In dc electrode positive, how much power is at the work clamp?.

Considering the definition of weight, on Earth's surface at sea level, the weight of an object with a mass of 180 kg is 1764 N.

Mass is the amount of matter that a body contains and weight is the action exerted by the force of gravity on the body.

The mass of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

The weight is calculated as the product of the mass of the object and the value of the gravitational acceleration or gravity:

Weight= mass× gravity

The value of the acceleration constant on Earth is 9.8 m/s². The weight is proportional to the mass of the object. The unit of weight is expressed in Newton (N).

In this case, you know:

Replacing on the definition of weight:

Weight= 180 kg× 9.8 m/s²

Solving:

Weight= 1764 N

Finally, on Earth's surface at sea level, the weight of an object with a mass of 180 kg is 1764 N.

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Given what we know, we can confirm that amongst the wave types mentioned both X-rays and radio waves are able to transmit energy through a vacuum.

This is due to the fact that unlike sound, water, and seismic waves that transmit energy through air, water, or the earth, the waves mentioned above, those being radio and x-rays, do not need a medium through which to propagate. This allows them to exist and transmit energy even in a vacuum such as outer space, which is corroborated by their existence in space.

Therefore, we can confirm that amongst the wave types mentioned both X-rays and radio waves are able to transmit energy through a vacuum.

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Answer:

we can confirm that amongst the wave types mentioned both X-rays and radio waves are able to transmit energy through a vacuum.

Explanation: Edmentum

The following statement best describes how gravity helps protoplanets create layers in that gravity pulls materials and generates compaction, which produces heat and causes materials to melt, sink, and rise. Option A is correct.

Gravitation is a natural law by which all things with all matter are attracted towards one another. gravity causes weight to all matter and the gravity of the moon causes the ocean tides.

The force that draws massed bodies toward one another is known as gravity. Gravitatithus

According to the alternatives, gravity pulls things together and causes compaction, which generates heat and causes things to melt,

Thus, we may draw the conclusion that gravity draws materials and creates compaction, which generates heat and causes materials to melt, sink, and rise.

Hence option A is correct,

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Answer:

its A

Explanation:

Answer:

c. Light energy to thermal energy

Explanation:

The energy from the sun comes in the form of light energy but is converted to thermal energy.

Answer:

Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth. The gravitational pull of the moon pulls the seas towards it, causing the ocean tides. Gravity creates stars and planets by pulling together the material from which they are made.

Explanation: Hope it helps you :))))

Have a good day

Answer:

See below

Explanation:

At the rope end where Cliff is :

W = f x d  

    100 N * 18 = 1800 J   of work input

13.)    At the weight end

          work done = f x d

                             = 500 N * 3 m = 1500 J    of work output

Cliff  only got 1500 J of work OUTPUT with 1800 J of work INPUT

    1500 / 1800 = 83.33 efficiency

From what we know, we can confirm that the phrase in the question best describes the term "Theory".

We can say that this is the exact definition of a theory. In other words, a theory is an idea or hypothesis proposed as a possible solution to a known problem, which is backed up by facts and conclusions derived from many scientific experiments and investigations.

Therefore, we can confirm that the phrase in the question best describes the term "Theory".

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Given data in the problem :-

From Newton's Laws of Motion we know that ,

v = u + at  [t = Time taken by aircraft to cover the distance]

⇒ 34 = 0 + 4t

⇒ t = 34/4 s

∴  t = 8.5 s

From Newton's Laws of Motion we also know that ,

S = u.t + 1/2a.t^2

⇒ S = 0×8.5 + 1/2 × 4 × (8.5)^2 m

∴  S = 144.50 m

Thus the distance travelled by the aircraft while accelerating is 144.50 meter .

The height at point B will be 30 m. Option D is corect.

Simple harmonic motion is a form of periodic motion in which the restoring force on a moving item is proportionate to the amount of the object's displacement.

At the highest point the kinetic energy is equal to the potential energy on the maximum height h;

[tex]\rm mgh = \frac{1}{2} mv^2 \\\\ 2gh=v^2 \\\\\ h= \frac{v^2}{2g} \\\\\ h=\frac{14^2}{2 \times 9.81}\\\\\ h= 9.9 \ m[/tex]

The height at point B is calculated by adding the initial height to the obtained height as;

[tex]\rm h_B = 15+9.9 \\\\ h_B = 29.9 \ m \\\\ h_B=30 \ m[/tex]

The height at point B will be 30 m.

Hence, option D is corect.

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Answer: it's c. ← 63 N and → 73 N

Explanation:

27. The energy , in electronvolts, of an emitted photon when an electron transition from n=3 to n = 2 is  -1.89 eV.

28. The energy of this emitted photon in joules is -3.0278 x 10⁻¹⁹ Joules.

29. The frequency of the emitted photon is 4.572 x 10¹⁴ Hz.

30. The color of light associated with this photon is Red.

It is the number of oscillations per second of the sinusoidal wave.

Given is the Great Nebula in the constellation Orion consists primarily of excited hydrogen gas.

The electrons in the atoms of excited hydrogen have been raised to higher energy levels. When these atoms release energy, a frequent electron transition is from the excited n = 3 energy level to the n = 2 energy level, which gives the nebula one of its characteristic colors.

27. The energy of transition between n = 3 to n = 2 is

E = R h e (1/n₁² - 1/n₂²)    

where R = Rydberg constant and h = Planck's constant.

Substitute the values, we get

E = 1.0974 x 10⁻⁷ x 6.626 x 10⁻³⁴ x 1.6 x 10⁻¹⁹ (1/3² - 1 /2²)

E = -1.89 eV

28. Energy in joules can be obtained by multiplying  1.6 x 10⁻¹⁹ . So we have

E =  -1.89 eV x   1.6 x 10⁻¹⁹ J/eV

E =  -3.0278 x 10⁻¹⁹ Joules

29. Wavelength associated with the photon emitted is

1/λ = R (1/n₂² - 1/n₁² )

Substitute the values, we get

1/ λ  = 1.524 x 10⁶ /m

The frequency is related to the wavelength as

f = c/λ   where c = speed of light

f = 3 x 10⁸ x  1.524 x 10⁶

f = 4.572 x 10¹⁴ Hz

30. The color of light associated with the photon of calculated frequency is Red.

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The slope of the illustrated graph would give us the velocity of the object whose motion is plotted in the graph.

Velocity refers to the rate of movement of objects along a particular line. In other words, the velocity of an object is the speed of the object in a specific direction relative to time.

Also, velocity = displacement/time.

In the graph, the slope is given by: Δy/Δx = displacement/time = velocity.

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Answer:

Explanation:

Remark

Though you  do not know what height the previous drone reached, I would think reading 8000 m would be quite an accomplishment. Answer 1: A

B: I wouldn't pick B. Increased cost isn't going to contribute to design success.

C. If the efficiency is low to start with, increasing it some won't matter. On the other hand if the efficiency is moderate or good increasing it by 35% is a good thing. Let's hold on to this answer.

D: It has to work at low altitudes in order to work at high altitudes. I wouldn't pick D

E: Popularity is something you never know will happen. I think C is your best second answer.

Answer: A and C

The statement best describes deena's error is: Find acceleration by finding the area of the rectangle above the line.

Acceleration is given by the ratio of Resultant or total force acting on any object and the its mass.

Deena made a chart to summarize features of a velocity vs. time graph for objects with constant acceleration and objects with constant velocity.

In the  velocity time graph, the area under the curve shows the displacement of the object and the slope represents the acceleration.

Thus, the deena's error is  Find acceleration by finding the area of the rectangle above the line.

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Answer:

What the other dude said

Explanation:

Answer:

they protect public safety and market fairness. For example, food safety regulations help protect consumers from pathogens that could cause widespread illness

Answer:

Government regulations are necessary because they protect public safety and market fairness. For example, food safety regulations help protect consumers from pathogens that could cause widespread illness. By creating regulations, the government can make food-borne illness less likely. However, even though these regulations are necessary, they must still meet constitutional requirements. Producers and consumers have the right to own and use property, among other constitutional rights.

Explanation:

EDGE 2023

The statements true concerning the strips with a positive versus a negative hall voltage are a and d.

The hall voltage is the potential created across a current-carrying metal-strip when the strip is placed in a magnetic field perpendicular to the current flow in the strip. it is used as a research tool to probe the movement of charges in materials, as well as determining the blood flow rate.

The top strip possess positive charge carriers, and the electric field points are in the same direction as the electric force.

The bottom strip has negative charge carriers, and the magnetic force points upward along the plate.

This will create an equilibrium of the magnetic force and electrostatic force.

Thus, the correct option are a and d.

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The height of the chairlift above the snow when the ski falls off is determined as 20.4 m.

The height of the chairlift is calculated from the principle of conservation of mechanical energy as shown below;

P.E = K.E

mgh = ¹/₂mv²

gh = ¹/₂v²

h = v²/2g

where;

h = (20)²/(2 x 9.8)

h = 20.4 m

Thus, the height of the chairlift above the snow when the ski falls off is determined as 20.4 m.

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Answer:

D. Energy is converted between kinetic and gravitational potential energy.

Explanation:

The change which shows the best application of Newton’s laws of motion to achieve this goal is decreasing the mass.

It states that the force F is directly proportional to the acceleration a of the body and its mass.

F =ma

or a = F/m

The mass and acceleration are inversely proportional to each other. If mass is decreased, then the acceleration is increased.

Thus, the mass should be decreased to increase the acceleration.

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Answer: D

Explanation: Just did EDGE

From the law of the conservation of energy;  the ratio of the total kinetic energy after the collision to the total kinetic energy before the collision must be 1.

The term momentum is the product of mass and velocity. The principle of conservation of linear momentum states that total momentum before collision must be the same as the total momentum after collision thus the  ratio of the total momentum after the collision to the total momentum before the collision must be 1.

Also, from the law of the conservation of energy;  the ratio of the total kinetic energy after the collision to the total kinetic energy before the collision must be 1.

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Explanation:

displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars. To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of combination.

Answer:

False

Explanation:

It is actually I = V/R and V = I × R

The cross-sectional area of the tape is determined as 3.9 x 10⁻⁵ ft².

The volume of the tape is calculated as follows;

volume = mass/density

volume = (1.95 lb)/(490 lb/ft³)

volume = 3.98 x 10⁻³ ft³

V  = AL

A = V/L

A = 3.98 x 10⁻³ ft³/102 ft

A = 3.9 x 10⁻⁵ ft²

Thus, the cross-sectional area of the tape is determined as 3.9 x 10⁻⁵ ft².

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Power in a rotating body like shaft is the product of Torque and the angular speed of that shaft.

P = Tω

The Torque is related to the shearing stress is

T = π/16 xτ(Do³ -Di³)

* Given is the Torque T= 7.5 kN.m, the inner diameter Di = 0.075m, outer diameter Do= 0.1m

Then, the maximum shearing stress will be

7.5 x 10³ =  π/16 xτ x (0.1³ - 0.075³)

τ = 66.125 MPa

Thus, the shearing stress is 66.125 MPa.

* From the Torque equation

T/J = Gθ/l

Where, J = π/32 (Do⁴ -Di⁴) = 0.00000671 m⁴

l = length of shaft = 2m, modulus of rigidity G = 80GPa = 80x 10⁹ Pa.

Substitute the values, we get the angle of twist

7.5 x10³ /0.00000671 = 80x 10⁹xθ/2

θ = 0.0279 rad.

Thus, the angle of twist is0.0279 rad.

* Power generated by the shaft is

P = 2πNT/60

where N = revolution/ minute = 200

Put the values, we get

P =  2π x 200 x 7500/60

P = 157 kW.

Thus, the power generated is 157 kW.

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Answer:

Equation of Special Relativity

[tex]E=mc^2[/tex]

where:

First, convert 4 g into kilograms as mass is measured in kg:

[tex]\implies \sf 4\:g = 0.004\:kg=4 \times 10^{-3}\:kg[/tex]

Substitute the given values into the equation and solve for E:

[tex]\begin{aligned}E & = mc^2\\\implies E & = \sf (4 \times 10^{-3}) \cdot(3 \times 10^8)^2\\& = \sf (4 \times 10^{-3}) \cdot (3^2 \times 10^{8(2)})\\& = \sf (4 \times 10^{-3}) \cdot (9 \times 10^{16})\\& = \sf 4 \cdot9 \times 10^{-3} \cdot10^{16}\\& = \sf 36 \times 10^{(-3+16)}\\& = \sf 36 \times 10^{13}\\& = \sf 3.6 \times 10^{14}\: \sf J \end{aligned}[/tex]

Use Albert Einstein's equation

m=0.004kg

The average acceleration between t = 5.6 s and t = 8.5 s is 2.31  m/s²

Acceleration is defined as the rate change of velocity with time.

acceleration a = (Δv) / (Δt)

An object is moving with initial velocity u =5.7 m/s and its final velocity v= -1.0 m/s.

Time taken for the change in speed, t= 8.5 - 5.6 = 2.9 seconds

The acceleration is given by

a = (-1 - 5.7)/ 2.9

a = -  2.31 m/s²

|a | = 2.31 m/s²

Thus, the object's acceleration is 2.31 m/s²

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[tex]\text{Power,}~ P = \dfrac{\text{Work done}}{\text{Time}}\\\\\\~~~~~~~~~~~~~=\dfrac{8 \times 1000~J}{4 \times 3600~ s}\\\\\\~~~~~~~~~~~~~~=\dfrac{80}{144}\\\\\\~~~~~~~~~~~~~~=0.56~ W[/tex]

Answer:

Explanation:

Energy used is power multiplied by time.

Power is energy used divided by time

8 kj is 8000 j

4 hours is 240 minutes

240 minutes is 14400 seconds

8000j divided by 14400 is 0.55 recurring, measured in watts

Answer:

Explanation:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for

λ

:

λ

=

v

f

Let's plug in our given values and see what we get!

λ

=

340

m

s

440

s

−

1

λ

=

0.773

m