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3 years ago

Name the three different types of radiation and describe how they are different in their penetrating abilities. Explain.

Physics

2 answers:

Andreas93 [3]3 years ago

8 0

Answer:

The three different type of radiations are:

1) Alpha (α) radiation

2) Beta (β) radiation

3) Gamma ( $\gamma$ ) radiation

Penetrating Ability:

Penetrating Ability of gamma rays is the highest.

That of Beta Rays is higher.

That of Alpha Rays is lowest

Y_Kistochka [10]3 years ago

7 0

Answer:

1. Alpha radiation

2. Beta radiation

3. Gamma radiation

Explanation:

Penetration Ability:

ALPHA: being relative heavier in mass they have less penetration power.They can penetrate thin layer of solid such as Mica paper. They are stopped by an aluminum foil that is 0.1mm thick

2:BETA:being relative lighter in mass their penetrating power is greater than alpha rays

3: GAMMA:their penetrating power is much greater than other two rays....

Hope it will helps you........

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A car with a mass of 1380 Kg is traveling at 23 m/s to the north. A truck with a mass of 1625 Kg is traveling at 26 m/s to the s

trasher [3.6K]

Answer: -3.49 m/s (to the south)

Explanation:

This problem can be solved by the Conservation of Momentum principle which establishes the initial momentum $p_{i}$ must be equal to the final momentum $p_{f}$ , and taking into account this is aninelastic collision:

Before the collision:

$p_{i}=mV_{o}+MU_{o}$ (1)

After the collision:

$p_{f}=(m+M)V_{f}$ (2)

Where:

$m=1380 kg$ is the mass of the car

$V_{o}=23 m/s$ is the velocity of the car, directed to the north

$M=1625 kg$ is the mass of the truck

$U_{o}=-26 m/s$ is the velocity of the truck, directed to the south

$V_{f}$ is the final velocity of both the car and the truck

$p_{i}=p_{f}$ (3)

$mV_{o}+MU_{o}=(m+M)V_{f}$ (4)

Isolating $V_{f}$ :

$V_{f}=\frac{mV_{o}+MU_{o}}{m+M}$ (5)

$V_{f}=\frac{(1380 kg)(23 m/s)+(1625 kg)(-26 m/s)}{1380 kg+1625 kg}$ (6)

Finally:

$V_{f}=-3.49 m/s$ The negative sign indicates the direction of the velocity is to the south

8 0

3 years ago

What changes would result in a decrease in the gravitational force between two objects? Check all that apply.

REY [17]

I'm sorry, it says check all that apply, however there are no choices given. You should edit, and add the multiple choice answers.

My Answer:

Well if the masses of two objects were both decreased, it would result in a decrease in the gravitational force. So I guess the two objects masses would need to be decreased.

4 0

3 years ago

A weightlifter lifts a 1250-N barbell 2 m in 3 s.How much power was used to lift the barbell?

Vlad [161]

The power is 833.3 W

Explanation:

First of all, we need to calculate the work done in lifting the barbell, which is equal to the change in gravitational potential energy of the barbell:

$W=(mg)h$