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zimovet [89]
3 years ago
8

Explain how we can deduce the temperature of a star by determining its color.

Physics
1 answer:
ValentinkaMS [17]3 years ago
7 0

Answer: Stars are bright and have the ability to emit lights of various wavelength. The color of a star plays a significant role. It helps us in determining its temperature. It ranges from reddish color to a bluish-white color. A red color star indicates that the star is of low temperature, whereas   a bluish-white star indicates that the star is of high temperature.

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Find the kinetic energy of a 0.1-kilogram toy truck moving at the speed of 1.1 meters per second.
Viktor [21]

Answer:

0.061 J

Explanation:

The kinetic energy of an object is given by

K=\frac{1}{2}mv^2

where

m is the mass of the object

v is its speed

For the toy truck in the problem, we have

m = 0.1 kg is its mass

v = 1.1 m/s is its speed

Putting the numbers into the equation, we find

K=\frac{1}{2}(0.1 kg)(1.1 m/s)^2=0.061 J

6 0
4 years ago
The use of a beat or a rhythm to remember something is
Mamont248 [21]
<span>The answer is Music Mnemonics. Mnemonic is originally coming from the Ancient Greek word means “memory”. It is the study and development of systems for improving and assisting the memory. Mnemonic techniques are more specific memory aids. Music Mnemonic is a way we used to remember song lyrics and rhythmic movement.</span>
5 0
3 years ago
Read 2 more answers
Two identical automobiles are
Phantasy [73]

Answer:

i think that it is b but I could be wrong

3 0
3 years ago
What is the frequency of motion of a 0.50 m long pendulum?
IgorC [24]
Complicated 2-step process. 

<span>1. Write down the formula for "frequency of a pendulum" from your textbook. </span>

<span>f = (1/2pi) * sqrt(g/L) </span>

<span>2. Plug in g and L.

I hope this can help!</span>
3 0
3 years ago
Read 2 more answers
Why do we use other bonding theories in addition to the lewis model?
Setler [38]

Full Question:

Why do we use other bonding theories in addition to the lewis model?

a) Lewis model is not suitable for all molecules or ions. b) Lewis model cannot predict all of the properties of a molecule or ion. c) Lewis model is too complicated.

Answer:

b) Lewis model cannot predict all of the properties of a molecule or ion.

Explanation:

Lewis structures, also called electron-dot structures or electron-dot diagrams, are diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that may exist in the molecule.

Lweis  model does not explain the geometry of molecules, how the bonds form, or how the electrons are shared between the atoms hence the need to use other bonding theories.

8 0
4 years ago
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