When you cook a marshmallow on a metal poker tool over an open flame, energy is transferred. Identify the three different ways thermal energy is transferred in this situation. Be sure to name the specific places or phenomenon in this system where each of the types of thermal energy transfer is occurring and the direction the energy is being transferred (from what to what).

Students watched a cartoon either alone or with others and then rated how funny they found the cartoon to be.

Independent Variable:  student alone or with others

Dependent Variable:   how funny student thought the cartoon was

Answer:

Independent Variable: Watching cartoon alone or with others

Dependent Variable: how funny they found the cartoon to be

Explanation:

A dependent variable is the variable being tested. The change in the value of dependent variable depends on the independent variable.

An independent variable is used to test the effects on dependent variable and its does not depend on any variable.

In the above example the dependent variable is how funny the cartoon was. This is being tested and it is tested by independent variable i.e. Students watching cartoon either alone or with others. So the cartoon is funny or not depends on watching cartoon alone or with friends.

Answer:

 c d

Explanation:

Answer:

The Moon orbits Earth once every 27.3 days and spins on its axis once every 27.3 days. This means that although the Moon is rotating, it always keeps one face toward us. Known as “synchronous rotation,” this is why we only ever see the Moon's nearside from Earth.

I hope this helps you out

The charge on capacitor 2 is 79 μC.
Hence, the charge on capacitor 1 is 79 μC, and the charge on capacitor 2 is 79 μC.

In the figure the battery has a potential difference fV= 10.0 V, and the five capacitors each have a capacitance of 7.90 μF. To find the charge on capacitor 1 and capacitor 2, we can use the formula Q=CV, where Q is the charge, C is the capacitance, and V is the potential difference. Let's first find the equivalent capacitance of the circuit using the formula Ceq = C1 + C2 + C3 + C4 + C5.
Given values are, fV = 10.0 V and C = 7.90 μF.
Therefore, total capacitance,
Ceq = C1 + C2 + C3 + C4 + C5
Ceq = 7.90 μF + 7.90 μF + 7.90 μF + 7.90 μF + 7.90 μF
Ceq = 39.5 μF
Now, the potential difference across each capacitor is fV = 10.0 V.
a. To find the charge on capacitor 1, we can use the formula Q = CV.
Therefore, Q1 = C1V
Q1 = 7.90 μF x 10.0 V
Q1 = 79 μC
Therefore, the charge on capacitor 1 is 79 μC.
b. To find the charge on capacitor 2, we can use the same formula Q = CV.
Therefore, Q2 = C2V
Q2 = 7.90 μF x 10.0 V
Q2 = 79 μC
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The uncertainty in the electron's speed is approximately 3.87 × \(10^4}\) m/s.

According to the Heisenberg uncertainty principle, there is a fundamental limit to the precision with which certain pairs of physical properties, such as position and momentum, can be known simultaneously. The uncertainty principle states that the product of the uncertainties in the measurements of position (Δx) and momentum (Δp) must be greater than or equal to Planck's constant divided by 4π.

Mathematically, the uncertainty principle is expressed as

Δx * Δp \(\geq\) h / (4π)

Here, Δx represents the uncertainty in position, and Δp represents the uncertainty in momentum. However, momentum can be calculated using the equation

momentum (p) = mass (m) * velocity (v)

Rearranging the equation, we have

velocity (v) = momentum (p) / mass (m)

To determine the uncertainty in speed, we need to calculate the uncertainty in velocity. Assuming we are dealing with an electron, we can use the known mass of an electron (m) and the uncertainty principle.

The mass of an electron (m) is approximately 9.10938356 × \(10^{-31}\) kg, and Planck's constant (h) is approximately 6.62607015 × \(10^{-34}\) J·s.

Given the uncertainty in position (Δx) of 12 nm (converted to meters)

Δx = 12 nm = 12 × \(10^{-9}\) m

Using the uncertainty principle equation, we can solve for Δp

Δx * Δp  \(\geq\)  h / (4π)

(12 × \(10^{-9}\)) * Δp  \(\geq\)  (6.62607015  × \(10^{-34}\)) / (4π)

Δp  \(\geq\)  (6.62607015 × \(10^{-34}\)) / (4π * 12 × \(10^{-9}\))

Δp  \(\geq\)  3.527 × \(10^{-26}\) kg·m/s

Now, we can calculate the uncertainty in velocity (Δv) by dividing the uncertainty in momentum (Δp) by the mass of the electron (m):

Δv = Δp / m

Δv = (3.527 × \(10^{-26}\) ) / (9.10938356 × \(10^{-31}\))

Δv = 3.87 × \(10^4}\)  m/s

Therefore, the uncertainty in the electron's speed is approximately 3.87 × \(10^4}\) m/s.

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To solve this problem, we need to use the formula for calculating the current in an AC circuit that contains a resistor and a capacitor in series. The formula is:

I = V/Z

where I is the current, V is the voltage, and Z is the impedance of the circuit, which is given by:

Z = sqrt(R^2 + (1/ωC)^2)

where R is the resistance, C is the capacitance, and ω is the angular frequency, which is equal to 2πf, where f is the frequency in hertz.

Using the given values, we can calculate the current in the circuit as follows:

R = 3.45 kΩ = 3450 Ω

C = 1 μF = 1 × 10^-6 F

f = 50 Hz

ω = 2πf = 2π × 50 = 314.16 rad/s

Z = sqrt((3450)^2 + (1/(314.16 × 1 × 10^-6))^2) = 109.12 Ω

I = V/Z = 115/109.12 = 1.054 A (to three significant figures)

Therefore, the rms current in the circuit is 1.054 A.

To calculate the average power consumed by the circuit, we can use the formula:

Pavg = Irms^2R

where R is the resistance of the circuit.

Pavg = (1.054)^2 × 3450 = 3,809 W (to three significant figures)

Therefore, the average power consumed by the circuit is 3,809 W.

To find the phase angle between the current and the voltage, we can use the formula:

tan(θ) = 1/(ωCR)

θ = tan^-1(1/(314.16 × 1 × 10^-6 × 3450)) = 0.025 radians (to three significant figures)

Therefore, the phase angle between the current and the voltage is 0.025 radians.

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Answer:

the radius of the planet is 10.10

The angular velocity of the rotating tires is 76.27 rad/s.

The angular velocity, ω, of a rotating object is the rate at which it rotates around a chosen center point,

ω = Δθ / Δt (angular displacement over time).

A truck with 0.347-m-radius tires travels at 26.4 m/s. We need to determine the angular velocity of the rotating tires in radians per second. The equation that relates speed and angular velocity is

v = ωr

where,ω = angular velocityv = linear velocity, r = radius of the tire. The angular velocity is given by the equation

ω = v / r

Substitute the given values into the formula;

ω = 26.4 m/s / 0.347 mω = 76.27 rad/s

Hence, the angular velocity of the rotating tires in radians per second of a truck with 0.347-m-radius tires that travels at 26.4 m/s is 76.27 rad/s.

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Range of  v0( 0 in subscript) is 2.67 m/s to 4.67 m/s range for marble peed to land in the hole.

There is no vertical component of velocity here, as per the problem.

h = 2.75 m

But horizontal distance x = v0t (v in subscript)

h = 1/2 gt2(t square)

⇒ t =\(\sqrt{ 2h/g}\)

Putting this in the 1st equation,

we get v0 = x/t =x\(\sqrt{9/2h}\)

Since the hole is 2m away and 1.5m wide ,

x lies between 2m and 3.5m

Lower bound of v0 = 2 × \(\sqrt{9.8/2 * 2.75}\)  = -2.67 m/s

Upper bound of v0 = 3.5 × \(\sqrt{9.8/2 * 2.75}\) = -4.67 m/s

Hence, the range of v0 is 2.67 m/s to 4.67 m/s.

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The ratio of the new volume of an ideal gas to the old volume in an isobaric process starting at 273OC and ending at 546OC is 1.43.

The ratio of the volume of a gas in an isobaric process is proportional to the ratio of its absolute temperature. Therefore, we can use the formula Vnew/Vold = Tnew/Told where V is volume and T is temperature.

We will use the absolute temperatures in Kelvin for this calculation. The initial temperature of the gas is 546 + 273 = 819 K and the final temperature is 273 + 273 = 546 K.

Thus, the ratio of temperatures is Tnew/Told = 546/819 = 0.667. Therefore, the ratio of volumes is Vnew/Vold = Tnew/Told = 0.667*2.14 = 1.43. Therefore, the new volume of the gas is 1.43 times the old volume.

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Answer:

When two objects collide the total momentum before the collision is equal to the total momentum after the collision (in the absence of external forces). This is the law of conservation of momentum. It is true for all collisions.

Explanation:

...

Answer:

When two objects collide the complete momentum before the collision is similar to the complete momentum afterwards the collision (in the absence of outside forces) . This is the law of conservation of momentum . it's accurate for all collisions .

The kinetic energy of the system does not change.

When two horseshoe magnets are placed next to each other, then they either attract or repel each other, depending on the position of their poles. if the poles are opposite they attract, if they are same they repel with other.

In case, if the poles of two horseshoe magnets are attracted to each other, indicating poles are opposite to each other. when the magnets are brought together then the work must be done to oppose the magnetic field between poles. This increases the potential energy of the system.

However, the question is about the kinetic energy of the system, which is related to the motion of the objects in the system. In this case, once the magnets are brought together they attract each other, they will have zero potential. Therefore, the kinetic energy will not change.

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The resistance of the heater is 10.3 ohms.

The power (P) dissipated by the electric space heater is given by the formula P = V²/R, where V is the voltage across the heater and R is the resistance of the heater. In this case, the power is given as 1320 W and the voltage is given as 120 V. So we can rearrange the formula to solve for the resistance: R = V²/P. Substituting the given values, we get R = (120 V)² / 1320 W = 10.3 ohms. Therefore, the resistance of the heater is 10.3 ohm

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Answer:

Atomic clocks are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, to control the wave frequency of television broadcasts, and in global navigation satellite systems such as GPS.

Answer:

  see attached

Explanation:

It will be easier to plot the data if you have grid lines to work with.

In the attached, we had to reverse the order of entries in the table, because the graphing program likes the independent variable listed first.

The force on the cork is the weight of all the water that's directly over it. That's the water in a tall, skinny cylinder that's 2.0m long and has a base area of 2 cm^2.

Find the volume of that cylinder, use the density to find the mass of the water in that volume, then m•g to find the weight of that mass.

Pyramid collision, recommendations are made specifically for each person depending on their age, gender, and amount of physical activity. The consumption of cereals,  milk, veggies, fruit, and oils are the main.

A health impact pyramid: what is it?

The Health Benefit Pyramid is a diagram that shows the many levels of impact that can come from interventions in public health. Attempts to deal with the social determinants that potentially affect your health are at the bottom of the pyramid, suggesting interventions with the highest potential impact. Housing, financial stability, public safety, jobs, education, and the environment are a few examples of these. The broader determinants of health are these.

What are the four primary categories of factors that affect health?

Numerous variables affect health, including These circumstances are referred to as social determinants, which are the socioeconomic factors that influence life expectancy and quality of life and support health. Examples of these factors include accommodation, education, access to food, and transportation. Too frequently, people lack control over their ability to access these resources that influence their health.

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Answer:

\(V=2.4\times 10^2\ \text{m}^3\)

Explanation:

Given that,

The dimensions of a room are 16.40 m long, 4.5 m wide and 3.26 m high.

We need to find the volume of the room.

The room in the shape of cuboid whose volume is given by :

\(V=L\times B\times H\)

L,B,H are length, breadth and height of the room

So,

\(V=16.4\times 4.5\times 3.26\\\\V=240.588\ \text{m}^3\\\\\text{In scientific notation}\\\\V=2.4\times 10^2\ \text{m}^3\)

Hence, the volume of the room is \(2.4\times 10^2\ \text{m}^3\)

yeah i did, hope you understand

Answer:

Answer is a wave with the longest wavelength.

Explanation:

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Answer:

Because the sun's gravity holds it in its orbit

Answer: The executive board of the International Olympic Committee voted yesterday to allow professional tennis, ice hockey and soccer players under the age of 23 to compete in the 1988 Winter and Summer Games.

Answer:

scalar

is the correct answers

Answer:

Scalar

Explanation:

Mph, cubic feet,pounds, and hours are scalar terms

If the galaxies that are being studied are very far away, it follows that the telescope with the biggest aperture possible should be used.

A telescope is a device that is used for the study of the outer space. The telescope can be mounted in an observatory and then used to observe the various galaxies that exist out there in space.

There are various kinds of telescopes that could be used for different kinds of studies that take place in outer space and these telescopes are quite responsible for the breakthroughs that we have so far experienced in the study of the occurrences in outer space.

Thus, if the galaxies that are being studied are very far away, it follows that the telescope with the biggest aperture possible should be used.

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From the core concept introduced by Al-Haytham, modern cameras are created.

To find the answer, we have to know about the Camera Obscura.

Thus, we can conclude that, from the core concept introduced by Al-Haytham, modern cameras are created.

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Answer:   Burning of wood is a chemical change while cutting of wood is a physical change because during burning, new substances are formed. After burning, we cannot get original substance, (i.e. wood) back. Cutting of wood into small pieces is a physical change because no new substance is formed.

Answer:

Average speed = 541.67 mph

Explanation: