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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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What is the first step for both loading and unloading a firearm?

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Point the muzzle in a safe direction.

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3 years ago

Write the relation between horsepower and Watt?

Vadim26 [7]

Explanation:

Horsepower is related to watt as: 1 horsepower = 746 W = 750 W approximately. 1 horsepower (HP) = 750 watt (approx.) The power is one watt when one joule of work is done in one second.

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2 years ago

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A large helium filled balloon is used as the center piece for a graduation party. The balloon alone has a mass of 222 kg and it

inn [45]

Answer:

The buoyant force is 3778.8 N in upward.

Explanation:

Given that,

Mass of balloon = 222 Kg

Volume = 328 m³

Density of air = 1.20 kg/m³

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We need to calculate the buoyant force acting

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$F_{b}=\rho_{air}\times V_{b}\times g$

Where, $\rho_{air}$ = density of air

V = Volume of balloon

g = acceleration due to gravity

Put the value into the formula

$F_{b}=1.20\times321\times9.81$

$F_{b}=3778.8\ N$

This buoyant force is in upward direction.

Hence, The buoyant force is 3778.8 N in upward.

4 0

3 years ago

A well-thrown ball is caught in a well-padded mitt. If the deceleration of the ball is 2.10×104 m/s2 , and 1.85 ms (1 ms = 10−3

ankoles [38]

Answer:

u = - 38.85 m/s^-1

Explanation:

given data:

acceleration = 2.10*10^4 m/s^2

time = 1.85*10^{-3} s

final velocity = 0 m/s

from equation of motion we have following relation

v = u +at

0 = u + 2.10*10^4 *1.85*10^{-3}

0 = u + (21 *1.85)

0 = u + 38.85

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negative sign indicate that the ball bounce in opposite directon

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3 years ago

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Hitman42 [59]

Distance, since distance represents how far something has travelled, which would be in our case 2.5m.

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3 years ago

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