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3 years ago

What kind of wave can pass through a vaccum?

Physics

1 answer:

Darya [45]3 years ago

6 0

_Award brainliest if helped!
Ans: Electromagnetic Wave
which propagates without a medium

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A person using an oxygen mask is breathing air that is 33% oxygen. what is the partial pressure of the o2, when the air pressure

yawa3891 [41]

The partial pressure of the O2 is 36.3 kiloPascal when the air pressure in the mask is 110 kiloPascal based on the isotherm relation. This problem can be solved by using the isotherm relation equation which stated as Vx/Vtot = px/ptot, where V represents volume, p represents the pressure, x represents the partial gas, and tot represents the total gas. Calculation: 33/100 = px/110 --> px = 36.3

5 0

3 years ago

A type of wave is mechanical - what's the other type?

ANEK [815]

Answer:

There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves. :/

Explanation:

8 0

3 years ago

A vector is given in terms of its magnitude, v=8.7m/s and its direction, 256 degrees standard position. a) what is this vector i

Wittaler [7]

Answer:

Explanation:

Given

magnitude of vector=8.7 m/s

Direction $=256^{\circ}$

Therefore vector x component is $=8.7\cos (256)$

=-2.104

i.e. it is acting in negative x axis

vector y component $=8.7\sin (256)=-8.44 m/s$

Therefore it lies in negative y axis

Judging vector x and y component

It lies in third quadrant

4 0

3 years ago

Sarah is a forensic what is her job to do

Dominik [7]

Answer:

She takes pictures and analyzes DNA samples

5 0

3 years ago

a boy stands 80m in front of a tall cliff and produces sound by clapping two planks together. A girl standing next to him time t

harina [27]

Answer:

320 m/s

Explanation:

Speed = Distance / Time

= 160m/0.5s

= 320 m/s

[Note: The distance is 160m as the sound travelled to the cliff before reflecting back. Hence it travelled 80 + 80 = 160 m]

4 0

3 years ago