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2 years ago

Question 4 (2 points)

Physics

2 answers:

Igoryamba2 years ago

7 0

The answer is a) Teres Major Muscle

aliina [53]2 years ago

4 0

A is the correct answer

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You are interested in space travel and want to learn more facts about space travel. Which would be the best source of informatio

Tpy6a [65]

A book or a professor

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3 years ago

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The diagram is a real world example of the first and second laws of thermodynamics. It shows how thermal energy is used to gener

Dmitriy789 [7]

Answer:

First law: kinetic energy is used to turn an electric generator

Second law: some thermal energy is lost to the environment as it travels through the system

Explanation:

The first law of thermodynamics is known as the law of conservation of energy. It states that energy can neither be created nor destroyed but can only be transferred or changed from one form to another. When thermal energy is used to generate electricity, the kinetic energy of the steam is used to turn the electric generator (thereby producing electrical energy).

The second law of thermodynamics states that energy transfer or transformation leads to an increase in entropy resulting in the loss of energy. This law also states that as energy is transferred or transformed, some is lost in a form that is unusable. When thermal energy is used to generate electricity, some of the thermal energy is lost to the environment as it travels through the system.

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3 years ago

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Violet light (410 nm) and red light (685 nm) pass through a diffraction grating with d = 3.33 x 10-6 m. What is the angular sepa

jeyben [28]

Answer:10.03

Explanation:

right on acellus

7 0

3 years ago

Master of physics needed

Delicious77 [7]

Hey JayDilla, I get 1/3. Here's how:
Kinetic energy due to linear motion is:
$E_{linear}= \frac{1}{2}mv^2$
where
$v=r \omega$
giving
$E_{linear}= \frac{1}{2}mr^2 \omega ^2$

The rotational part requires the moment of inertia of a solid cylinder
$I_{cyl} = \frac{1}{2}mr^2$
Then the rotational kinetic energy is
$E_{rot}= \frac{1}{2}I \omega ^2= \frac{1}{4}mr^2 \omega ^2$
Adding the two types of energy and factoring out common terms gives
$\frac{1}{2}mr^2 \omega ^2(1+ \frac{1}{2})$
Here the "1" in the parenthesis is due to linear motion and the "1/2" is due to the rotational part. Since this gives a total of 3/2 altogether, and the rotational part is due to a third of this (1/2), I say it's 1/3.

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3 years ago

Which electromagnetic waves have the shortest wavelengths and highest frequencies?

never [62]

<span>Which electromagnetic waves have the shortest wavelengths and highest frequencies?

Gamma rays </span>

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3 years ago