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3 years ago

The least penetrating form of radiation is ____. a. beta radiation c. alpha radiation b. gamma radiation d. X rays

Physics

2 answers:

svet-max [94.6K]3 years ago

8 0

C) alpha radiation seems to be the answer

professor190 [17]3 years ago

5 0

Answer:

The correct answer is option (C) Alpha radiation

Explanation:

The types of radiation which are alpha, beta and gamma radiation have different penetration power.

Penetration power is the ability of each of the types of radiation to pass through matter. The more they penetrate, the more dangerous they will be.

Alpha has the least penetration power because it has large mass size

Gamma has the highest penetration power because it has no mass size

Beta has the medium penetration power because it has a small mass size

Therefore, the penetration power is affected by the size of mass they carry.

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In your daily life you come across a range of motion in which acceleration is in the direction of motion

irakobra [83]

That makes no sense to me somehow

3 0

3 years ago

Electrons are added into the outermost what in groups 1 & 2

aivan3 [116]

S orbital.

Group 1 elements have a general configuration $ns^{1}$ , where n represents the highest occupied Principal Energy Level. For example, Lithium has the valence configuration $2s^{1}$ whereas Cesium has $6s^{1}$ . Both of them belong to Group 1 of Periodic Table.

Group 2 elements have a general configuration of $ns^{2}$ . For example, Magnesium has $3s^{2}$ as its outer shell configuration while Strontium has the same as $5s^{2}$ .

We see that in both the cases, the outermost S orbital is being filled.

3 0

3 years ago

What do you call the theory that says gravitational attraction caused bits of matter to collapse, begin spinning, and eventually

Semenov [28]

The nebular hypothesis is the name of the theory where gravitational attraction caused bits of matter to collapse, eventually forming a solar system.
Hope this helps :)

7 0

3 years ago

9. A plane starts at rest & accelerates along the ground before takeoff. It

Phoenix [80]

Answer:

9.877 m/s^2

Explanation:

The acceleration can be computed from ...

d = (1/2)at^2

(1600 m) = (1/2)a(18 s)^2

a = (1600/162) m/s^2 ≈ 9.877 m/s^2

6 0

3 years ago

Which describes a feature of the physical changes of all substances?

JulijaS [17]

Answer:

A change in size, shape, or matter.

Explanation:

A physical change does not produce new substances. A physical change may only change the physical properties of a substance. a change in size, shape, or phase of matter.

8 0

2 years ago