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3 years ago

Gamma rays x rays visible light and radio waves are all types of

Physics

1 answer:

bazaltina [42]3 years ago

6 0

Answer:

Electromagnetic waves

Explanation:

Electromagnetic waves are waves that consist of oscillating electric and magnetic fields, that oscillate perpendicularly to each other and perpendicularly to the direction of propagation of the wave (for such a reason, these waves are also called transverse waves).

Electromagnetic waves always travel in a vacuum at the same speed, called speed of light:

$c=3.0\cdot 10^8 m/s$

and they are classified into 7 different types, according to their frequency. From lowest to highest frequency, we have:

Radio waves

Microwaves

Infrared

Visible light

Ultraviolet

X-rays

Gamma rays

Therefore, gamma rays, x-rays, visible light and radio waves are all types of electromagnetic waves with different frequencies.

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A hot air ballo0n is ascending straight up at a constant

finlep [7]

Answer: The two places altitudes are: 16.17 m and 40.67 m

Explanation:

Hi!

Lets call z to the vertical direction (z= is ground) . Then the positions of the balloon and the pellet, using the values of the velocities we are given, are:

$z_b =\text{balloon position}\\z_p=\text{pellet position}\\z_b=(7\frac{m}{s})t\\z_p=30\frac{m}{s}(t-t_0)-\frac{g}{2}(t-t_0)^2\\g=9.8\frac{m}{s^2}$

How do we know the value of t₀? This is the time when the pellet is fired. At this time the pellet position is zero: its initial position. To calculate it we know that the pellet is fired when the ballon is in z = 12m. Then:

$t_0=\frac{12}{7}s$

We need to know the when the z values of balloon and pellet is the same:

$z_b=z_p\\(7\frac{m}{s})t =30\frac{m}{s}(t-\frac{12}{7}s)-\frac{g}{2}(t-\frac{12}{7}s)^2$

We need to find the roots of the quadratic equation. They are:

$t_1=2.31s\\t_2=5.81$

To know the altitude where the to objects meet, we replace the time values:

$z_1=16,17m\\z_2=40,67m$

7 0

3 years ago

How would you measure the volume of an oddly shaped object

weqwewe [10]

Answer:

By placing it in water and measuring how high the water rises

Explanation:

You can place the object in a can filled with water. You'll then see that as it sits there, the water level rises. You would then measure that to find the volume.

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3 years ago

Momentum of the 2 kg mass moving with velocity 10 m/s is *

gulaghasi [49]

20 kg*m/s because there is 2 kg mass and 10 m/s so you can multiply.

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3 years ago

What best describes the difference between the second sound wave and the first?

Vikki [24]

Missing an attached sheet with the sound waves. Please add the attached sheet so I can properly help.

Thanks! :D

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3 years ago

Is this true or false ethics deals with morals and values and can be measured and tested using the scientific method.

sammy [17]

This is false. Even though the first part is true, the second isn't because morals and values are simply widely accepted opinions that most humans have, and you can't test opinions with the scientific method, only facts!

3 0

3 years ago

Read 2 more answers