Explain how heat transfer is occurring through convection, radiation AND conduction in this picture.

An object moving in a circle is accelerating. Accelerating objects are objects which are changing their velocity - either the speedor the direction. An object undergoing uniform circular motion is moving with a constant speed.

Uniform circular motion occurs when an object moves along a circular path at a constant speed, involving constant centripetal acceleration due to the continuous change in direction, despite the speed being unchanged.

What circular motion occurs when an object is traveling with constant speed in a circle? The answer is uniform circular motion. This phenomenon occurs when an object moves along a circular path with a constant speed. Despite the speed being constant, the direction of the motion changes continuously, leading to a change in velocity. Since velocity is a vector quantity that depends on both speed and direction, its alteration signifies the object is accelerating. This type of acceleration is known as centripetal acceleration, which is always directed towards the center of the circle.

Three critical constants in uniform circular motion include the radius of the circular path, the magnitude of acceleration, and the speed of the object. These constants ensure the motion is uniform, meaning the object covers equal distances along the circle in equal intervals of time. While the speed remains unvaried, the acceleration involved is necessitated by the need to continuously change the direction of the velocity vector.

In summary, uniform circular motion is characterized by constant speed but changing velocity due to continual directional changes. The consistent change in direction necessitates centripetal acceleration, making the motion unique in its dynamics and effects, such as those felt on a roller coaster during rapid turns. Understanding this concept is fundamental in explaining various phenomena in physics and related fields.

Causes of a severe storm are:

High winds

wildfires

hail

A severe thunderstorm includes winds of 58 MPH or greater

It could prevent the key from sinking because the wood would float.

It floats because it weighs less than amount of water it would have to push out of the glass if it sank. Wood, cork, and ice are all less dense than water, and they float; rocks are more dense, so they sink. A key would also be more dense causing it to sink.

Hope this helps,

Davinia.

Attaching the key to a piece of wood could prevent the key from sinking

because the weight of a piece of wood is light when compared to that of the

key.

The wood will however float because the weight of the wood is less than the amount of water that will be displaced.

On the other hand, the key will sink as a result of the weight of the key being

more than the amount of water that will be displaced. Attaching the key to the wood will thereby prevent it from sinking

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Answer:

C. Blue stars

c

Explanation:

For stars in the main sequence, the absolute brightness tends to increase with decreasing surface temperature. Therefore, blue stars, which are hotter, tend to have higher absolute brightness compared to red stars, which are cooler. So, the correct answer is:

C. Blue stars

A star with an absolute brightness of -3 and a surface temperature around 20,000°C would likely be a main sequence star. Main sequence stars are characterized by their stable fusion of hydrogen into helium in their cores, and they cover a wide range of temperatures and absolute brightnesses. The combination of a relatively high absolute brightness and a high surface temperature suggests that this star is likely in the main sequence phase of its life cycle.

C. Blue stars

Answer:

1. A graph is defined as " A Diagram represents a system of connections or interrelations among two or more things by a number of different dots, lines etc".

2. In simple words "Graph is a representation of any object or a physical structure by dots, lines, etc.

To find the acceleration of the skydiver, one needs to subtract the weight of the skydiver from the force of air resistance and divide that net force by the skydiver's mass. This results in an upward acceleration of 7.34 m/s².

In order to find the acceleration of the skydiver, we will apply Newton's Second Law, which states that the net force acting on an object is equal to its mass times its acceleration. This can be represented as F=ma. The net force is the difference between the gravitational force pulling the skydiver down and the air resistance force that acts upwards when she opens the parachute. The weight of the skydiver, which is a force, can be found using the equation F=mg where m is the mass and g is the acceleration due to gravity (approximated as 9.8 m/s²).

In this case, the weight of the skydiver is 70kg × 9.8 m/s² = 686 N. Since the force due to air resistance is greater (1200 N), this means there is a net upward force of 1200N - 686N = 514N. Given net force F=ma, the acceleration a of the skydiver is then F/m = 514N / 70kg = 7.34 m/s² upwards.

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Answer:

C.The car appears to be moving 30 km/hr in the opposite direction of the bus.

Explanation:

There are two reference systems involved in this situation:

- Reference system S: this is the reference system where velocities are measured with respect to the ground. In this reference system, the car is parked, so its velocity is [tex]v=0[/tex]

- Reference system S': this is the reference system moving with the bus. This reference system is moving with a velocity of [tex]v_0 = +30 km/h[/tex] with respect to the reference system S

Calling [tex]v'[/tex] the velocity of the car in the reference system S', we have:

[tex]v=v_0 +v'[/tex]

From which

[tex]v'=v-v_0 = 0-(+30 km/h)=-30 km/h[/tex]

and the negative sign means that a passanger in the bus observes the car moving in the opposite direction.

You are infected by the streptococcus bacterium.  You will suffer from a sore throat, as well as occasional rubus of the gastric musosa, unrtil you shake that thing.  Shake it now, baby !

the answer is ( bacteria)

A sore throat is a bacterial infection with a feeling of sore throat and fear. The sore throat is caused by only a small part of the sore throat.

The unit of magnetic flux is 1 Weber (Wb).

Answer:

The energy depends on the object's mass, height above Earth's surface, and the gravitational acceleration constant.

Explanation:

The potential energy is a relationship as follows:

[tex]E_p = m\cdot g\cdot h[/tex]

where m is the mass of the object (kg), h is the height/altitude of the aboject measured in meters above Earth's surface, and g is the gravitational acceleration, typically take to be 9.8 m/s^2.

Gravitational potential energy is dependent on the object's mass, its height above a reference point, and the gravitational acceleration, encapsulated by the formula ΔPEg = mgh. This energy is associated with the state of separation between the object and the Earth. The difference in gravitational potential energy carries physical significance.

The gravitational potential energy that an object possesses is dependent on multiple factors. Key among these is the mass of the object, the height above the reference point (usually Earth's surface), and the gravitational acceleration (which is approximately 9.8 m/s² near the surface of the Earth). These variables relate based on the equation ΔPEg = mgh, where ΔPEg represents the change in gravitational potential energy, m is the mass, g is the gravitational acceleration, and h is the height increase.

For instance, when we lift an object, work is done against gravity and it becomes potential energy of the object-Earth system. This energy is associated with the state of separation between two objects that attract each other by the gravitational force. Notably, it is the difference in gravitational potential energy that holds physical significance.

To illustrate, consider a roller coaster car at the top of a hill. It has gravitational potential energy due to its elevated position above Earth's surface. As it descends, this stored energy is converted into kinetic energy, or energy of motion, propelling the car downwards.

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recall and recognition

A: holding open a door

Chemical to Electrical

its electrical because it runs on a battery

Answer:

Ohm

Explanation:

The devices that resists the flow of electric current are called resistors and they offer a resistance to the circuit.

1. Volt is the SI unit of voltage or potential difference

2. Coulomb is the SI unit of electric charge.

3. Ohm is the SI unit of resistance.

4. Watt is the SI unit of electric power.

5. Ampere is SI unit of electric current.

Hence, the unit to measure resistance of the circuit is ohm.

The unit of measure for resistance is (B), ohm (Ω). It is named after German physicist Georg Simon Ohm.

The ohm is defined as the resistance between two points in a conductor when a constant potential difference of one volt applied to these points produces a current of one ampere.

The following equation can be used to calculate resistance:

R = V/I

Where:

R = resistance in ohms

V = voltage in volts

I = current in amperes

For example, if a conductor has a resistance of 1 ohm and a voltage of 1 volt is applied to it, then the current through the conductor will be 1 ampere.

The ohm is a unit of the International System of Units (SI). It is one of the seven base units of the SI, and it is used to measure the opposition to the flow of electric current.

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Answer: A ( 0)

      When the force is balanced then the object is accelerating and in the state that will be called "equilibrium".

       When the object is in equilibrium "Net force is zero"

                          Fnet = 0

Answer:

the correct answer is A

Explanation:

because i have this question a usatestprep and i choose C i got it wrong and the answer was A

A negative to a negative charge will make a neutral charge.

Answer:

Any combination of positive and negative charges that are in balance, as well as additional neutral charges.

Explanation:

A particle will have a neutral charge if and only if its components (subparticles) comprise an equal number of positive and negative charges, plus any number of neutral charges.

Answer:North-South

Explanation:

The freely suspended bar magnet will always lie in a north-south direction. Therefore, the swinging bar magnet will come to rest in north -south direction.

A bar magnet is a rectangular piece of object which exhibits permanent magnetic properties.  A bar magnet is made of iron, steel or other ferromagnetic substances.

A bar magnet have two poles, a north pole and a south pole. The two opposite poles of two magnets will attracts each other whereas, two like poles will repel each other.

The south pole of a bar magnet is aligned towards the geographic north pole. When a bar magnet is suspended freely, the magnet will aligns itself so that the north pole is pointing to the geographic north pole. Thus  option d is correct.

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That is might thick wire. I'm not sure I've seen anything with 1/5 inch diameter.

The answer is A.

That is the exact diameter attributed to AWG 4 wire.

Your most likely answer would be D, though, I'm not too sure on it.

However, conduction is present during this process, as well for convection. Convection started up the heating process, and it caused conduction within the pan.

I'm hoping this helps you out.

Answer:

Convection in Step 1 and conduction in Steps 2 and 3

Explanation:

Convection is the fire and the clue word that led me to conduction for steps 2/3 is "touches" it was either Radiation in Step 1 and conduction in Steps 2 and 3 OR Convection in Step 1 and conduction in Steps 2 and 3 and it is not radiation because there is no electromagnetic waves in the flame so its Convection in Step 1 and conduction in Steps 2 and 3, THE LAST ONE, D

Shawn's kinetic energy is calculated using the kinetic energy formula KE =  rac{1}{2}mv^2. With a mass of 45.0 kg and a plausible velocity of 3 m/s, the kinetic energy is 202.5 Joules.

The subject of this question is Physics, as it involves calculating the kinetic energy of a moving object. To find Shawn's kinetic energy as he rides his bike, we use the kinetic energy formula KE =  {1}{2}mv^2, where m is mass and v is velocity.

Firstly, there seems to be an inconsistency in the given information. The velocity mentioned is 70 m/s, but it also states that Shawn rides his bike 1800m in 10.0 minutes. Since 1800 meters in 600 seconds constitutes a velocity of 3 m/s, we will proceed with the more plausible velocity value of 3 m/s.

Therefore, Shawn's kinetic energy can be calculated as follows:

KE =  {1}{2} * 45.6 { kg} * (3 { m/s})^2 = 202.5{ J}

Consequently, Shawn's kinetic energy is 202.5 Joules.

Acceleration = (change in speed) / (time for the change)

Change in speed = (speed at the end) - (speed at the beginning).

Change in speed = (zero) - (50 m/s) = -50 m/s

Time for the change = 4 sec

Acceleration = (-50 m/s) / (4 sec)

Acceleration = -12.5 m/s²

The acceleration of an object which decelerates from an initial velocity of 50 m/s to a stop in 4 seconds is -12.5 m/s².

To calculate the acceleration of an object which comes to a stop from an initial velocity, we can use the following kinematic equation derived from Newton's laws of motion:

v_{f} = v_{i} + a times t

Where v_{f} is the final velocity, v_{i} is the initial velocity, a is the acceleration, and t is the time taken to come to a stop. We're given that the object had an initial velocity of 50 m/s and came to a stop (so v_{f} = 0 m/s) in 4 seconds. Plugging the values into the equation, we get:
0 = 50 + a times 4

To solve for a, we rearrange the equation to isolate a:
a = - (50 / 4)

The negative sign indicates that the acceleration is in the opposite direction of the initial velocity, which makes sense since the object is coming to a stop. Therefore, the acceleration is:
a = -12.5 m/s²

The object's acceleration is -12.5 m/s², which is in the negative direction, indicative of deceleration.

Answer:

1385 N/m^2

Explanation:

The pressure exerted by the brick on the ground is given by:

[tex]p=\frac{F}{A}[/tex]

where F is the weight of the brick and A is the area of its largest face.

The area of the largest face is given by the two largest sides of the brick, therefore:

[tex]A=(0.19 m)(0.095 m)=0.01805 m^2[/tex]

The force exerted by the brick is the weight:

[tex]F=25 N[/tex]

So, the pressure is

[tex]p=\frac{25 N}{0.01805 m^2}=1385 N/m^2[/tex]

The pressure exerted by the brick when resting on its largest face is calculated by dividing the weight of the brick (25 N) by the area of the largest face (0.01805 [tex]m^2[/tex]), resulting in a pressure of 1385 [tex]N/m^2[/tex].

The question seeks to calculate the pressure exerted by a brick on the ground when it is resting on its largest face. To find the pressure, we use the formula Pressure (P) = Force (F) / Area (A). Here, the force is the weight of the brick, which is given as 25 N.

Since pressure is force per unit area, we need to identify the area of the largest face of the brick. The dimensions of the brick are 0.19 m, 0.07 m, and 0.095 m. The largest face would be the one formed by the sides measuring 0.19 m and 0.095 m. Thus, the area is A = 0.19 m × 0.095 m = 0.01805 [tex]m^2[/tex].

To calculate the pressure, we divide the force (weight) by the area:

P = F / A = 25 N / 0.01805 m2 = 1385 [tex]N/m^2[/tex]

Therefore, the pressure exerted on the ground by the brick resting on its largest face is 1385 [tex]N/m^2[/tex].

The gravitational force an object exerts is influenced by its mass and distance. From the options, the moon exerts the most gravitational force because of its significant mass, despite being far away.

The factor that determines the gravitational force exerted by an object is both its mass and the distance from it. The equation for gravitational force is F = G * (m1 * m2) / r^2, where 'G' is the gravitational constant, 'm1' and 'm2' are the masses of the two objects, and 'r' is the distance between their centers.

In the options given: the remote control, the couch, TV actors, and the moon, despite the latter being far off, still, the moon exerts the strongest gravitational force on you. The magnitude of gravitational force exerted by the moon is larger due to its massive size compared to the rest, even though it's far away. The effect is noticeable in the ebb and flow of ocean tides caused by the moon's gravity.

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The formula used to find an object's acceleration is: Acceleration (a) = Change in velocity (Δv) / Time taken (Δt)

In this formula, acceleration is measured in meters per second squared (m/s²), the change in velocity is measured in meters per second (m/s), and the time taken is measured in seconds (s). This formula represents the rate at which an object's velocity changes over time, and it quantifies how quickly the object is speeding up or slowing down.

The SI unit for acceleration is meters per second squared (m/s²). This means that for every second that passes, the velocity of the object changes by the value of the acceleration. For example, if an object has an acceleration of 5 m/s², it means its velocity is increasing or decreasing by 5 meters per second every second.

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That is a Wave Length.

I believe it's called a Scoop. This comes from my extencive knowledge and I ask my freind who writes articales. I could be wrong.

A piece of news published before a rival newspaper can publish it is called a Scoop.

In journalism, a scoop or monopoly is the very originality, importance, surprise, excitement, or secret news reported by a journalist or news agency in front of others. Scoops are important and can be of interest or concern to many people.

Scoop Independent News is New Zealand's oldest and largest independent online news company. Founded in 1999, we specialize in political and business news and claim to be the "beginning of news."

Scoops and examples. explanation. Exclusives or Scoop are news that only one reporter will cover as they are not available to anyone. It is the result of great journalism and is considered the reporter's "score." This term is often used in the media world. Here is an example of a scope:

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Properties that define the light is a wave are

1. Speed : speed of light is 300,000 Km /s, It is most fundamenta property of light to define light is a wave

2. Reflection: Light particles or photons reflect off the particles or masses are continue to travel at the same speed.

3. colour

Answer:

Properties that define the light is a wave are

1. Speed : speed of light is 300,000 Km /s, It is most fundamental property of light to define light is a wave

2. Reflection: Light particles or photons reflect off the particles or masses are continue to travel at the same speed.

3. color

Explanation:

Answer:

The object exerts same amount of force in elastic and inelastic collisions.

Explanation:

The force an object exerts is not different between the two types of collisions. What changes from elastic to inelastic is the amount of energy transformed from kinetic to other type during an inelastic collision.

The process primarily responsible for noodle motion, especially in this scenario, is convection.

In any fluid undergoing uneven heating or cooling, a circulation pattern develops where warmer portions of the fluid rise and cooler portions sink.