the current drawn by a 1200-w toaster connected to 120 v is 10 a. the resistance of the toaster coils is

Answer:

Balanced forces: When a number of forces acting on a body do not cause any change in its state of rest or of uniform motion along a straight line then the forces are said to be balanced forces. In other words, a body is said to be underbalanced forced when the resulting force acting on the body is zero.

The balanced forces:

⋅ Cannot set any stationary body into motion.

⋅ May change the shape and size of soft objects.

⋅ Cannot change the speed/velocity of a moving body.

Unbalanced forces:

When the resultant of all the forces acting on a body is not zero, then forces are called unbalanced forces.

Example:

⋅ Game of tug of war: When the forces exerted by both the teams are equal, then the rope does not move. But, if the force applied by team A is greater than team B, then the rope, as well as members of the weaker team, i.e., B, will be pulled towards A. The unbalanced force can (a) Set a stationary body in motion.

⋅ Set a moving body at rest.

⋅ Change the direction of motion.

Explanation:

give me an one thanks please

Answer:

Hi, thank you for posting your question here at Brainly.

To find the velocity of light or any electromagnetic wave, we use the equation: v = wavelength * frequency. Substituting,

v = 0.5 m * 930 1/s

v = 465 m/s

Brainiest please

Explanation:

The electric potential at the center of one of the rings is 91.111 V.  The electric potential at the center of one of the rings can be calculated using the formula for electric potential, which is:

V = F / q

where V is the electric potential, F is the force on a charge q, and q is the charge of the particle.

In this case, the force on a charge q at a distance r from a point charge q1 is given by:

F = k * (q1 * q / r)

where k is the Coulomb constant (9 * 10^9 N m^2 C^(-2))

The charge on each of the rings is q = +9.0 nC, so the force on a charge q at a distance r from the center of the ring is:

F = k * (+9.0 nC * +9.0 nC / r)

= 810 N

The electric potential at the center of one of the rings is:

V = F / q = 810 N / (9.0 nC) = 91.111 V

So the electric potential at the center of one of the rings is 91.111 V.  

Learn more about electric potential

https://brainly.com/question/12645463

#SPJ4

Answer:

About 22 hours in flight time.

Explanation:

It wouldn't give me the walking time.

Hope I helped ya.

< Sarah >

Answer:

Hmm idk u was tryna take the trip or sum

Explanation:

Relation between velocity and time

\(\\ \sf\Rrightarrow Velocity=\dfrac{Displacement}{Time}\)

Or

\(\\ \sf\Rrightarrow \vec{v}=\dfrac{dx}{dt}\)

Now

\(\\ \sf\Rrightarrow v\propto \dfrac{1}{t}\)

Answer: the awnser is 19k

Explanation:

Answer:

hope the answer helped you. pls mark as brainliest

Explanation:

Newton's second law states that the acceleration an object experiences due to a given force is inversely proportional to its mass, that is --

a=Fm

If the acceleration is 10m/s2 and the object's mass is 2kg , we can use Newton's second law to find that:

10m/s2=F2kg

F=20kg m/s2 , or 20N .

Answer:

Alternative energy is energy sources other than fossil fuels, including renewable sources and nuclear energy. However, nuclear energy is not classified as a renewable energy source, because it is mined from uranium and thorium elements, which cannot be replenished. Hoped this helped!!!

Answer:

The speed of the object is 9.8 meters per second after one second of free fall.  In that one second, the object travels 4.9m.

Explanation:

On Earth, acceleration due to gravity is 9.8\(\frac{m}{s^2}\).  Use kinematic equation #1 to find the time it takes this object to achieve the given speed (v).

\(v=v_0+at\\a=9.8\frac{m}{s^2}\\v_0=0\frac{m}{2}\\v=9.8\frac{m}{s}\\9.8\frac{m}{s}=0.0\frac{m}{s}+(9.8\frac{m}{s^2})t\\t=\frac{9.8\frac{m}{s}}{9.8{m}{s^2}}\\t=1 s\)

This is intuitive.  The velocity of an object in free fall gains 9.8\(\frac{m}{s}\) per second unless acted upon by an outside force.

To find how far the object has fallen, insert the given and derived values into kinematic equation #2.

\(\Delta y=(\frac{v+v_0}{2})t\\\Delta y=(\frac{9.8\frac{m}{s}+0.0\frac{m}{s}}{2})(1 s)\\\Delta y=4.9m\)

Hope that helps.

The angular acceleration of the frictionless pulley that has a rope going over it the tension in the rope is 10 n on one side and 12 n on the other side is 16.06 rad/s²

The mass of the solid cylinder, m = 0.83kg and radius, r = 0.30 m

The moment of inertia = 1/2 mr²

I = 1/2 (0.83) (0.30)²

I = 0.03735 kg m²

The net torque = F₁r - F₂r = 12(0.3) - 10(0.3) = 0.6 Nm

Torque = moment of inertia (I) × angular acceleration (α)

Substituting the values,

α = 16.06 rad/s²

Therefore, the angular acceleration of the pulley is  16.06 rad/s².

Know more about angular acceleration here: https://brainly.com/question/29428475

#SPJ4

(complete question)

A frictionless pulley which can be modeled as a 0.83kg solid cylinder with a 0.30 m radius, has a rope going over it the tension in the rope is 10 n on one side and 12 n on the other side what is the angular acceleration of the pulley?

Answer:

If effort distance was 4 times, efficiency would be 100%.

Since it takes 5 times for effort distance, efficiency drops to output/input

output is 1*F

input is (1/4*F)*5

so: F/1/5*F/4 = 4F/5F = .8 or 80%

The efficiency of the lever is 80%.

To calculate the efficiency of the lever, we can use the formula for mechanical advantage and efficiency.

Mechanical Advantage (MA) is the ratio of the load (L) to the effort (E) in a lever system:

MA = Load / Effort

Given that the load is four times the effort applied:

Load = 4 * Effort

Also, the effort distance (dEffort) is five times the load distance (dLoad):

dEffort = 5 * dLoad

Now, we can write the formula for efficiency (η) of a lever system:

Efficiency (η) = (Mechanical Advantage / Ideal Mechanical Advantage) * 100%

The Ideal Mechanical Advantage (IMA) is the ratio of the effort distance to the load distance:

IMA = dEffort / dLoad

Substitute the given values into the IMA equation:

IMA = (5 * dLoad) / dLoad

IMA = 5

Now, we can calculate the Mechanical Advantage (MA) using the relationship between the load and effort:

MA = Load / Effort

MA = (4 * Effort) / Effort

MA = 4

Finally, we can calculate the efficiency (η):

Efficiency (η) = (Mechanical Advantage / Ideal Mechanical Advantage) * 100%

η = (4 / 5) * 100%

η = 0.8 * 100%

η = 80%

The efficiency of the lever is 80%.

To know more about efficiency here

https://brainly.com/question/31458903

#SPJ2

Answer:

Soluble - salt

Insoluble - sand and stapler pins

Explanation:

The salt is soluble because it is an ionic solid which ready dissolves in water to form a solution.

The sand is insoluble because, it is a non-metallic solid which does not readily dissolve in water while, the stapler pin is insoluble because it is a metallic solid which does not readily dissolve in water.

To stretch a spring by 0.10 m, 175 J of work must be performed.

To stretch the spring 0.10 m, you need to apply a force. The force required can be calculated using Hooke's Law, which states that the force required to stretch or compress a spring is proportional to the displacement from its equilibrium position.

F = -kx

where F is the force, k is the force constant of the spring, and x is the displacement from the equilibrium position.

In this case, k = 3.5 x 10⁴ N/m and x = 0.10 m.

So, F = - (3.5 x 10⁴ N/m) x (0.10 m)
F = - 3500 N

The negative sign indicates that the force is acting in the opposite direction to the displacement.

To calculate the work done in stretching the spring, we can use the formula:

W = (1/2)kx²

where W is the work done, k is the force constant, and x is the displacement.

In this case, W = (1/2) x (3.5 x 10⁴ N/m) x (0.10 m)²
W = 175 J

Therefore, you need to do 175 J of work to stretch the spring 0.10 m.

Learn more about springs on:

https://brainly.com/question/12253978

#SPJ11

The expression for the energy stored (E) in a stretched wire of original length (L), cross-sectional area (A), tension (T), and Young's modulus (Y) is given by E = Y * e * ln(L) * A

The work done to stretch the wire can be calculated by integrating the force applied over the displacement. In this case, the force applied is the tension (T) in the wire, and the displacement is the change in length (ΔL) from the original length (L) to the stretched length (L + ΔL).

The tension in the wire is given by Hooke's law, which states that the tension is proportional to the extension of the wire:

T = Y * (ΔL / L)

where Y is the Young's modulus of the material of the wire.

Now, let's calculate the work done to stretch the wire:

dW = T * dL

Integrating this expression from L to L + ΔL:

W = ∫ T * dL = ∫ Y * (ΔL / L) * dL

W = Y * ΔL * ∫ (dL / L)

W = Y * ΔL * ln(L) + C

Here, C is the constant of integration. Since the energy stored in the wire is zero when it is unstretched (ΔL = 0), we can set C = 0.

Finally, the expression for the energy stored in the wire (E) is:

E = W = Y * ΔL * ln(L)

or, if we substitute the cross-sectional area (A) and strain (e) of the wire, where e = ΔL / L:

E = Y * e * ln(L) * A

Thus, the expression for the energy stored (E) in a stretched wire of original length (L), cross-sectional area (A), tension (T), and Young's modulus (Y) is given by:

E = Y * e * ln(L) * A

Learn more about energy on

https://brainly.com/question/13881533

#SPJ1

Answer:

La fuerza resultante sobre q₃ es  -1.2245 × 10⁻¹⁵ i  + -0.24 × 10⁻¹⁵ j

La magnitud de la fuerza resultante sobre q₃ es aproximadamente 1.25 × 10⁻¹⁵ N

Explanation:

q₁ = -45 μC = -45 × 10⁻⁶ C

r₁₂ = 30 mm = 30 × 10⁻³ m

q₂ = 25 μC = 25 × 10⁻⁶ C

r₂₃ = 50 mm = 50 × 10⁻³ m

q₃ = 20 μC = 20 × 10⁻⁶ C

k = 9×10⁻⁹ N·m²/C²

Por lo tanto;

r₁₃ = √(50² + 30²) = 10·√(34)

F₁₂ = 9×10⁻⁹ × (-45 × 10⁻⁶)×(25 × 10⁻⁶)/(30 × 10⁻³)² = -1.125 × 10⁻¹⁴

F₁₂ = -1.125 × 10⁻¹⁴ N

F₂₃ = 9×10⁻⁹ × (20 × 10⁻⁶)×(25 × 10⁻⁶)/(50 × 10⁻³)² = 1.8 × 10⁻¹⁵ j

F₁₃ = 9×10⁻⁹ × (-45 × 10⁻⁶)×(20 × 10⁻⁶)/(10·√34 × 10⁻³)² = -2.38× 10⁻¹⁵

Los componentes de F₁₃ son;

-2,38 × 10⁻¹⁵ × cos (arctan (30/50)) = -2,04 × 10⁻¹⁵ j

-2,38 × 10⁻¹⁵ × sin (arctan (30/50)) = -1,2245 × 10⁻¹⁵ i

La fuerza resultante sobre la carga q₃, \(\left | \underset {F_3} \rightarrow \right |\) = \(\underset{F_{13}}{\rightarrow}\) + \(\underset{F_{23}}{\rightarrow}\)

∴ \(\left | \underset {F_3} \rightarrow \right |\) = 1.8 × 10⁻¹⁵ j + -1.2245 × 10⁻¹⁵ i + -2.04 × 10⁻¹⁵ j

La fuerza resultante sobre q₃ es \(\left | \underset {F_3} \rightarrow \right |\)  = -1.2245 × 10⁻¹⁵ i  + -0.24 × 10⁻¹⁵ j

La magnitud de la fuerza resultante sobre q₃,

\(\left | F_3 \right |\) = √((-1.2245 × 10⁻¹⁵)² + (-0.24 × 10⁻¹⁵)²) ≈ 1.25 × 10⁻¹⁵

La magnitud de la fuerza resultante sobre q₃, \(\left | F_3 \right |\) ≈ 1.25 × 10⁻¹⁵ N.

For an object to be in equilibrium, the sum of all the forces acting on it must be zero (sum of forces = zero) and the sum of all the torques applied to it must also be zero (sum of torques is zero). Additionally, the object must not be spinning and its speed must be zero (speed is zero).

Equilibrium is a state in which opposing forces or influences are balanced. It can refer to a physical, chemical, or biological system in which there is no net change in the position or direction of motion of its components. In economics, it is a situation in which all participants in the market have no incentive to change their behavior. Equilibrium is a necessary condition for markets to function efficiently. It is a key concept in many areas of economics, including microeconomics, macroeconomics, and international economics.

To learn more about equilibrium
https://brainly.com/question/517289
#SPJ4

Though the intent of the question is not clear but the guidelines that would help you carry the microscope from the laboratory to the bench are outlined below.

When carrying a microscope to and from a laboratory bench, it is important to handle it with care to avoid damaging the delicate components and lenses. Here are the steps to follow:

Make sure the microscope is turned off and unplugged before moving it.

Place one hand under the base of the microscope and use the other hand to support the arm or the back of the microscope.

Keep the microscope close to your body to maintain balance and stability while walking.

Avoid holding the microscope by the eyepiece or objective lens, as this can cause misalignment or damage to the lenses.

Take care not to bump the microscope against any other objects or surfaces while carrying it.

Learn more about microscope:https://brainly.com/question/18661784

#SPJ1

Electrical power (P) can be defined as the sum of these two numbers if voltage (V) equals Joules per Coulombs (J/C) and amperes (I) = charge (coulombs) per second (A = Q/t). This is due to the fact that electrical power can also be expressed as P = V*I, or voltage times amperes.

Electric Power can be explained as:

Electric power is the rate at which electrical energy moves across an electric circuit. The SI unit of power is the watt, or one joule per second. The suffixes used to represent thousands, millions, and billions of watts are kilowatts, megawatts, and gigawatts, respectively. Watts are subject to the same standard suffixes as other SI units.

A power law is an equation in which, regardless of the initial sizes of the two values, a relative change in one quantity results in a corresponding relative change in the other.

The Equation:

Here, it is explained that Power equals Current times Voltage (P=VxI), Current equals Power divided by Voltage (I=P/V), and Voltage equals Power divided by Current (V=P/I).

To know more about  electric power, click on the link below:

https://brainly.com/question/12371501

#SPJ4

Answer:

La velocidad de la onda es 5 m/s.

Explanation:

La velocidad de la onda puede calcularse como:

\( v = \frac{\lambda}{T} \)      (1)

Donde:

λ: es la longitud de onda de la ola = 15 m

T: es el período = 3 s

Entonces, reemplazando los valores de T y de λ en la ecuación (1) tenemos:

\( v = \frac{\lambda}{T} = \frac{15 m}{3 s} = 5 m/s \)                

Por lo tanto, la velocidad de la onda es 5 m/s.

Espero que te sea de utilidad!

The Oort cloud is c. a roughly spherical region larger than the orbit of Pluto that may contain a trillion comets.

In the field of science, the Oort cloud can be described as a spherical region of stars and comets that are known to surround the Sun. It is also believed that the region of Oort cloud is bigger than Pluto which is no longer considered to be a planet.

The Oort cloud is known to expand from  2,000 to 200,000 Astronomical Unit (AU) around the Sun.

However, it is difficult to observe the Oort cloud through a telescope or the eye.

To learn more about Oort, click here:

https://brainly.com/question/27721268

#SPJ4

True, electrically neutral objects have no positive or negative charges, that is why they are neutral.

Electrically neutral objects have an equal number of protons and electrons, so the total charge on the object is zero. This is why we refer to the object as being ‘neutral’. It has no charge.

In a chemical reaction, protons are transferred between particles, such as atoms or ions. When an atom loses or gains protons, its charge changes, either becoming more negative or more positive.

An atom which has the same number of protons and electrons has a net charge of zero and is neutral.

In an electric field, a neutral object experiences no force due to the absence of electric charge on its surface. When placed in a magnetic field, however, a neutral object still experiences a force due to its electrons.

Electrons have a magnetic moment, so they are affected by the magnetic field, causing the neutral object to move.

Electrically neutral objects have no positive or negative charges, that is why they are neutral.

Their charge is zero, so they are not affected by electric fields, but still experience a force in a magnetic field due to the magnetic moment of their electrons.

to know more about neutral refer here:

https://brainly.com/question/15395418#

#SPJ11

Answer:

h = 0.047 m

Explanation:

It is given that,

Radius of an air bubble is 0.0003 m

The surface tension of water is \(7\times 10^{-2}\ N/m\)

We need to find the the depth at which an air bubble of radius 0.0003 m will  remain in equilibrium in water. Let it is given by h.

The excess pressure inside air bubble Is given by the formula as follows :

\(P=\dfrac{2T}{R}\) .....(1)

T is surface tension

Also, pressure due to a height is given by :

\(P=\rho gh\)

So, equation (1) becomes :

\(\rho g h=\dfrac{2T}{R}\)

So,

\(h=\dfrac{2T}{\rho gR}\)          

\(h=\dfrac{2\times 7\times 10^{-2}}{10^3\times 9.8\times 0.0003}\\\\h=0.047\ m\)

So, the depth is 0.047 m.

A light pulse is a flash. Lasers and related devices have amazing potential for generating light pulses with very specific properties. There are various techniques for using lasers to generate nanosecond, picosecond and even femtosecond pulses.

Light energy is a form of kinetic energy that has the ability to make some kind of light visible to the human eye. Light is defined as a form of electromagnetic radiation emitted by hot objects such as lasers, incandescent bulbs, and the sun. Light contains photons, which are tiny packets of energy.

(a) Energy of photon = planck' constant x fequency

                                    =6.6x10^-34 x4.69 x10^14 J

(b) Energy of 5.0x10^17 photons = 6.6x10^-34 x 4.69x10^14 x5.0x10^17

The energy of a single photon is: hν or = (h/2π)ω where h is Planck's constant: 6.626 x 10-34 Joule seconds. Photons in visible light contain about 10-19 Joules per second in the beam.

Learn more about photons radiation here :https://brainly.com/question/25626374

#SPJ4

The distance from the school will be 229 Km

Velocity is the distance travel in a specific direction per time taken. Velocity is a vector quantity.

Given that at 1:00 p.m. a car, traveling at a constant velocity of 82 km/h toward the west, is 24 km to the west of our school. How far from the school will it be at 3:30 pm ?

The time taken by the car will be = 3:30 - 1:00 = 2:30 = 2.5 hr

Since the speed is constant, V = s/t

82 = s / 2.5

s = 82 x 2.5

s = 205 Km

The distance from the school = 24 + 205 = 229 Km

Therefore, the distance from the school will be 229 Km

Learn more about Velocity here: https://brainly.com/question/24445340

#SPJ1

To find the image distance formed by a concave mirror, we can use the mirror equation:

1/f = 1/di + 1/do

Where:

f is the focal length of the mirror,

di is the image distance,

and do is the object distance.

In this case, the object distance (do) is given as 12.0 cm, and the focal length (f) is given as 15.0 cm. We can rearrange the equation to solve for the image distance (di):

1/di = 1/f - 1/do

Substituting the given values:

1/di = 1/15 - 1/12

To simplify this expression, we need to find a common denominator:

1/di = (12 - 15)/(12 * 15)

1/di = -3/180

Now, we can invert both sides to find di:

di = 180/-3

di = -60 cm

Therefore, the image distance is -60 cm. The negative sign indicates that the image is formed on the same side as the object (in this case, it is a virtual image).

Answer:

60 cm

Explanation:

the U (obj. distance)  =   12  as it is a concave mirror then u  =  -12cm

the f = -15cm

by mirror formula

1/v  +  1/u =  1/f

by substituting values

1/v  +  (1/-12)  =  1/-15

1/v = 1/-15 -(1/-12)

1/v = 1/-15 + 1/12

by taking L C M  60

1/v = -(4/60)  +  5/60

1/v = 1/60

so V = 60 cm

Answer:

The answer is 0km

Explanation:

The final volume of water in the container after increasing the temperature is 203.8 m³.

From the given,

The initial volume of water (Vο) = 200 cm³

Initial temperature = 4°C = 4+273 = 277K

Final temperature = 95°C = 273+95 = 368 K

Volume expansion co-efficient = 210×10⁻⁶(°C)⁻¹

Final volume =?

β = 1/Vο (ΔV/ΔT),  β represents the volume expansion coefficient, ΔV change in volume, ΔT is the change in temperature, and Vο is the initial volume.

ΔV = β×Vο×ΔT

     = 210×10⁻⁶×200×(368-277)

    =  210×10⁻⁶×200×91

ΔV = 3.83 m³

ΔV = final volume - initial volume

final volume = ΔV + 200

                    = 3.82 +200

                    = 203.82 m³

Final volume = 203.82 m³.

Thus, the final volume of the water is 203.82 m³.

To know more about the volume expansion coefficient:

https://brainly.com/question/31456049

#SPJ1

The correct chronological order of events is: 3, 1, 2, 5, 4, which is option c.

The events follow a logical sequence in which Adams first broke his nose (event 3), then his family lost their fortune (event 1), and afterwards, Adams joined the Sierra Club (event 2). Subsequently, Adams taught at the Art Center School of Los Angeles (event 5), and finally, he founded Aperture magazine (event 4).

Therefore, the correct chronological order of events is 3, 1, 2, 5, 4, which corresponds to option c.

To learn more about chronological order of events, here

https://brainly.com/question/13598535

#SPJ4