What is the kinetic Energy of a 350 kg object that is moving with a speed of 5 m/s?

What is the kinetic energy of a 65 kg object that is moving with a speed of 20 m/s?

I just need the work not the answers, sorry if its too much.​

Answer:

Explanation:

Refraction of a light ray may be defined as:

D. changing direction while crossing a boundary ​

8000 Joules is the amount of work required to haul up the equipment.

To calculate the work required to haul up the equipment, we need to consider two components: the work done against gravity and the work done against the weight of the rope.

The force due to gravity is given by the weight of the equipment, which is 100 N. The distance over which the force is applied is the height the equipment is being hauled, which is 40 meters. The work done against gravity can be calculated using the formula:

Work = Force × Distance

Work against gravity = 100 N × 40 m = 4000 N·m or 4000 J (Joules)

The weight of the rope can be calculated by multiplying the weight per meter (0.8 N/m) by the length of the rope (40 m):

Weight of the rope = 0.8 N/m × 40 m = 32 N

Since the rope is being hauled up, the work done against the weight of the rope is the same as the work done against gravity. Therefore, the work against the weight of the rope is also 4000 J.

The total work required to haul up the equipment is the sum of the work against gravity and the work against the weight of the rope:

Total work = Work against gravity + Work against rope weight

Total work = 4000 J + 4000 J

Total work = 8000 J

Therefore, it will take 8000 Joules of work to haul up the equipme

Learn more about Work

brainly.com/question/29048041

#SPJ11

Answer:

I think it is A or B, but more B as for John used 20 more net force. I recommend doing some research, sorry.

Answer:

I think the answer is B, I may be wrong...

Explanation:

According to the given statement , the potential difference V across the resistor R is 3105 V.

To find the potential difference V, we can use Ohm's Law and the formula for the potential difference across a capacitor.

First, let's calculate the current flowing through the circuit. We are given that I = 2.5 A.

Next, we can calculate the total resistance in the circuit using the formula R = R₁ + R₂. Given that R₁ = 40 Ω and R₂ = 1202 Ω, we can calculate the total resistance:

R = 40 Ω + 1202 Ω = 1242 Ω

Now, we can calculate the charge stored in the capacitor using the formula Q = C * V, where Q is the charge, C is the capacitance, and V is the potential difference across the capacitor. We are given that Q = 18 μC and C = 3 μF. Plugging these values into the formula, we can solve for V:

18 μC = 3 μF * V
V = 18 μC / 3 μF
V = 6 V

Finally, we can calculate the potential difference V across the resistor R. Using Ohm's Law, we can use the formula V = I * R:

V = 2.5 A * 1242 Ω
V = 3105 V

So, the potential difference V across the resistor R is 3105 V.

In conclusion, the potential difference V across the resistor R is 3105 V.

To more about capacitor visit:

https://brainly.com/question/31627158

#SPJ11

The  the capacitance of the cable is 18 nF, when the resulting potential difference between the two conductors is 420 V.

The capacitance of a cable is 125 nF when the resulting potential difference between the two conductors is 60 V. If the resulting potential difference between the two conductors is 420 V, what is the capacitance, in nanofarads, of the cable

Given:

Capacitance, C = 125 nF

Initial potential difference, V1 = 60 V

Final potential difference, V2 = 420 V

To find:

The capacitance of the cable is given by the formula:

Capacitance, C = (Charge, Q) / (Potential difference, V)

Or,

Charge, Q = C × V

We know that,

Charge, Q1 = C × V1

Charge, Q2 = C × V2

If we divide Q2 by Q1, then we get:

C × V2 / C × V1

= Q2 / Q1

Or,

C × V2 / C × V1 = (Final charge) / (Initial charge)

From the principle of conservation of charge, we know that:

Charge cannot be created or destroyed; it can only be transferred from one place to another.

Therefore, the initial charge and final charge are the same.

So, we can say that:

Charge, Q2 = Charge, Q1

Hence, C × V2 = C × V1

Or,

C = V1 / V2 × C1

Substituting the values, we get:

C = 60 V / 420 V × 125nF

= 18 nF (approximately)

Therefore, the capacitance of the cable is 18 nF, when the resulting potential difference between the two conductors is 420 V.

To learn more about capacitance visit;

https://brainly.com/question/28300184

#SPJ11

Answer:

\( \boxed{ \sf{See \: below}}\)

Explanation:

Seismograph is a computerized instrument that measures the intensity , origin and speed of the earthquake.

Hope I helped!

Best regards! :D

~\( \sf{TheAnimeGirl}\)

When it hits the ground, its motion will stop abruptly due to the impact with the ground.

If you were to hold an object in your hand and simply let go, the object will fall to the ground. The motion of the object from the instant it is released to the instant it hits the ground can be described as free fall.Free fall is the motion of an object under the influence of gravity. When an object is released from a height, it will accelerate downwards towards the ground at a rate of 9.8 meters per second squared. This is due to the force of gravity acting on the object, which causes it to accelerate towards the center of the earth.

The rate of acceleration is constant and independent of the mass of the object, which means that all objects will fall at the same rate in a vacuum. However, in reality, air resistance will cause objects to fall at different rates depending on their size, shape, and density.The speed of the object will increase as it falls due to the acceleration caused by gravity. This means that the object will be moving faster and faster as it gets closer to the ground.

When it hits the ground, its motion will stop abruptly due to the impact with the ground.

Learn more about motion here:

https://brainly.com/question/13966796

#SPJ11

The best way to study warm (1000 K) young stars forming behind an interstellar dust cloud would be to use infrared light. So option d is correct.

Interstellar dust clouds can block or scatter shorter-wavelength light, such as blue light and ultraviolet light, making it difficult to observe objects behind them. However, longer-wavelength infrared light can penetrate through the dust cloud with less scattering and absorption, allowing us to study the objects hidden behind the dust.

Infrared light is particularly effective for studying warm objects, as they emit most of their radiation in the infrared range. By using infrared telescopes and detectors, astronomers can observe the thermal radiation emitted by the young stars and study their formation and evolution processes.Therefore option d is correct.

To learn more about -wavelength visit: https://brainly.com/question/10750459

#SPJ11

Answer:

C. a disturbance that travels through a medium with a transfer of energy and without a transfer of matter

Explanation:

A wave is any disturbance that transfers energy from one location to the other via a substance called medium. It is important to note that a wave only conveys energy and not matter. For example, sound wave is a type of wave that carries sound energy from one place to another via mediums such as water, air etc.

Hence, according to this question, a wave can be described as a disturbance that travels through a medium with a transfer of energy and WITHOUT A TRANSFER OF MATTER.

The maximum height reached by the roller coaster is  16.53 m.

The maximum height reached by the roller coaster is calculated by applying the principle of conservation of energy.

potential energy of the roller coaster at maximum height = kinetic energy at the lowest point

P.E = K.E

mgh = ¹/₂mv²

h = ( v² ) / ( 2g )

where;

h = ( 18² ) / ( 2 x 9.8 )

h = 16.53 m

Learn more about maximum height here: https://brainly.com/question/12446886

#SPJ1

Given:

The gravitational constant, G=6.67259×10⁻¹¹ N·m²/kg⁻²

The mass of the moon, M=7.36×10²² kg

The radius of the orbit of the satellite, R=955.2 km=955.2×10³ m

To find:

1. Satellite's speed.

2. The period of satellite.

3. The acceleration of the satellite.

Explanation:

1.

The gravitational force applied by the moon on the satellite provides the satellite with the centripetal force that is neccessary for the satellite to orbit the moon.

Thus,

Where F_c is the centripetal force, F_g is the gravitational force, and v is the orbital velocity of the satellite.

On substituting the known values,

2.

The orbital period of the satellite in seconds is given by,

Thus the period of the satellite in hours is given by,

On substituting the known values,

3.

The acceleration of the satellite is given by,

On substituting the known values,

Final answer:

1. The orbital velocity of the satellite is 23267.46 m/s

2. The period of the satellite is 0.74 hr

3. The acceleration of the satellite is 5.38 m/s²

In an PNP transistor, the base controls the amount of current passing through it while allowing current flow from the base to the emitter.

To know more about transistors visit:

https://brainly.com/question/11297995

#SPJ4

Answer:

the answer is c. hope this help you out

Answer:

Wave frequency

Explanation:

Wave frequency is the number of waves that pass a fixed point in a given amount of time.

Answer:

a lens that causes parallel light rays to separate from each other

Answer:

a lens that causes parallel light rays to focus at a specific location

I took the test and got it right! :)

The eigenvalues of the linear transformation T are λ = 0 and λ = 2. The eigenvectors corresponding to λ = 0 are (1, 0, 0) and (0, 1, -1), while the eigenvectors corresponding to λ = 2 are (1, 0, 1) and (0, 1, 0).

To find the eigenvalues and eigenvectors of the linear transformation T, we need to solve the equation T(v) = λv, where v is a non-zero vector and λ is a scalar.

Let's start by finding the eigenvalues:

T(x, y, z) = (0, 3x, 2x + 3z)

To satisfy T(v) = λv, we set each component equal to zero and solve for λ:

3x = λx         => (3 - λ)x = 0

2x + 3z = λz

For λ = 0, we have (3 - 0)x = 0, which gives x = 0. Substituting x = 0 in the second equation, we have 3z = 0, which gives z = 0. Therefore, the eigenvector corresponding to λ = 0 is (0, 1, -1).

For λ = 2, we have (3 - 2)x = 0, which gives x = 0. Substituting x = 0 in the second equation, we have 3z = 2z, which gives z = 0. Therefore, the eigenvector corresponding to λ = 2 is (1, 0, 1).

Now, let's find the eigenvectors corresponding to the eigenvalues:

For λ = 0, we substitute λ = 0 in the equation 3x = λx, which gives 3x = 0. Solving for x, we get x = 0. Therefore, the eigenvector corresponding to λ = 0 is (0, 1, -1).

For λ = 2, we substitute λ = 2 in the equation 3x = λx, which gives 3x = 2x. Solving for x, we get x = 0. Therefore, the eigenvector corresponding to λ = 2 is (1, 0, 1).

In summary, the eigenvalues of T are λ = 0 and λ = 2. The corresponding eigenvectors are (0, 1, -1) and (1, 0, 1) for λ = 0 and λ = 2, respectively.

To know more about linear transformation refer here:

https://brainly.com/question/30585642#

#SPJ11

Answer:

because these units are derived from combinations of two or more of the seven base units

The area of the given rectangular piece of plastic is 99900 square millimeters.

In mathematics, a rectangle is a shape with 4 straight sides, 4 right angles, and opposing sides of equal length. Each angle of the rectangle is a right angle, which means that it measures 90 degrees. A rectangle has two diagonals that are congruent, bisecting each other. A rectangle has opposite sides that are parallel and equal in length. In general, the formula for finding the area of a rectangle is given as A = l x w, where A is the area, l is the length, and w is the width. In the given question, the piece of plastic is originally rectangular, and suppose that a = 270 mm and b = 370 mm. Therefore, the area of the rectangular plastic is calculated as follows ; A = 270 mm × 370 mm.A = 99900 mm².In the above calculations, the area of the rectangle is 99900 square millimeters.

for such more questions on area

https://brainly.com/question/30231626

#SPJ8

Hi there!

We can use the conservation of angular momentum to solve.

\(L_i = L_f\\\\I\omega_i = I\omega_f\)

I = moment of inertia (kgm²)

ω = angular velocity (rad/sec)

Recall the following equations for the moment of inertia.

\(\text{Solid cylinder:} I = \frac{1}{2}MR^2\\\\\text{Object around center:} = MR^2\)

Begin by converting rev/sec to rad sec:

\(\frac{0.17rev}{s} * \frac{2\pi rad}{1 rev} = 1.068 \frac{rad}{s}\)

According to the above and the given information, we can write an equation and solve for ωf.

\(1.068(\frac{1}{2}(34)(1.6)^2 + (79)(1.6)^2) = \omega_f(\frac{1}{2}(34)(1.6^2) + 79(0^2))\\\\\omega_f = \boxed{6.03 \frac{rad}{sec}}\)

Hi there!

We can use the following (derived) equation to solve for the final velocity given height:

vf = √2gh

We can rearrange to solve for height:

vf² = 2gh

vf²/2g = h

Plug in the given values (g = 9.81 m/s²)

(13)²/2(9.81) = 8.614 m

We can calculate time using the equation:

vf = vi + at, where:

vi = initial velocity (since dropped from rest, = 0 m/s)

a = acceleration (in this instance, due to gravity)

Plug in values:

13 = at

13/a = t

13/9.81 = 1.325 sec

The ground state of the hydrogen atom is a state in which the electron orbits the nucleus in the lowest possible energy level.

The speed of an electron in the ground state can be calculated using the following formula: v = αc/n, where α is the fine-structure constant, c is the speed of light, and n is the principal quantum number of the electron. For hydrogen, the principal quantum number n is equal to 1, so we can substitute this value in the formula:v = αc/1v = αcThe fine-structure constant, α, is approximately equal to 1/137, and the speed of light, c, is approximately 3.00 × 10^8 m/s. Therefore, we can calculate the orbital speed of the electron as follows:v = αc = (1/137) × 3.00 × 10^8 m/s = 2.19 × 10^6 m/s

Therefore, the orbital speed of an electron in the ground state of a hydrogen atom is approximately 2.19 × 10^6 m/s.

Learn more about speed here:

brainly.com/question/17661499

#SPJ11

Answer:

Explanation:

Ruler. A steel ruler aids the measurement and layout of straight lines. The ruler, also called "straightedge" or "straight-edged ruler," is a long, thin strip of wood, metal or plastic marked with increments of measurement.

Measuring Tape. The modern measuring tape's roughly palm-sized casing contains a coiled strip of metal marked with increments of measurement. The metal strip, called "tape," attaches to a spring which automatically retracts the tape into the casing following use.

Walking Tape Measure. The walking tape measure, also called "surveyor's measure," records the distance traveled by a wheel. An operator pushes the measure's wheel, similar to a bicycle wheel, by a handle as an attached ticker box displays feet or meters in the same format as a car's odometer.

Laser Measure. The laser measure offers point and shoot distance measurement. In its most basic form, a laser measure is a hand-held electronic device with a digital display.

One statement that is not true is that UV radiation is a type of electromagnetic radiation. It is also a type of ionizing radiation. UV radiation is actually a form of non-ionizing radiation.

UV radiation, or ultraviolet radiation, is a type of electromagnetic radiation that falls between visible light and X-rays on the electromagnetic spectrum. It is often categorized into three types: UVA, UVB, and UVC. Unlike ionizing radiation, such as X-rays and gamma rays, which have enough energy to remove tightly bound electrons from atoms or molecules, UV radiation lacks the necessary energy to ionize atoms or molecules. Instead, it primarily interacts with the outermost electrons of atoms or molecules, leading to chemical reactions and causing biological effects.

UV radiation is commonly associated with sunlight and has various effects on living organisms and materials. It can cause sunburn, premature aging of the skin, and an increased risk of skin cancer. Exposure to excessive UV radiation can also damage the eyes and impair the immune system. It is important to protect oneself from excessive UV exposure by wearing sunscreen, protective clothing, and sunglasses.

Learn more about UV radiation here:

https://brainly.com/question/4144192

#SPJ11

Answer:

1. Both are respiratory organs found in vertebrates.

2. Both enable the inhalation of oxygen and exhalation of carbon dioxide in the bodies of their host.

3. Respiratory membranes present in both make the exchange of gases easier.

4. Blood vessels found around them enable the breathing process.

Explanation:

Gills are respiratory organs which can be found in animals that live in water. These include fishes, amphibians like frogs, anthropods like insects, and annelids like worms. Gills are surrounded by respiratory  membranes known as gill lamellae which have a large surface area that makes breathing easier. Blood vessels also are found around gills.

The lung is also a respiratory organ found in humans. It runs from a windpipe known as the trachea and branches into bronchi which contain the bronchioles. Alveoli ducts contain alveoli sacs and then alveoli which are membranes that enable the breathing process.

Both are similar because they are respiratory organs found in animals with backbones. They are surrounded by blood vessels and membranes that make the breathing process easier.

Answer:

a. The average speed is 4 mi/hr

b. The average velocity is 0 mi/hr

Explanation:

a. The average speed is given by the following formula;

\(Average \ speed = \dfrac{Total \ Distance}{Total \ Time}\)

The given information are;

The time it took for one friend to run to his friend's house = 30 minutes

The distance between the two houses = 3 miles

The time it took for the friend to walk home = 1 hour

Therefore, the distance the friend ran going to his friend's house = 3 miles and the distance the friend walked going back his house = 3 miles

The total distance travelled = 3 + 3 = 6 miles

The total time taken = 1 hour + 30 minutes = 1 hour 30 minutes = 1.5 hours

Therefore;

\(The \ average \ speed = \dfrac{Total \ Distance}{Total \ Time} = \dfrac{6 \ miles }{1.5 \ Hours} = 4 \ miles \ per \ hour\)

The average speed for the entire trip = 4 mi/hr

b. The average velocity is the total change in position divided by the total time taken to make the change or total displacement divided by the total time for the displacement

Mathematically, average velocity is given as follows;

\(The \ average \ velocity = \dfrac{Final \ location - Initial \ location}{Time \ taken \ for \ the \ change \ in \ location}\)

\(The \ average \ velocity = \dfrac{Total \ displacement}{Time \ taken \ for \ the \ change \ in \ location}\)

\(The \ average \ velocity = \dfrac{Total \ change \ in \ location}{Time \ taken \ for \ the \ change \ in \ location}\)

Given that the friend changed his location to his friend's house, a distance of 3 miles he  we have;

Initial change in location of the friend = 3 miles

After which the friend then relocates back to his house (and we know that it is the same journey but in opposite direction, he  we have;

Final change in location of the friend = -3 miles

We are given that he ran to his friend's house and walked back home in a  total time of 1 hour + 30 minutes = 1.5 hours, therefore, we have;

\(The \ average \ velocity = \dfrac{Sum \ total \ of \ change \ in \ location}{Time \ taken \ for \ the \ change \ in \ location} = \dfrac{3 + (-3) }{1.5}\)

\(The \ average \ velocity = \dfrac{3 \ miles + (-3) \ miles }{1.5} = \dfrac{0 \ miles }{1.5} = 0 \ mi/hr\)

The average velocity = 0 mi/hr.

Friction is a contact force that exists between two rough surfaces in contact with each other. The friction force between two surfaces prevents and opposes any kind of sliding motion between the two surfaces.

What is meant by Friction?

To learn more about Friction refer to

https://brainly.com/question/23161460

#SPJ4

Answer:

B. New cells are created from pre-existing cells in the human body.

Explanation:

According to the cell theory, the correct assumption from the student's investigation is that "new cells are created from pre-existing cells in the human body".

So, the student is correct to say that new cells are created from pre-existing cells in the human body.