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kirill [66]
4 years ago
7

Define the following radiation

Physics
2 answers:
kramer4 years ago
6 0

Answer:

The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.

stepan [7]4 years ago
5 0

Answer:

Radiation is characterized as the Emission and propogation of Energy(atomic and subatomic particles) in the form of Electromegnetic (Electric and Magnetic lines) waves through space or any medium.

Explanation:

These radiation can be in the form of heat rays , light rays, Xrays or UV rays.

Radition is bascically flow or movement of atomic particles or particularly energy in different forms. It is usually transmitted from a source to the destination for transferring Energy.

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What Gestalt principle illustrates our tendency to group items together based on how close they are to each other?
vladimir2022 [97]
Hey there,

Your correct answer would be proximity. Proximity is <span>principle illustrates our tendency to group items together based on how close they are to each other.

~Jurgen</span>
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3 years ago
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Visible light is responsible for its color?
Gekata [30.6K]

Answer:

The colour of visible light depends on its wavelength. These wavelengths range from 700 nm at the red end of the spectrum to 400 nm at the violet end. Visible light waves are the only electromagnetic waves we can

Explanation:

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Maria listed four important points about Einstein’s special theory of relativity. 1) applies to any object moving more slowly th
DiKsa [7]
<span> applies to any object moving more slowly than the speed of light</span>
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3 years ago
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Free electromagnetic oscillations occur in an electrical circuit. Knowing the characteristic dimensions of the elements, L=20mH
kirill115 [55]

Answer:

a. 0.199 ms b. 5.03 kHz c. 0.1 mJ

Explanation:

a. The period of oscillation of an L-C circuit is T = 2π√(LC) where L = inductance = 20 mH = 20 × 10⁻³ H and C = capacitance = 0.005 mF = 5 × 10⁻⁶ F.

So, T = 2π√(LC)

= 2π√(20 × 10⁻³ H × 5 × 10⁻⁶ F)

= 2π√(100 × 10⁻¹¹)

= 2π√(10 × 10⁻¹⁰)

= 2π(3.16 × 10⁻⁵)

= 19.87 × 10⁻⁵

= 1.987 × 10⁻⁴ s

= 1.99 × 10⁻⁴ s

= 0.199 × 10⁻³ s

= 0.199 ms

b. frequency , f = 1/T where T = period = 0.199 × 10⁻³ s.

So, f = 1/0.199 × 10⁻³ s

= 5.03 × 10³ Hz

= 5.03 kHz

c. The electromagnetic energy E = 1/2Li² where L = inductance = 20 × 10⁻³ H and i = current = 100 mA = 0.1 A

So, E = 1/2Li²

= 1/2 × 20 × 10⁻³ H × (0.1 A)²

= 0.1 × 10⁻³ J

= 0.1 mJ

3 0
3 years ago
A ball is thrown vertically into the air with a initial velocity of 20 m/s. Find the maximum height of the ball and find the amo
REY [17]

Answer:

The maximum height of the ball is 20 m. The ball needs 2 s to reach that height.

Explanation:

The equation that describes the height and velocity of the ball are the following:

y = y0 + v0 · t + 1/2 · g · t²

v = v0 + g · t

Where:

y = height of the ball at time t

y0 = initial height

v0 = initial velocity

t = time

g = acceleration

v = velocity at time t

When the ball is at its maximum height, its velocity is 0, then, using the equation of the velocity, we can calculate the time at which the ball is at its max-height.

v = v0 + g · t

0 = 20 m/s - 9.8 m/s² · t

-20 m/s / -9.8 m/s² = t

t = 2.0 s

Then, the ball reaches its maximum height in 2 s.

Now,  we can calculate the max-height obtaining the position at time t = 2.0 s:

y = y0 + v0 · t + 1/2 · g · t²

y = 0 m + 20 m/s · 2 s - 1/2 · 9,8 m/s² · (2 s)²

y = 20 m

8 0
4 years ago
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