PHYSICS HIGH SCHOOL

Which of the following is a chemical property of a mineral?A Hardness
B Luster
C Atomic structure
D Color

Answers

Answer 1
Answer:

Hardness, color , and luster.

But since you can pick one, I would say hardness
Answer 2
Answer:

Final answer:

The chemical property of a mineral is its atomic structure, which influences its chemical behavior.

Explanation:

The correct answer is C Atomic structure. A chemical property of a mineral refers to the behavior of a mineral when it undergoes a chemical change or reaction.

Atomic structure is a chemical property because it determines the way in which the atoms of a mineral are arranged and bonded together, which influences its overall chemical behavior.

For example, the atomic structure of a mineral can determine its reactivity with acids or its ability to conduct electricity.The chemical property of a mineral could be derived from its atomic structure.

The atomic structure, which includes the number of protons, neutrons, and electrons in an atom of the element, determines the behavior of the element in a chemical reaction. Hardness, luster, and color are considered physical properties of the mineral, not chemical. Example, quartz (a common mineral) has a specific atomic structure that makes it react to acid differently than a mineral like calcite.

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When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this? nuclear radiant thermal chemical
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What is the wavelength of a sound wave that has a speed of 327 m/s and a frequency of 185 hz?

If you are over-driving your headlights and you see an object ahead, you will_____. be given the right-of-way from other vehicles not be able to stop in time to miss the object need to execute a high-speed U-turn be able to stop, but may graze the object.

Answers

Answer: not be able to stop in time to miss the object

Explanation:

The phrase "Over-driving your headlights" means that a person is driving at such a speed that the vehicle's stopping distance is greater than the maximum viewable distance with the headlights on.

When this occurs, it will be impossible for the vehicle to stop moving in time to avoid an object viewed by the driver in the range of his headlights.

This is a dangerous driving practice and can be avoided by driving at reduced speeds.

Final answer:

Over-driving your headlights implies a situation where you are driving so fast that you won't be able to stop within the area illuminated by your headlights. Therefore, if you see an object in your path under such circumstances, you are likely not going to be able to stop in time to avoid hitting it. Headlights' range is usually 350 feet, and driving at a speed that requires a stopping distance greater than 350 feet is considered over-driving your headlights.

Explanation:

The phrase 'over-driving your headlights' refers to a situation where a driver is traveling at such a speed that their stopping distance is further than the distance illuminated by their headlights. Thus, if an object is within your path, you won't have enough time to stop your vehicle before hitting it, especially if you're speeding.

On most roads, the farthest your headlights can help you see ahead is around 350 feet. If you're driving faster than a speed that permits you to stop within these 350 feet, you're said to be 'over-driving' your headlights. If you're over-driving your headlights, and you see an object ahead then you will most likely not be able to stop in time to miss the object. This is because your vehicle's stopping distance will be greater than your visual distance, which is dependent on the capabilities of your headlights.

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The total energy of a 0.050 kg object travelling at 0.70 c is:A) 2.10 × 107 J

B) 3.06 × 107 J

C) 2.46 × 1015 J

D) 6.30 × 1015 J

E) 8.82 × 1015 J

Answers

Answer:

1.1025×10^15Joules

No correct option

Explanation:

The type of energy possessed by the object is kinetic energy. Kinetic energy is the energy due to virtue of an object motion.

KE = 1/2MV² where;

M is the mass of the car = 0.05kg

V is the velocity of the car

Since the car is traveling at 0.7c (c is the speed of light)

speed = 0.7c { 0.7(3×10^8)}

Speed = 2.1×10^8

Substituting this values in the formula given we have;

KE = 1/2×0.05×(2.1×10^8)²

KE = 1.1025×10^15Joules

No correct option.
What is the unit c denotes here

A Newton is 1 kgm/s^2 . Is this a fundamental unit or a derived unit?

Answers

The kilogram, the meter, and the second are the fundamental units.
When you mash them together in just the right way, the 'newton' is
derived from them.

Which of the following are pure substances?a. solutions
b. compounds
c. homogeneous mixtures
d. colloids

Answers

The pure substances are c. homogenous mixtures
I think it's C hope this help

The wavelength of some violet light is 420.0 nm. what is the frequency of this violet light?

Answers

The equation relating wavelength and frequency of light is:
v = fλ; where v is the wave's speed, f is its frequency and λ is the wavelength.
The speed of violet light will be the same as for any elecromagnetic radiation, that is,
3 x 10⁸ m/s
3 x 10⁸ = f(420 x 10⁻⁹)
f = 7.14 x 10¹⁴ Hz

The frequency of light for which the wavelength is 420\,{\text{nm}}is \boxed{7.14 * {{10}^(14)}\,{\text{Hz}}}.

Further explanation:

The frequency is a measure of number of wave’s that passes through a fixed point or place in a given time interval. The S.I unit of frequency is Hertz \left( {{\text{Hz}}} \right).

Wavelength is defined as the distance between two successive crests or troughs of a travelling wave.  

Examples of waves are sound wave, light wave, mechanical waves, surface waves etc.

Given:

The wavelength of the light used is 420\,{\text{nm}}.

The speed of the light is 3 * {10^8}\,{{\text{m}} \mathord{\left/ {\vphantom {{\text{m}} {\text{s}}}} \right. \kern-\nulldelimiterspace} {\text{s}}}.

Concept:

Light is an electromagnetic wave which carries energy in the form of electric field and magnetic field. The speed of light in vacuum is 3 * {10^8}\,{{\text{m}} \mathord{\left/ {\vphantom {{\text{m}} {\text{s}}}} \right. \kern-\nulldelimiterspace} {\text{s}}}.

The speed of light can be expressed in terms of wavelength of the light and the frequency of the light.

The speed of light is:

c = f \cdot \lambda

Rearrange the above expression.

\boxed{f=(c)/(\lambda )}                          …… (1)

Here, f is the frequency of the light, c is the speed of the light in vacuum and \lambda is the wavelength of the light.

Substitute 3 * {10^8}\,{{\text{m}} \mathord{\left/ {\vphantom {{\text{m}} {\text{s}}}} \right. \kern-\nulldelimiterspace} {\text{s}}} for c and 420 * {10^( - 9)}\,{\text{m}} for \lambda in equation (1).

\begin{aligned}f&=\frac{{3*{{10}^8}\,{{\text{m}}\mathord{\left/ {\vphantom {{\text{m}} {\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}}}{{420 * {{10}^(-9)}\,{\text{m}}}}\n&=7.14* {10^(14)}\,{\text{Hz}} \n \end{aligned}

Thus, the frequency of light for which the wavelength is 420\,{\text{nm}}is \boxed{7.14 * {{10}^(14)}\,{\text{Hz}}}.

Learn More:

1. What is the threshold frequency ν0 of cesium? Note that 1 ev (electron volt)=1.60×10−19 j. brainly.com/question/6953278

2. Calculate the wavelength of an electron (m = 9.11 × 10-28 g) moving at 3.66 × 106 m/s brainly.com/question/1979815

3. What is the frequency of light for which the wavelength is 7.1 × 102 nm brainly.com/question/9559140

Answer Details:

Grade: High School

Subject: Physics

Chapter: Electromagnetic Waves

Keywords:

Frequency, light, wavelength, 420 nm, 4.20x10^-7 m, 7.14x10^14 Hz, vacuum, air, crests, troughs, sound wave, light wave, mechanical wave.

Advantages and disadvantages of resonance

Answers

Advantage: Having hopefully a good price
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