Please I need help fast <3

the distance moved by the object remains the same, so the work done is equal to twice the initial amount of work done. In other words, the work done is directly proportional to the force applied but inversely proportional to the distance moved.

When a force is doubled, and the distance moved remains the same, the work done is also doubled. The relationship between force, distance, and work is given by the equation: Work = Force x Distance Where: Work is the energy transferred when a force moves an object through a distance. Force is the push or pull applied to an object to cause it to move. Distance is the amount of space an object moves in the direction of the force. When a force is doubled, the amount of energy transferred to the object is doubled. However, the distance moved by the object remains the same, so the work done is equal to twice the initial amount of work done. In other words, the work done is directly proportional to the force applied but inversely proportional to the distance moved.

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Answer:

360J

Explanation:

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. The same amount of work is done by the body when decelerating from its current speed to a state of rest.

Answer:

(TRUE) Mars seems to pass the fastest, Jupiter next, and Saturn the slowest. But all exhibit that puzzling quirk--near the point of their celestial course precisely opposite the Sun ("opposition"), their action amongst the stars briefly turns around.

Explanation:

Mars: 24.077 km/s (53,853 miles per

hour), or a period of about 686.93 days.

Answer:is true

Explanation:

Answer:

so basicly i cant do it for u because my computer is not leting me but you just got to search up answer or ask your teacher for help or like i do i say that i ternd it in and the teacher will say no you didint say that u did and she will say can u send it to me say no bc i deleted

Explanation:

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Answer:

magnet, gravity

Explanation:

Answer:

i think about 218 cm3

Explanation:

water expands by about 9% when it freezes so 200* 1.09=218

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Not sure if I'm correct though

Answer:

Explanation:

A) The diagram
---> 5N
---> 6N
---> 7N

B) The force needed to replace them would be their summation so
5+7+6 = 18N

C)
---> 5N
<--- 6N
---> 7N
Now for replacing it 6N would oppose Hence negative sign
5-6+7 = 6N

The correct answer is option (A). The fact that a thermometer "takes its own temperature" illustrates the concept of thermal equilibrium.

Thermal equilibrium refers to a state where two objects or systems are at the same temperature and there is no net transfer of heat between them. In this case, the thermometer, being in thermal contact with its surroundings, eventually reaches a state of equilibrium where it shares the same temperature as its environment. Once thermal equilibrium is reached, the thermometer accurately reflects the temperature of its surroundings, effectively "taking its own temperature."

The concept of thermal equilibrium highlights the idea that heat transfer occurs until a balanced state is achieved. It is a manifestation of energy conservation because, in the process, energy is conserved. Heat refers to the transfer of thermal energy between objects, while internal energy represents the total energy stored within a substance, including both its kinetic and potential energies.

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(a).the hydrostatic pressure on the bottom of the aquarium is 312.5 lb/ft²

(b) the hydrostatic force on the bottom is 4681.5 lb

(c) the hydrostatic force on one end of the aquarium is 2343.75 lb.

Calculation :

Given ,   long = 5 ft

              wide = 3 ft

             deep  = 5 ft

a).  hydrostatic pressure

         p= 5.(depth)

            = 62.5 x 5

            = 312.5    lb/ft²

b). hydrostatic force

                F = pressure x area

                   = (312.5) x 15

                  = 4681.5  lb

c). Let a strip of Δx at the distance x.

                   width of strip = 3 ft

                   area of strip =   3Δx

                   pressure of strip = 62.5(5 - x)

       force = 62.5 (5 - x) (3Δx)

   the total force,

                    F =  \(\int\limits^0_5 {62.5*3*(5 - x)} \, dx\)

                      = 187.3[  5x - x²/2  ]⁵₀

                      = 187.3[  5x - 25/2  ]⁵₀

                      = 187.3 x (25/2)

                      = 2343.75 lb

Hydrostatic pressure is a branch of fluid mechanics that studies the equilibrium state of floating and submerged bodies. It involves the study of conditions in which the fluid is at rest in stable equilibrium, in contrast to fluid mechanics, which is the study of fluids in motion.

Hydrostatic pressure is a subcategory of hydrostatics and is the study of all fluids, both compressible and incompressible at rest.

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Answer:

A. The size of the ice patches

Explanation:

In an experiment, the control variable also known as the CONSTANT is the variable that must be kept uniform or the same for all groups throughout the experiment in order not to influence the outcome of the experiment.

According to the experiment described in this question, the effect of different salts on melting points is investigated by a student. Sodium chloride (NaCl), Calcium Chloride (CaCl2), Potassium Carbonate (KCO3) and inert sand are the four types of salt used. The volume of the ice used and melted was finally measured. This means that the SIZE OF THE ICE PATCHES USED is the control variable of the experiment as the same size was used for all groups throughout.

Answer:

the size of the ice patches

Explanation:

Answer:

A. Commutator

Explanation:

Commutator is part of a motor causes its electromagnet to turn in the same direction consistently, transforming electrical energy into mechanical energy.

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.

A commutator is a rotary electrical switch in certain types of electric motors and electrical generators.

Commutator is part of a motor causes its electromagnet to turn in the same direction consistently, transforming electrical energy into mechanical energy.

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The electron cloud is a model used to describe the behavior of electrons in an atom. Electrons move around the nucleus in a wave-like motion with a certain amount of energy and the outermost electrons are called valence electrons.

The electron cloud is an abstract concept used to describe the behavior of electrons in an atom. It is the region of space where the probability of finding an electron is highest. Electrons move around the nucleus in a cloud-like shape and occupy the space around the nucleus, rather than being confined to a specific orbit.

Electrons move around the nucleus in a wave-like motion with a certain amount of energy. This energy is related to the orbit of the electron, as electrons in higher energy levels are further away from the nucleus than those in lower energy levels. Electrons can move from one energy level to another by emitting or absorbing energy in the form of a photon.

These electrons determine how an atom interacts with other atoms and are responsible for chemical bonding. Valence electrons are the most easily removed from the atom and are important in determining the reactivity of an element.

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For an object that is only 150 years old, there would still be a significant amount of carbon-14 present in the sample, which would make it difficult to accurately determine the age of the object. The age of the sample is 23,108 years.

We know that;

0.693/t1/2 = 2.303/t log (No/N)

0.693/5700 = 2.303/t log (80/5)

0.693/5700 = 2.773/t

1.2 * 10^-4 = 2.773/t

t = 2.773/1.2 * 10^-4

t = 23,108 years

Carbon-14 dating is a radiometric dating method used to determine the age of organic materials up to approximately 50,000 years old. Carbon-14 (14C) is a radioactive isotope of carbon that decays over time, and the amount of 14C remaining in a sample can be used to determine its age.

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Answer:

0.8s

Explanation:

Given parameters:

Height of shelf  = 3m

Unknown:

Time it will take to hit the ground  = ?

Solution:

To solve this problem, we use the expression below;

         x  = ut + \(\frac{1}{2}\) gt²  

x is the height

u is the initial velocity  = 0m/s

g is the acceleration due to gravity  = 9.8m/s²

t is the time taken  = ?

Now insert the parameters and solve for t;

    3  = (0 x t) +( \(\frac{1}{2}\) x 9.8 x t²)

    3 = 4.9t²

       t² = 0.6

       t = 0.8s

I hope that the attachment helps you..

Answer:

A. Be behind the package

The absorption of the waves allows to find examples for heating are:

Waves of all types carry energy, but not matter. Therefore when interacting with a material you can miss its energy.

They indicate that in this interaction the absorbed energy was transformed into thermal energy.

Case 1.

A wave of light falls on a glass of water in the sun after a while the temperature of the glass increases due to the absorption of light, this phenomenon increases if the glass is black.

Case 2.

A sound wave hits a wall if the frequency is close to resonance, the wave is absorbed and the wall can vibrate until it falls and incease your temperature.

When air is blown into a musical instrument, part of the wave energy is absorbed into the walls, which after a while heat up, this results in a change in the frequency of the sound emitted by the instruments.

In conclusion using the features absorption of waves we can find examples of heating are:

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Answer:

Writing of a story that ends with the character becoming poor with no friends.

Explanation:

There was a young girl who believed that all things revolve around her. She had the money, the power, the family, and the beauty to ensure she was the center of attention. She would always be the main focus, everywhere she goes.

But there came a time when she had a major misfortune. Her family had come upon unfortunate times. They are going to lose their money and may even be jailed for embezzlement. It was true that she had no idea what her parents had done but she was also so familiar with the 'princess' lifestyle that she did not know how to downgrade her lifestyle. And so, when this misfortune happened, she was unsure how to react. She also assumed that her friends will be there for her. Little did she know everyone was just after her wealth and influence and had nothing to do with genuine friendship.

In a few months, their family position moved from top to bottom, which everyone found hard to accept. She had to maintain her status while at the same time try to live up with that without losing her circle. But as rumors spread fast and she wasn't able to spend the way she would normally send, she eventually experienced a dwindled friend circle. And in about a year, she had lost all of her friends, couldn't even convince someone to stay with her faithfully and worse of all, she was also poor, the very status she had degradingly taunted other people with.

Answer:

Explanation:

Sounds travel faster in object having high density proportion or matter. This is because particles vibrates and causing the other particle near to as well vibrate. Hence, when sound is moving from a higher dense medium like Water, the rate of traveling is high compare to it moving in air with less dense.

The three types of collisions are partially inelastic, complete inelastic and completely elastic collision.

The three types of collisions are partially inelastic, complete inelastic and completely elastic collision. Complete inelastic collision includes objects which will stick together afterward. Partially inelastic collision involves objects which cut apart after their collision, but deformations appear in some ways by the point of interaction. Elastic collision consists of objects which depart after the collision. These are the three types of  collisions. An elastic collision happens when two objects collide and bounce back to its initial place. So, the collision of two cars is not elastic rather, inelastic.

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Answer ideal mechanical advantage

Answer:

30 m/s East

Explanation:

Velocity must have a speed unit (m/s) and a direction.  The only one that satisfies the conditions is 30 m/s East.

\(\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}\)

\(\\ \sf\longmapsto Acceleration=\dfrac{10-15}{0.08}\)

\(\\ \sf\longmapsto Acceleration=\dfrac{-5}{0.08}\)

\(\\ \sf\longmapsto Acceleration=-62.5m/s^2\)

Answer:

When one object exerts a force on another object, the second object exerts the same size force on the first object

Explanation:

Answer:

213K = 100. 56

189K = 87. 22

113K = 45

201K = 93. 88

Explanation:

The formula for F to C = ( 1. 8*C) + 32

So, C = (F - 32) ÷ C

Answer: 11

Explanation:

There are two types of quantities in physical science. both the scalar and vector quantities. While the vector quantity has both the magnitude and direction, the scalar quantity just has the magnitude. The displacement is equal to zero.

Thus, The distance between an object's beginning point and ending position is known as displacement.

The formula D = s x t

This can be used to determine how far an object has travelled. D stands for distance, s for speed, and t for time.

It is important to correctly convert the specified dimensions in order to remove the units from the fraction's denominator and numerator

   D = (12.5 km) = (100 km/h)(7.5 min)(1 h/60 min)

This indicates that the object had recently returned to its original location. The displacement is therefore equal to ZERO.

Thus, There are two types of quantities in physical science. both the scalar and vector quantities. While the vector quantity has both the magnitude and direction, the scalar quantity just has the magnitude. The displacement is equal to zero.

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Answer: definitely parallel !

Explanation: Hope This helps!

Answer:

B:parallel

Explanation:

just finished cumulative exam and this was a question

The force on the pivot at point b is 1390 N. Considering that a force is a vector quantity, it has both a magnitude and a direction.

Choose a rotation axis.

Στ = 0 (rotational equilibrium)

Στ = +(1.2m)⋅(F1) – (4.6m)⋅(50kg⋅9.8m/s²) = 0

F1 = 1880 N

ΣF = 0 (translational equilibrium)

ΣFy = F1 – F2 – mg

= 1880 N – F2 – (50kg⋅9.8m/s²) = 0

F2 = 1390 N

The force on the pivot is 1390 N

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Answer:

c

Explanation: