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nika2105 [10]
3 years ago
10

What time that take if wavelength 1/10^8 and 3*10^8 m/s?

Physics
1 answer:
asambeis [7]3 years ago
5 0

Answer:3.33x10^(-17)

Explanation:

Period=wavelength ➗ velocity

Period=1/10^8 ➗ (3x10^8)

Period=3.33x10^(-17)

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A 2.0 kg particle moving along the z-axis experiences the
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At point x = 0, the particle accelerates. Since there will be change of velocity at that point. The the force of the particle will change from negative sign to positive sign according to the given figure, we can therefore conclude that the particle will have a turning point at point x = 0.

Given that a 2.0 kg particle moving along the z-axis experiences the  force shown in a given figure.

Force is the product of mass and acceleration. While acceleration is the rate of change of velocity. Both the force and acceleration are vector quantities. They have both magnitude and direction.

If the particle's velocity is  3.0 m/s at x = 0 m, that mean that the particle experience change of velocity at point x = 0. Since the the force of the particle will change from negative sign to positive sign according to the given figure, we can therefore conclude that the particle will have a turning point at point x = 0.

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6 0
3 years ago
In the desert air, sound travels at 358 meters per second (m/s). In the polar air, sound travels at 330 meters per
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Answer:

The correct option is;

C. The temperature of the air affects the speed of sound

Explanation:

The information given are;

The speed with which sound travels in the desert air = 358 m/s

The speed with which sound travels in the polar air = 330 m/s

The major difference between the desert air and the polar air is that the temperature of the desert air is hotter than the temperature of the air in the polar region. Therefore the speed of sound is affected by the air temperature.

The equation that gives the relationship of the speed of sound in air, v_{air}, to temperature is presented as follows;

v_{air} = 331\frac{m}{s} \times \sqrt{\dfrac{T_K}{273 K} } =  331\frac{m}{s} \times \sqrt{1 + \dfrac{T_{^{\circ}C}}{273 ^{\circ} C} }

Which shows that the speed of sound in air, v_{air}, rises as the temperature of the air rises.

Where;

T_{^{\circ}C} = The temperature of the air in degrees Celsius

T_K = The temperature of the air in degrees Kelvin.

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4 years ago
The amount of force we need to move an object is proportional to the amount of work done - the __________ force used, the more w
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Answer:

stronger.

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3 years ago
What does the text mean when it says “naming an elements is like creating history
dolphi86 [110]

Answer: When you name an element, it's usually because the element is newly discovered. So by naming an element you are creating something that will last throughout history.

Explanation:

5 0
3 years ago
A 500-W heating coil designed to operate from 110V is made of Nichrome wire 0.500 mm in diameter. (a) Assuming the resistivity o
Cloud [144]

The length of the wire used is 3.162 m

<h3>Resistivity of a material</h3>

The formula for calculating the power is expressed as;

P = V²/R

Determine th resistance

R =  V²/P

Determine the resistance of the heating coil by substituting

R = (110²/500)

R = 12100/500

R = 24.2ohms

Determine the length of the wire

R = ρL/A such that;

L = RA/ρ

Substitute the given parameters

diameter = 0.5 mm = 0.0005m

radius = 0.0005/2 = 0.00025 m

Determine the area

A = πr²

A = π * 0.00025²

A = 1.96*10^-7 m²

Determine the length

L = (24.2 * 1.96*10^-7 / 1.50*10^-6) =

L = 3.162 m

Hence the length of the wire used is 3.162 m

The length of the wire used is 3.162 m

Learn more on resistivity here; brainly.com/question/24858512

#SPJ4

3 0
1 year ago
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