Nm ) / (19.2 N)

r = 2.05 m

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