An object is being dragged across a flat level surface using a rope that is applying a constant 43.9 lb force to the side of the object at an angle that is 27.0 degrees above the horizontal. If this force is used to drag the object through a displacement of 26.8 ft, then how much work was done by this force in ftlb?

Answer:

i feel like it is 9,000

Explanation:

all i did was multiplied T-T

Answer:

162000

hope thats the correct answer

Answer:

1.matter made of mass and volume

2.matter is any substance that has mass and takes up a space by having a volume

3.table, coffee, and perfume

4.solid has a strong bonds, liquid has weak bond, and gas no bond

5

Coulomb's law and Newton's law of universal gravitation are both fundamental laws of physics that describe the interactions between objects.

What iS Coulomb's Law?

Coulomb's law is a fundamental law of electrostatics that describes the interaction between electric charges. It states that the electrostatic force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

The mathematical form of Coulomb's law is:

F = kq₁q₂ / r²

Although they are similar in form, there are some key differences between these laws:

Nature of the Force: The most obvious difference is that Coulomb's law describes the electrostatic force between electric charges, while Newton's law of universal gravitation describes the gravitational force between objects with mass.

Magnitude of the Force: The electrostatic force between two charged particles is generally much stronger than the gravitational force between two massive objects. This is because the electric charge has a stronger fundamental force than mass.

Type of Interaction: Electric charges can be either positive or negative, and like charges repel while opposite charges attract. In contrast, all masses attract each other through gravity, with no repulsion.

Inverse-Square Relationship: Both laws have an inverse-square relationship, which means that the force decreases with the square of the distance between the objects. However, the constant of proportionality is different for the two laws, reflecting the differences in the nature of the force.

Gravitational Mass vs Electric Charge: Gravitational mass and electric charge are two different properties of matter. Gravitational mass determines the strength of an object's gravitational attraction to other objects, while electric charge determines the strength of the object's interaction with other charged objects.

Overall, while the forms of Coulomb's law and Newton's law of universal gravitation are similar, the differences between the two laws reflect the fundamentally different nature of the forces and properties they describe.

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Answer: rafting

Explanation:

this sport is called rafting because they go down a river with fast paced water and a blow up boat because they do it for a thrill like a water ride.

Given parameters:

Mass of object = 6.7kg

Velocity  = 8m/s

Unknown parameter:

Kinetic energy  = ?

Energy is defined as the ability to do work. There are two forms of energy;

Kinetic and potential energy.

Kinetic energy is the energy due to the motion of a body. Whereas, potential energy is the energy due to the position of a body usually at rest.

Kinetic energy is mathematically expressed as;

             Kinetic energy  = \(\frac{1}{2} m v^{2}\)

where m is the mass of the body

           v is the velocity of the body

Since we have been given both mass and velocity, input the parameter to solve for the unknown;

            Kinetic energy  = \(\frac{1}{2}\) x 6.7 x 8²   = 214.4‬J

So the kinetic energy of the body is  214.4‬J

Answer:

b

Explanation:

An insulator does not transfer thermal or electrical energy but a conductor does

Answer:

The formula is correct.

Explanation:

The given expression is :

\(v^2=2gh\)

Where

v is the velocity

g is acceletion due to gravity

h is height

Taking LHS,

The dimensional formula for [v] = [LT⁻¹]

[v²] = [L²T⁻²]

Taking RHS,

The dimensional formula for [g] = [LT⁻²]

The dimensional formula for [h] =[L]

2gh = [LT⁻²][L]

= [L²T⁻²]

So, LHS =  RHS

So, the given formula is correct dimensionally.

Answer:

See explanation

Explanation:

A change in momentum occurs when a force is applied to an object and changes its velocity.

In a simple electrical circuit, if it contains a battery, a light bulb, and a properly connected ammeter, the ammeter has a very low internal resistance because it is connected in series with the circuit.

An electrical circuit is made up of a combination of resistors, voltage sources, and current sources that are interconnected in a closed loop. It is used to generate an electric current in a complete circuit and can be as straightforward as a battery connected to a bulb or as complicated as a full-scale electronic circuit.

Ammeters are measuring devices that are used to measure current in a circuit. The ammeter should be connected in series with the circuit to allow current to flow through it. An ammeter with a very low internal resistance should be used since any extra resistance in the ammeter can change the current being measured.

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we can use the law of conservation of momentum, which states that the total momentum of a system remains constant if there are no external forces acting on it.

Let's denote the mass of each car as m, and let the initial velocity of each car be v. The total initial momentum of the system is then:

p_initial = mv + m(-v) = 0

This is because the two cars are traveling in opposite directions at equal speeds.

After the collision, the two cars stick together, so they move as one object with a mass of 2m. Let's denote the final velocity of this object as v_f. The final momentum of the system is then:

p_final = (2m)*v_f

By the law of conservation of momentum, we know that p_initial = p_final. Therefore:

0 = (2m)*v_f

Solving for v_f, we get:

v_f = 0

This means that the final velocity of the two cars after the collision is zero. In other words, they come to a complete stop. This result makes sense intuitively, as the two cars have equal masses and speeds in opposite directions, so their momenta cancel out completely when they collide and stick together.

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The angular velocity of the track star is approximately 0.105 radians/second.

The time taken to run the race is 60 seconds, and the distance covered by the track star is one lap, which is the circumference of the circle. Therefore, the average speed of the track star is:

Average speed = distance / time

Average speed = 2πr / 60 seconds

Average speed = (2π x 63.66 meters) / 60 seconds

Average speed = 6.67 meters/second (rounded to two decimal places)

The angular velocity (ω) of the track star can be calculated using the formula: ω = v / r

where v is the linear velocity of the track star, and r is the radius of the circular track. Since the track star is running at a constant speed, the linear velocity is equal to the average speed calculated above. Therefore, the angular velocity of the track star is:

ω = v / r

ω = 6.67 meters/second / 63.66 meters

ω = 0.105 radians/second (rounded to three decimal places)

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Answer:

Bacteria

Explanation:

UV kills bacteria and its 8 letters

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:

0.4A.

Explanation:

Current (A) = Charge (coulomb)/Time (secs)

2 coulombs/5 secs = 0.4A

The stopper travels approximately 4.5 meters horizontally before hitting the ground.

We can use conservation of energy to solve this problem. At the highest point of the stopper's motion, all of its energy is in the form of potential energy, and at the lowest point (when it hits the ground), all of its energy is in the form of kinetic energy.

The potential energy of the stopper at the highest point is:

Ep = mgh

where m is the mass of the stopper, g is the acceleration due to gravity, and h is the height above the ground. Plugging in the values given in the problem, we get:

Ep = (0.150 kg) * (9.81 m/s²) * (2.3 m) ≈ 3.2 J

At the lowest point, all of the potential energy has been converted to kinetic energy:

Ek = (1/2) * mv²

where v is the speed of the stopper just before it hits the ground. Since the stopper is released from rest, we can use conservation of energy to equate the potential energy at the highest point to the kinetic energy just before hitting the ground:

Ep = Ek

mgh = (1/2) * mv²

Solving for v, we get:

v = √(2gh)

where h is the height from which the stopper was released. Plugging in the values given in the problem, we get:

v = √(2 * 9.81 m/s² * 2.3 m) ≈ 6.6 m/s

Now we can use the time it takes for the stopper to fall to the ground to calculate the horizontal distance it travels. The time is given by:

t = √(2h/g)

Plugging in the values given in the problem, we get:

t = √(2 * 2.3 m / 9.81 m/s²) ≈ 0.68 s

During this time, the stopper travels a horizontal distance given by:

d = vt

Plugging in the values we just calculated, we get:

d = (6.6 m/s) * (0.68 s) ≈ 4.5 m

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Phyla in increaing order of evolution is Platyhelminthes, Annelidia, Arthopoda and Echinidermata.

What is meant by Annelidia?

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if u throw a ball straight up its speed decreases .

the shape of the ball would be curved

velocity : top is zero

Both F's are forces, so µ must be unitless/dimensionless.

F[friction] = µ F[normal]

Or, more explicitly in terms of the units:

(Newtons) = (constant) (Newtons)

Answer:

3000 Kg.m/s

Explanation:

From the question given above, the following data were obtained:

Mass (m) of shark = 200 Kg.

Velocity (v) of shark = 15 m/s.

Momentum of shark =..?

The momentum of an object is simply defined as the product of the mass and velocity of the object. Mathematically, it is expressed as:

Momentum = mass (m) × velocity (v)

With the above formula, we can obtain the momentum of the shark as follow:

Mass (m) of shark = 200 Kg.

Velocity (v) of shark = 15 m/s.

Momentum of shark =..?

Momentum = mass (m) × velocity (v)

Momentum of shark = 200 × 15

Momentum of shark = 3000 Kg.m/s

Therefore, the momentum of the shark is 3000 Kg.m/s.

When a boxer is moving away from a punch, the force experienced is reduced because the time of impact is increased.

The force of a punch is a product of mass and acceleration. The mass of the boxer and the fist of the opponent are constant, so the acceleration of the punch is also constant. However, if the boxer moves away from the punch, the distance that the fist has to travel to make contact with the boxer's body increases. As a result, the time of impact is longer, and the force is spread out over a longer period. This means that the force of the punch is reduced and is less likely to cause injury or knock the boxer down.

In addition, moving away from a punch can also reduce the accuracy of the punch, as the opponent's punch may miss its intended target due to the change in distance between the two boxers.

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Answer:c large, spherical body that orbits in a clear path around a star

Explanation:]

All planets in the universe are the large, spherical body that orbits in a clear path around a star. Therefore, option (C) is correct.

Planets can be described as astronomical bodies which are orbiting a star and are big enough to have their own gravity.

In the solar system, a planet is a body that revolves around the sun in fixed orbits and does not have the light of its own but reflects the light of the sun. They do not twinkle like other stars which are too close to us.

Our solar system consists of 8 planets which are in the order of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

With approximately two trillion galaxies within our observable Universe,  and are approximately 10²⁵ planets that orbit stars, with some approximately 10²⁶ to 10³⁰ additional starless planets.

Therefore, option (c) is correct according to which planets are the large, spherical body that orbits in a clear path around a star.

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The distance it slides before coming to rest is 1.2 m.

Mass of the object, m = 24 kg

Initial velocity of the object, v = 10.5 km/h = 2.92 m/s

Coefficient of kinetic friction, μ = 0.38

Frictional force acting on the object,

F = μmg

F = 0.38 x 24 x 9.8

F = 89.4 N

According to work-energy theorem, the work done is equal to the change in kinetic energy.

W = 1/2 mv² - 0

F.d = 1/2 mv²

Therefore, the distance it slides before coming to rest,

d = 1/2 mv²/F

d = 1/2 x 24 x (2.92)²/89.4

d = 1.2 m

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Answer:

B. contains substance s that are not mixed in a specific ratio

Explanation:

the proportion of constituents in a mixture can vary

Answer:

450 kg

Explanation:

In the picture above. Goodluck

Answer:

The correct answer is D :)

Explanation:

Got it right edge 2021

Answer:

The graph is trying to show a comparison of statistics. In order to fully understand this graph, we need a label for the different colors and sections in the graph and a title for the graph. Without this information, we cannot fully understand what this graph is trying to portray.

Explanation:

hope this helps!

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question is we have

force = 75 × 12

We have the final answer as

Hope this helps you

Increasing the mass of the objects involved will cause the gravitational force between them to increase.

The gravitational force between two objects can be increased by changing either the mass or distance of the objects.

So, the change that will cause the gravitational force between a baseball and a soccer ball to increase is to increase the mass of either or both objects.

The gravitational force between two objects is directly proportional to the mass of each object.

That is, if the mass of one object is doubled, the gravitational force between it and another object is doubled as well.

The gravitational force between two objects is also inversely proportional to the square of the distance between them.

This means that as the distance between two objects is doubled, the gravitational force between them is reduced to a quarter of its original value.

Therefore, increasing the mass of the objects involved will cause the gravitational force between them to increase.

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Education of the physical is an academic discipline, whereas education through the physical is an instructional technique. Furthermore, the former is concerned with the study of physical education and exercise science, whereas the latter is concerned with the use of physical activity to enhance cognitive, emotional, and social growth.

Education of the physical is an academic discipline, whereas education through the physical is an instructional technique. Furthermore, the former is concerned with the study of physical education, sports science, and exercise science, whereas the latter is concerned with the use of physical activity to enhance cognitive, emotional, and social growth. In this regard, the following are four differences between education of the physical and education through the physical: Education of the physical is focused on improving knowledge, skills, and understanding of the human body, whereas education through the physical is aimed at enhancing cognitive, emotional, and social growth through physical activity.

Physical education is mainly concerned with the acquisition of motor skills and abilities, whereas education through the physical is concerned with the acquisition of life skills such as leadership, teamwork, and cooperation. Physical education is a specialized subject taught in schools and universities, whereas education through the physical is an instructional technique that can be used across the curriculum. Physical education is primarily concerned with physical fitness and health, whereas education through the physical is focused on the holistic development of individuals.

In conclusion, physical education and education through the physical are two distinct but complementary approaches to learning that are focused on physical activity. Physical education is an academic discipline that is concerned with the study of physical education, sports science, and exercise science. On the other hand, education through the physical is an instructional technique that is used to enhance cognitive, emotional, and social growth through physical activity.

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This is because the Milky Way Galaxy is incredibly large and contains an estimated 200-400 billion stars, which is too many to be seen from Earth with the current technology.

Furthermore, the Milky Way is also estimated to be 100,000 light years across, meaning that even if we could see all the stars at once, the distant stars would be too faint to be seen from Earth.

To put it into perspective, if we could see all the stars, it would look like a giant, fuzzy patch of light in the night sky.

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