1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Afina-wow [57]
3 years ago
7

what type of radiation is emitted when polonium-212 forms lead-208?. A.Alpha particle. B.beta particle. C.gamma radiation. D.non

e of the above
Physics
2 answers:
makkiz [27]3 years ago
8 0

Answer:

The correct answer is a = alpha particle

Explanation:

Hello!

Let's solve this!

An alpha particle is a particle formed by two neutrons and two protons, so its charge is positive.

A beta particle is a high energy electron, so its charge is negative.

A gamma radiation is a radiation composed of photons.

In this case, the correct answer is a = alpha particle

8090 [49]3 years ago
4 0
Alpha particle is the type of radiation that is emitted when polonium - 212 forms from lead - 208. The correct option among all the options that are given in the question is the first option or option "A". An alpha particle is basically a combination of two protons and two neutrons. I hope the answer has helped you.
You might be interested in
If the electron has half the speed needed to reach the negative plate, it will turn around and go towards the positive plate. Wh
In-s [12.5K]

Answer:

 v = -v₀ / 2

Explanation:

For this exercise let's use kinematics relations.

Let's use the initial conditions to find the acceleration of the electron

            v² = v₀² - 2a y

when the initial velocity is vo it reaches just the negative plate so v = 0

           a = v₀² / 2y

now they tell us that the initial velocity is half

          v’² = v₀’² - 2 a y’

          v₀ ’= v₀ / 2

at the point where turn v = 0              

          0 = v₀² /4  - 2 a y '

          v₀² /4 = 2 (v₀² / 2y)  y’

          y = 4 y'

          y ’= y / 4

We can see that when the velocity is half, advance only ¼ of the distance between the plates, now let's calculate the velocity if it leaves this position with zero velocity.

         v² = v₀² -2a y’

         v² = 0 - 2 (v₀² / 2y) y / 4

         v² = -v₀² / 4

         v = -v₀ / 2

We can see that as the system has no friction, the arrival speed is the same as the exit speed, but with the opposite direction.

7 0
3 years ago
Which of the following is an example of an electromagnetic wave ?
Alex

Answer:

Its a wave

Explanation:

THis is one

3 0
3 years ago
Read 2 more answers
A wildlife researcher is tracking a flock of geese. The geese fly 4.0 km due west, then turn toward the north by 40º and fly ano
Kobotan [32]

Wildlife researcher starts from a and then reaches b, he turns towards north 40 degree to move towards c.

Total displacement is ac

Total horizontal displacement = 4+4 cos40 =7.06 km

Total vertical displacement = 4 sin40 =2.57 km

Total displacement = \sqrt{7.06^2+2.57^2} = 7.51 km

7 0
3 years ago
When you compare the prices of two different pairs of shoes, money is a _____.
Vladimir [108]

unit of account is the answer

3 0
3 years ago
Read 2 more answers
A partical of an atom that carries a negative charge is called a a/n
jeka57 [31]
It is called a negative nuetron/atom
7 0
3 years ago
Read 2 more answers
Other questions:
  • Humans have 46 chromosomes. The cells created by meiosis have
    10·1 answer
  • Efficiency is given by A. actual output divided by effective capacity. B. design capacity divided by utilization. C. effective c
    6·2 answers
  • What is in the boron family with 3 valence electrons
    13·1 answer
  • 3.4.3 Quiz: Buoyancy
    8·1 answer
  • A student tests the acidity of nitric acid (HNO3) by dissolving a sample of HNO3 in a solution of liquid methane. He then uses a
    14·2 answers
  • A 975-kg elevator accelerates upward at 0.754 m/s2, pulled by a cable of negligible mass. Find the tension force in the cable.
    7·1 answer
  • The reactivity of an atom arises primarily from ___.
    9·1 answer
  • A spring does 5.0 J of work on a 0.10-kg ball bearing in a pinball machine. The ball's
    12·1 answer
  • New alleles arising from mutations in a population will​
    11·1 answer
  • How does the sun create heat?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!