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3 years ago

If an alpha particle and a beta particle have the same energy, which particle will penetrate farther into an object?

Physics

1 answer:

lidiya [134]3 years ago

5 0

Answer:

Beta particle

Explanation:

If an alpha particle and a beta particle have the same energy, beta particle will penetrate farther into an object than alpha particle because;

1. In air, beta particles can travel a few hundred times farther than alpha particles.

2. Beta particles have more penetrating power than alpha particles.

3. Alpha particle can be absorbed or stopped by an inch or less 1-2 centimeters of air or a thin piece of tissue while beta particles can be stopped or absorbed by a thin layer of Aluminium.

4. Alpha particles loose all of their energies in a small volume easily that beta particles.

5. Beta particles can traveled a longer distance between 2-3 meters at a speed nearly equal to that of light than alpha particles which travel a distance between 2-4 cm at a speed approximately five percent the speed of light.

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Ca(OH)2 is__<br> An acid <br> A base<br> A salt

svlad2 [7]

Answer:

Explanation:

An acid has H as the metal as in HCl

A base has OH as the nonmetal. (so Ca(OH)^2 is a base)

A salt has neither.

5 0

3 years ago

A pottery wheel, initially at rest, is assumed to be a uniform disk of mass 3.0 kg and radius 20.0 cm. A 25.0 N force is applied

miv72 [106K]

Answer:

a) 83.33 rad/s^2

b) 2500 rad/s

c) 6187.5 rad

Explanation:

Given data:

radius of wheel = 20.0 cm

mass of wheel = 3.0 kg

force = 25 N

a) angular acceleration

we know torque is given as

$T = I \times \alpha$

$F\times R = I \times \alpha$

$F\times R = \frac{1}{2} mR^2 \times \alpha$

solving for angular acceleration $\alpha$

$\alpha = \frac{2F}{mR} = \frac{2*25}{3*0.2} = 83.33 rad/s^2$

b) angular velocity

duartion of force applied = 30.0 sec

$\omega_{30} = \omega_0 +alpha t$

= o + 83.33 *30 = 2500 rad/sec

c) angular displacement

$\theta_{15} = = \omega_0 +\frac{1}{2} alpha t_{15}^2 = 0 + \frac{1}{2} 83.33 \times 15^2$

$\theta_{30} = \omega_0 +\frac{1}{2} alpha t_{30}^2 = 0 + \frac{1}{2} 83.33 \times 30^2$

$\Delta \theta = \theta_{30} - \theta_{15}$

$\Delta \theta = 6187.5 rad$

3 0

3 years ago

(NEED HELP ASAP) Which direction will the object move when forces are applied?

Ivahew [28]

Answer:

South

Explanation:

8 0

3 years ago

Read 2 more answers

What is the speed of a ball that is attached to a string and swings in a horizontal circle of radius 2.0 m with the central acce

Ira Lisetskai [31]

Answer:

5.48 m/s.

Explanation:

Use the formula a=v^2/r.

7 0

3 years ago

Describe Newton's law of gravitation and its application?

Jlenok [28]

Answer:

Newton's law of gravitation states that every object in this universe attracts every other object with a force called gravity,

when the distance between the two object is increased the gravitational force decreases by its square,

and when the mass an object increases the gravitational force also increases,

therefore, gravitational force is directly proportional to the mass of the two objects and is square inversely proportional to distance between them.

Hope it helped u,

pls mark as the brainliest and put thanks

^_^

4 0

3 years ago