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3 years ago

Are all forms of radiation safe for humans?

Physics

2 answers:

Evgen [1.6K]3 years ago

7 0

Not all forms of radiation is safe for humans

ryzh [129]3 years ago

6 0

Answer:

there are not all safe for humans

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You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that

loris [4]

Questions Diagram is attached below

Answer:

$T=2.08s$

Explanation:

From the question we are told that:

Speed of Train $V=3.0m.s$

Angle $\theta=12\textdegree$

Height of window $h_w=0.90m$

Width of window $w_w=2.0m$

The Horizontal distance between B and A from Trigonometric Laws is mathematically given by

$b=\frac{0.9}{tan12}$

$b=4.23$

Therefore

Distance from A-A

$d_a=2.0+4.23$

$d_a=6.23$

Therefore

Time Required to travel trough d is mathematically given as

$T=\frac{d_a}{v}$

$T=\frac{6.23}{3}$

$T=2.08s$

5 0

3 years ago

Which describes how a simple machine can make work easier ?

sveta [45]

A simple machine can make work easier by reduce the amount of energy needed to perform a task, therefore, B. it magnifies the potential energy so that the kinetic energy is greater is the correct answer.

7 0

3 years ago

Will give the first answer brainliest. Picture attached.

mylen [45]

Answer:

2699.73661Ω or 2.697kΩ

Explanation:

$V=IR$

So...

$R=\frac{V}{I}$

So...

$\frac{12.3}{0.004556} = 2699.73661$ Ω

This is the answer, but the resistance is much too high for a circuit like this

4 0

3 years ago

Express newton pascal joule and watt in fundamental unit

Nadya [2.5K]

i added an image. i hope it helped :)

3 0

3 years ago

Compare and contrast the shape and volume of each state of matter

Komok [63]

Answer:

Solid is the state in which matter maintains a fixed volume and shape; liquid is the state in which matter adapts to the shape of its container but varies only slightly in volume; and gas is the state in which matter expands to occupy the volume and shape of its container.

8 0

3 years ago