PHYSICS HIGH SCHOOL

Ixchelt burns her tongue when she takes a sip of hot coffee from her mug. Which part of this example represents heat?

Answers

Answer 1

Answer:

This question comes along with four answer choices:

a) the thermal energy moving from the coffee to her tongue

b) the thermal energy moving from her tongue to the coffee

c) her coffee

d) her tongue

Answer: a) the thermal energy moving from the coffee to her tongue.

Explanation:

Heat, heat energy and thermal energy are terms to refer the same thing.

Heat is the kinetic energy of the molecules or particles in a substance wich is transferred from hot substances to cool substances.

In the example, the coffe is hot and Ixchelt's tongue is cool, so the heat is the thermal energy transferred from the hot coffe to Ixtchel's tongue.

The thermal energy (heat) always flows from the hot to the cold, never the other way around.

Answer 2

Answer:

Answer:

Explanation:

A is the answer

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what will be the acceleration due to gravity at up planet whose mass is 8 times the mass of the earth and whose radius is twice that of the earth? g=10

Answers

Hope it cleared your doubt.

A radio wave has a frequency of 5.5 × 104 hertz and travels at a speed of 3.0 × 108 meters/second. what is its wavelength? a. 5.5 × 104 meters b. 5.0 × 103 meters c. 5.5 × 103 meters d. 3.0 × 108 meters

Answers

The wavelength of the radio wave is 5.5 × 10³ m. If the frequency of the wave is 5.5 × 10⁴ hertz and the speed of the wave is 3.0 × 10⁸ m/sec.

The speed(v) of a wave is the product of wavelength(λ) and the frequency(η). We can understand this relation by the definition of the speed, which is the distance travelled by the object in unit time. The unit of distance is meter, also the unit of the wavelength is meter. On the other hand the unit of frequency is sec⁻¹. So,

Speed of a wave(v) = wavelength(λ) × Frequency(η)

Wavelength(λ) = speed of the wave(v)/Frequency(η)

Wavelength(λ) = (3.0 × 10⁸)/(5.5 × 10⁴)

Wavelength(λ) = 5.5 × 10³ m

To know more about wavelength, here

brainly.com/question/13533093

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Is it possible to fly from Norway to USA across the North Pole?

Answers

Sure. The Earth is a sphere (ball-shaped), so you can follow practically
any route you want from one place to another. You could even fly from
New York to Chicago by way of the north pole.

If you want to draw a smooth curve from Oslo through the north pole to
a point in the USA, that's perfectly possible. But it's not the shortest way
to travel between those two points.

The chemical name for bleach is sodium hypochlorite (NaClO). It is created by a chemical reaction between sodium (Na), chlorine (Cl), and oxygen (O). Which substances are the reactants?

Answers

O + Na + Cl = NaClO

Reactants :

O -> Oxygen

Na -> Sodium

Cl-> Chlorine

hope this helps!

Answer:

The sodium (Na), chlorine (CI), and oxygen (O), are the reactants.

Explanation:

When you turn on the light switch in a room, you have completed the _____. open circuit series circuit parallel circuit switch circuit

Answers

A.) When you turn on the light switch in a room, you have completed the "Open Circuit"

Hope this helps!

open circuit...by flipping on the switch you close the circuit and allow electrons to flow to the light bulb

If the activation energy for a given compound is found to be 103 kJ/mol, with a frequency factor of 4.0 × 1013 s-1, what is the rate constant for this reaction at 398 K?

Answers

Answer: The Rate constant is 1.209

Explanation:

in the attachment

Explanation:

Below is an attachment containing the solution.

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