A microwave oven operates on 1500 W of power and is used for 30 minutes. How
much electrical energy, in kW. h, is used by the microwave oven?

Answer:

Presión = 11111,11 N/m

Explanation:

Dados los siguientes datos;

Diámetro = 1,5 cm a metros = 1,5 / 100 = 0,015 m

Fuerza = 2N

Para encontrar la presión;

En primer lugar, determinaríamos el área del círculo usando la fórmula;

Área del círculo = πr²

Radio = diámetro/2 = 0.015/2 = 0.0075 m

Área de la jeringa = 3.142 * 0.0075²

Área de la jeringa = 3.142 * 0.00005625

Área de la jeringa = 0.00018 metros

Ahora, podemos encontrar la presión usando la fórmula;

Presión = fuerza/área

Presión = 2/0.00018

Presión = 11111,11 N/m

Answer:

Solar water heaters are devices that use energy from the sun to heat water. ... This metal surface, placed in contact with the water, will heat the water. Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color. The black metal plate is called a collector.

The second option is the correct answer to the question. The complete question is attached

In the beginning, the cart started from rest and moved to the right. The movement represents positive acceleration

In the middle, there is no change in velocity hence no acceleration. This means that the value of acceleration is zero

A the end, the cart had a negative acceleration which brings the cart to rest.

Acceleration refers to the change in velocity with time. Usually when there is no change in velocity acceleration is zero. The value can also be positive or negative depending on the velocity.

When there is an increase in velocity, the result is positive acceleration but in a situation when there is a decrease in velocity the result is negative acceleration. At the peak pf negative acceleration the result is to put the object accelerating to a stop.

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Answer:

An object orbiting the sun in a circle can be said to be. Always accelerating. :)

The three product which can be potentially fail considering Load Strength graph and precautionary measure to prevent failure are as below;

Ball Pen:

1. Ink Leakage: One potential failure of a ball pen is ink leakage. This can occur due to poor sealing between the ink reservoir and the ballpoint mechanism. Ink leakage can result in messy hands, stained documents, and reduced functionality of the pen. To prevent this failure, manufacturers can improve the quality control process to ensure proper sealing and use high-quality materials for the pen's components.

2. Ballpoint Jamming: Another failure is ballpoint jamming, where the ball gets stuck and prevents smooth writing. This can be caused by a buildup of dried ink or debris inside the pen's mechanism. To prevent ballpoint jamming, regular cleaning and maintenance of the pen can be recommended. Additionally, manufacturers can design the pen with features that facilitate easy cleaning or provide instructions on how to clear any blockages.

3. Weak Barrel Construction: The barrel of the pen may also be prone to failure if it is weak or brittle. Excessive pressure or rough handling can lead to cracks or breakage, rendering the pen unusable. To prevent this, manufacturers can use durable materials for the pen barrel, such as sturdy plastics or reinforced metal, and perform quality checks to ensure structural integrity.

Room Key:

1. Keycard Malfunction: A potential failure of a room key is a malfunction in its electronic components. This can result in the keycard being unreadable by the door lock system, preventing access to the room. To prevent this failure, regular maintenance and replacement of keycard readers can be implemented. Additionally, guests should be advised to keep their keycards away from magnets and electronic devices that can interfere with the card's functionality.

2. Magnetic Strip Damage: Another failure can occur if the magnetic strip on the keycard gets damaged or demagnetized. This can happen due to exposure to magnetic fields or physical damage. To prevent this failure, keycards can be made more durable with protective coatings or alternative technologies such as RFID. Guests should also be educated on proper handling and storage of keycards to avoid damage.

3. Battery Drain: Some room keys use batteries to power their electronic components. A failure can occur if the battery drains, leading to an inactive keycard. To prevent this, low-power consumption designs can be implemented, and regular battery checks or replacements can be carried out by hotel staff. Guests should be informed about the importance of returning the keycard to the front desk for recycling or proper disposal to ensure the battery is replaced as needed.

Blender:

1. Motor Burnout: One potential failure of a blender is motor burnout due to prolonged use or overloading. Continuous operation at high speeds or attempting to blend hard or frozen ingredients beyond the blender's capacity can cause the motor to overheat and fail. To prevent motor burnout, manufacturers can provide clear guidelines on the maximum load capacity and recommended usage durations. Automatic thermal protection mechanisms can also be incorporated to shut off the blender if it detects excessive heat.

2. Blade Jamming: Another failure can occur if food particles or ingredients get jammed between the blender's blades, preventing them from spinning freely. This can happen if the blender is not properly cleaned or if ingredients are not adequately prepared before blending. To prevent blade jamming, users should be advised to clean the blender thoroughly after each use and ensure that ingredients are cut into manageable sizes. Manufacturers can also design blades with accessible mechanisms for easy cleaning or provide cleaning tools.

3. Leakage: A failure in a blender can also manifest as leakage. This can happen if the blender jar or its sealing components are damaged or improperly assembled. Liquid or food can leak out during blending, resulting in a messy and potentially unsafe situation. To prevent leakage, manufacturers should ensure proper sealing mechanisms and use high-quality materials for the blender jar and lid. Regular inspection of the sealing components can be advised,

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A worked example of a similar question. Resolution of Forces:F1 = 20kNF2 = 30kNF3 = 40kN

To determine the resultant force and specify where it acts on the beam measured from a, given the following diagram, the following steps must be followed; Resolve all the forces into their horizontal and vertical components.

Mark all the forces as tensile or compressive forces.

To determine the resultant force, calculate the horizontal and vertical forces separately using the formula: Fx= ∑Fx and Fy = ∑FyCalculate the magnitude of the resultant force using the Pythagorean theorem: √(Fx^2 + Fy^2)Specify where the resultant force acts on the beam measured from a by calculating the moment of the force about the point a.Finally, draw a free-body diagram of the beam, indicating the point of action of the resultant force

.Here is a worked example of a similar question. Resolution of Forces:F1 = 20kNF2 = 30kNF3 = 40kN

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Answer:

my mind cant comprehend a shing word u just said

Explanation:

The probes collect data, they capture the movement in space, therefore, spacecraft that carry instruments to collect data about objects in space are called probes, So the given statement is correct.

Any conductor that is placed into a plasma and gathers current is a probe. Measurements of the current on the probe as a function of the bias potential given to the probe can be used to identify a plasma's properties.

Such probes affect their surroundings while directly detecting electron and ion flows in the plasma. Any conductive material (wire, foil, chamber walls, etc.) can serve as a plasma probe; nevertheless, precise control over the probe's size, shape, and substance is necessary to achieve detectable plasma levels. Astronauts are not present aboard probes. Scientists can analyze the data the probes relay back to Earth. Sputnik 1 was the first spacecraft to launch.

Because probes probably collect data, they capture the movement in space, therefore, spacecraft that carry instruments to collect data about objects in space are called probes.

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Answer:

Explained below

Explanation:

A) Newton's first law of motion states that an object will remain at rest or continue in its current state of motion except it is acted upon by another force.

Now using this law, when you jump off the ground, the earth will move a tiny bit and accelerate due to the force applied by the jumping.

B) Newton's 2nd law states that the acceleration of a system is directly proportional to the net external force acting on that system, is in the same direction with it and also inversely proportional to the mass.

In this case, when one jumps, an external force is exerted on the earth and we are told it is directly proportional to the acceleration of the system which in this case it's the earth, then it means that there is some motion by the earth even though you didn't see it move.

C) Newton's third law of motion states that to every action, there is an equal and opposite reaction.

In this case the motion of the jumper will lead to an equal and opposite reaction of the earth.

To find the pressure caused by piston A on the fluid, we can use the formula:

Pressure = Force / Area

Given that the force exerted by piston A is 1000 N, and the area of each of the four pistons that hold up the car is 0.02 m^2, we can calculate the pressure as:

Pressure = 1000 N / (4 x 0.02 m^2)

Pressure = 25000 N/m^2

So the pressure caused by piston A on the fluid is 25000 N/m^2

Answer:

C

Explanation:

Prevents further damage to the network cable.

The correct option is option 3.

To find the angular acceleration of the tire, we can use the formula:

angular acceleration (α) = (final angular speed - initial angular speed) / time

Given:

Number of revolutions (n) = 4.73 rev

Time (t) = 1.78 s

First, let's convert the number of revolutions to radians:

Angle (θ) = n * 2π

Substituting the values:

θ = (4.73 rev) * (2π rad/rev)

Now, we can calculate the initial angular speed (ω_initial) using the formula:

ω_initial = 0 rad/s (as the tire starts from rest)

Next, let's calculate the final angular speed (ω_final) using the formula:

ω_final = θ / t

Now, we can calculate the angular acceleration (α) using the formula:

α = (ω_final - ω_initial) / t

Substituting the values:

α = (ω_final - 0 rad/s) / t

Now, let's calculate the angular acceleration:

α = ω_final / t

Substituting the values:

α = (θ / t) / t

Calculating the result:

α ≈ 31.14749 rad/s²

Therefore, the angular acceleration of the tire is approximately 31.14749 rad/s².

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Answer:

B

Explanation:

Displacement is the distance from the start point to the endpoint, displacement disregard the path taken or the amount traveled.

if you start at point A, then go to point B, and back to point A, the displacement is zero because you started and ended at the same point.

for this question, pretend you started at point A, went east 20 km to point B, and then west 8 km to point C, your displacement is 12 km. 12 km is the distance between point A and point C.

Answer:

Explanation:

roles of nutrient in our body​

Answer:

velocity is the rate of change of distance moved with a time in a specific direction. While speed is the rate if distance with time in no specific direction

The magnitude of force ( 50 N ) which satellite exerts on her but in opposite direction.

We will apply the Newton's Third Law of motion for solving this problem, which says that, "To each activity, there is an equivalent and inverse response". And that implies if any article (say object 1) apply some power on another article (say object 2), then, at that point, the item 2 will likewise apply same greatness of power on object 1, yet it will be in inverse heading.

So, we have amount of force exerted by a 65-kg astronaut on satellite which is 50N.

To balance that force, satellite will apply same amount of force on astronaut but in just opposite direction .

F' = - F

or F' = - 50 N.

Here, negative sign shows that the direction of force is opposite.

Hence, required value of force is 50N.

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Answer:

11.11 C

Explanation:

(52 f-32) * 5/9= 11.11

Answer:

sheeeeshhh

Explanation:

8.5 i took test

"House of Ashes" is a video game that follows a group of soldiers who are trapped underground and must fight for survival against supernatural creatures.

Nick is one of the characters in the game, and keeping him alive can be challenging. Here are some tips to help you keep Nick alive in "House of Ashes":

Pay attention to Quick Time Events (QTEs): During certain action sequences in the game, you will need to react quickly to avoid danger.

Keep an eye out for QTE prompts on the screen and respond quickly to keep Nick and the other characters alive.

Choose dialogue options carefully: The choices you make during dialogue scenes can impact how the story unfolds.

Choose dialogue options that align with Nick's personality and try to avoid antagonizing other characters.

Use cover to avoid enemy attacks: When you encounter enemies, use cover to avoid their attacks. Stay behind objects like pillars or walls and peek out to take shots at the enemy.

This can help you avoid taking damage and keep Nick alive.

Work with the other characters: "House of Ashes" is a cooperative game, and you will need to work with the other characters to survive. Pay attention to their needs and help them when necessary.

This can help build trust and improve your chances of keeping Nick alive.

Be cautious when exploring: When you are exploring the underground tunnels, be cautious and watch out for traps and other dangers.

Move slowly and carefully to avoid setting off traps or attracting the attention of enemies.

By following these tips, you can improve your chances of keeping Nick alive in "House of Ashes".

However, keep in mind that the game has multiple possible endings, and your choices will impact the outcome of the story.

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The current running through the solenoid is 11.78 A.

The solenoid is a long, thin coil of wire that has been wrapped around a cylindrical shape. A solenoid has a magnetic field that can be produced when a current runs through it. When you wrap the wire around a cylindrical core, the magnetic field becomes stronger because the magnetic field lines are concentrated in the center of the solenoid. You are required to calculate the current running through the solenoid that has a 350-turn and is 10 cm long and 1 cm in radius with a steady current running through it, with a measured magnetic field of 0.075 T.

Number of turns in the solenoid, N = 350, Length of solenoid, L = 10 cm = 0.1 m, Radius of solenoid, r = 1 cm = 0.01 m, Magnetic field in the interior of the solenoid, B = 0.075 T. FormulaThe magnetic field inside the solenoid is given by the relation

B = μ₀ * N * I / L

where μ₀ is the permeability of free space,

μ₀ = 4π x 10⁻⁷ T m/I

Arranging the formula for current, we get

I = B * L / μ₀ * N

Substitute the given values in the formula,

I = 0.075 T * 0.1 m / 4π x 10⁻⁷ T m/I

Arrange and simplify the above equation,

I = 0.075 T * 0.1 m / 4π x 10⁻⁷ T m/I = 11.78 A

Therefore, the current running through the solenoid is 11.78 A.

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Answer:

it is 4m

Explanation:

The net force on particle q2 can be calculated by finding the net electric force acting on it. The net electric force acting on a particle is the vector sum of the forces exerted by all the other charges on it.

The electric force between two charges q1 and q2 is given by Coulomb's law: F = k * (q1 * q2)/r^2, where k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.

The force on particle q2 due to q1 will be:

F1 = k * (q1 * q2) / (0.980m)^2

The force on particle q2 due to q3 will be:

F2 = k * (q2 * q3) / (0.750m)^2

The net force acting on q2 will be the vector sum of F1 and F2.

Keep in mind, q1 and q3 have opposite charges, so they attract each other, while q2 has the same charge as q1, so they repel each other.

Note: The unit of charge is Coulomb (C), but in this problem you are given the charges in microCoulomb (uC) so you need to convert it to Coulomb.

To find the total charge on the rod, you need to integrate the charge density function over the length of the rod, considering the absolute value sign.

To find the total charge on the rod, follow these steps:
1. Identify the charge density function (λ(x)) along the rod's length.
2. Consider the absolute value of the charge density function, i.e., |λ(x)|, to ensure you account for positive and negative charges.
3. Set up the integration with respect to x over the entire length of the rod, from x=a to x=b: ∫[a,b] |λ(x)| dx.
4. Evaluate the integral using appropriate integration techniques or tools, such as substitution, integration by parts, or numerical methods.
5. The result of the integral is the total charge on the rod.

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Answer:

100kgm/s

Step by step solution:

mass(m) = 5kg

Initial velocity (u) = 0

i.e u = 0 for free fall

Final velocity (v) = 20m/s

Momentum = m(v - u)

= 5(20 - 0)

= 5(20) = 100kgm/s.

Answer:

\(\boxed {\boxed {\sf 100 \ kg*m/s}}\)

Explanation:

Momentum can be found using the following formula.

\(p=mv\)

where p is the momentum, m is the mass, and v is the velocity.

1. Define Variables

The mass is 5 kilograms and the velocity is 20 meters per second.

\(m= 5 \ kg \\v= 20 \ m/s\)

2. Calculate Momentum

Substitute the values into the formula.

\(p= 5 \ kg * 20 \ m/s\)

Multiply.

\(p= 100 \ kg*m/s\)

The momentum of the ball is 100 kilograms meters per second.

Terminal velocity of the package is 5.16 m/s

When the object's drag force is equal to the gravitational force then it experiences zero acceleration and so the velocity remains constant. Such constant velocity is called as terminal velocity.

Drag force is a kind of frictional force that opposes the flow of motion.

Mathematically drag force F = \(\frac{1}{2}\)ρA\(v^{2}\)

ρ = density of the package = 1.2 kg/\(m^{3}\)

A = 25 \(m^{2}\)

v = terminal speed

Also Force is the product of mass and acceleration

Mathematically F = ma

where

m = 44 kg

a = 10 m/\(s^{2}\)

Therefore, F = 44 * 10 = 400 N

Putting value of F in the drag force equation we get,

400 =  \(\frac{1}{2}\)ρA\(v^{2}\)

400 =  \(\frac{1}{2}\) * 1.2 * 25 * \(v^{2}\)

\(v^{2} = \frac{400*2}{1.2 * 25}\)

\(v^{2} = \frac{800}{30}\)

v = \(\sqrt{26.66}\)

v = 5.16 m/s

The terminal speed of the package if the parachute has an area of 25 \(m^{2}\) is 5.16 m/s.

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Answer:

\(m = \frac{-2}{3}\)

Explanation:

Given

Points: (1,-1) and (-5,3)

Required

Determine the slope

The slope of a line is represented by m and is calculated as thus;

\(m = \frac{y_1 - y_2}{x_1 - x_2}\)

Where

\((x_1,y_1) = (1,-1)\)

\((x_2,y_2) = (-5,3)\)

Substitute these values in the given formula

\(m = \frac{-1 - 3}{1 - (-5)}\)

\(m = \frac{-1 - 3}{1 +5}\)

\(m = \frac{-4}{6}\)

Simplify fraction

\(m = \frac{-2}{3}\)

Hence, the slope of the line is \(m = \frac{-2}{3}\)

Answer:

The answer is 1/3

Explanation:

Change in y/Change in x

-2/-6=1/3

Answer:

.

The common velocity of the two bodies after the collision is 2.7 m/s.

This can be calculated using the equation of conservation of momentum:

m1v1 + m2v2 = (m1 + m2)v

where m1 is the mass of the first body (12 kg), v1 is the velocity of the first body (4.2 m/s), m2 is the mass of the second body (18 kg), v2 is the velocity of the second body (0 m/s), and v is the common velocity of the two bodies after the collision.

Substituting the given values into the equation, we get:

12(4.2) + 18(0) = (12 + 18)v

Solving for v, we get:

v = 2.7 m/s

The acceleration of this car is zero. Because Acceleration is the change of velocity with respect to time and since car maintains a constant velocity, there is no acceleration.

The rate at which a velocity changes over time in both direction and speed. A point or object going straight ahead is accelerated when it accelerates or decelerates. Even if the speed is constant, motion on a circle accelerates because the direction is always shifting.

Acceleration is the rate at which speed changes, while speed is the ratio of the distance in a time period. The metric process utilizes meters per second (m/s) as the unit of speed and meters per second squared (m/s²) as the measure of acceleration. Velocity is a scalar quantity, whereas speed is indeed a scalar quantity.

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Here,

Resistance = 11.7

Ampere = 0.3

Voltage = ?

Now,

R = V/A

11.7 = V/0.3

11.7*0.3 =V

V = 3.51

I hope it's help you...

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The coefficient of static friction is usually larger than the coefficient of kinetic friction, meaning it takes more force to get an object moving than to keep it moving.

For most surfaces, the coefficient of static friction is greater than the coefficient of kinetic friction.

The coefficient of static friction is the amount of force required to move an object that is initially at rest relative to a surface. This force is usually greater than the force required to keep the object moving, which is the coefficient of kinetic friction. This is because the static force must overcome the resistance of the surface, while the kinetic force is used to maintain the object's relative motion. This is why it takes more effort to start an object moving than to keep it going.

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Answer: The first one

Explanation: My best guess is in the pic attached. Hope this helps.

Answer:

b

e

Explanation:

The barycenter, which is the shared point around which the Earth and Moon orbit the Sun, is located a certain distance from the Earth's center. In this context, the question asks for the distance between the barycenter and the Earth's center.

The barycenter is the center of mass between two celestial bodies, in this case, the Earth and the Moon. It is determined by the relative masses and distances of the two bodies. In the Earth-Moon system, the barycenter is located within the Earth because the Earth is significantly more massive than the Moon. Due to this difference in mass, the barycenter is closer to the center of the more massive body, which is the Earth. However, it is important to note that the barycenter is not fixed and can move depending on various factors, such as the positions of the Earth, Moon, and Sun.

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