PHYSICS HIGH SCHOOL

What three forms of kinetic energy can a polyatomic molecule have?

Answers

Answer 1
Answer:  When an object moves, it possesses kinetic energy. There are five types of kinetic energy - radiant, thermal, sound, electrical (light) and mechanical (motion). I would say that the three forms of kinetic energy a polyatomic molecule have are thermal, electrical and mechanical energy. Hope this answers the question. Have a nice day.

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The statement that "The universe is the same everywhere and does not change over time" is known as _____.a. the cosmological principle
b. the perfect cosmological principle
c. the oscillating universe theory
d. the steady state theory

Answers

Answer: b. the perfect cosmological principle

Explanation:

The perfect cosmological principle is the extension of the cosmological principle. It states that the universe is homogeneous. It looks same from everywhere. It will look the same. It will never change over time instead of some of the gross changes occurring in the universe.

The answer is B- Perfect Cosmological Principle

Sorry it took people so long to anser:)

What does it cost, if electricity is $0.0900 per kW ⋅ h ?

Answers

Answer:

50.09

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

Answers

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:

A

Explanation:

A is the answer

What is the magnitude of a vector if the x component is - 12 m and the y component is 21m?290m

17m

24m

580m

Answers

Answer:

v = 24 m

Explanation:

Given that,

The x component of the vector = 12 m

The y component of the vector = 21 m

We need to find the magnitude of a vector. It can be solved as follows :

v=√(12^2+21^2) \n\n=24.18\ m

or

v = 24 m

So, the magnitude of the vector is equal to 24 m.

Which is larger, 65mph or 120kph? As a percentage, how much faster is one than the other?

Answers


120 kilometers is equivalent to 74.565 miles,
or 14.71% greater than 65 miles.
65 mph is 104.6067 kph that means that 120 kph is bigger than 65 mph.
104.6067 kph x 115% = 120.3 kph (rounded)
 120 kph is 115% faster than 65 mph.

A pendulum takes .5 seconds tp complete one cycle. what is the pendulum"s period and frequency?

Answers

You just told us how long the pendulum takes to complete one cycle. That's the definition of the period. Its 1/2 second.

The frequency is the reciprocal of the period. That's 2 per second. Or 2 Hz.
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