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
saveliy_v [14]
3 years ago
13

Uranium-235 decays naturally, by alpha decay. Write the balance decay equation below

Physics
2 answers:
ANTONII [103]3 years ago
7 0

Answer

92U^235→90Th^231+2He^4

Explanation

Uranium-235 produces thorium-231 by alpha decay.

An α-particle is a helium nucleus. It contains 2 protons and 2 neutrons, for a mass number of 4.

During α-decay, an atomic nucleus emits an alpha particle. It transforms (or decays) into an atom with an atomic number 2 less and a mass number 4 less.

Thus, uranium-238 decays through α-particle emission to form thorium-231  

92U^235  → 90Th^231  + 2He^4

Shalnov [3]3 years ago
6 0

If all you are getting is Th then the balanced equation is written below

_{92}^{235}\text{U} \longrightarrow _{90}^{231}\text{Th +}_{2}^{4}\text{He}

The Uranium 235 decays into Thorium 231 and an alpha particle.

I'm not sure this decay happens in nature, but Uranium 238 does decay this way.

You might be interested in
Superman throws a boulder of weight 3800 n at an adversary on the surface of the earth, where the magnitude of the acceleration
evablogger [386]
The weight of the boulder is 3800 N, therefore its mass i s
3800/9.8 = 387.755 kg

If the horizontal acceleration is 12.8 m/s², then the horizontal force applied is
F = (387.755 kg)*(12.8 m/s²) = 4.963 x 10³ n = 4.963 kN

Answer: 4.963 kN
5 0
4 years ago
A point charge q1 = is located at the center of a thick conducting spherical shell of inner radius a = 2.2 cm and outer radius b
Yanka [14]

Answer:

Ex(P) = -3.602 x 10^6 N/C

Explanation:

  • given q1 = -5.7μC
  • q2 = 2.6 μC = the net charge on the conducting shell
  • inner radius of conducting shell = a = 2.2 cm =0.022m
  • outer radius of conducting shell = b = 4.5 cm = 0.045m

1) To get Ex(P), the value of the x-component of the electric field at point P, located a distance 8.8 cm along the x-axis from q1 ;

Ex(P) = k(q1+q2)/r^2

= 9 x 10^9 (-5.7 + 2.6) x 10^-6 /0.088^2

Ex(P) = -27.9 x 10^3/ 0.007744

Ex(P) = -3.602 x 10^6 N/C

7 0
4 years ago
What is the current flowing through the circuit shown? (V= 120 V, R₁ = 20 02,
spayn [35]

Assumed that resistors are connected in series .

  • R_net=20+50+10=80ohm

  • Voltage=V=120V

Current=I

  • V/R
  • 120/80
  • 3/2
  • 1.5A
3 0
2 years ago
How many times will a skydiver reach terminal velocity before landing on the ground?.......... A. 0 B. 1 C. 3 D. 2
ludmilkaskok [199]

Answer:

D. 2

Explanation:

The skydiver will reach terminal velocity when gravity = air resistance. When this occurs, he/she will no longer accelerate and his/her speed will be constant.

Once the skydiver opens the parachute, his/her speed will decrease suddenly, and again the air resistance increases due to the parachute's large area. Eventually, gravity will equal air resistance again and terminal velocity will be reached for the second time.

Even though the speeds are different, the first terminal velocity is much higher than the second one, this question refers to how many times terminal velocity is reached, not how many times the skydiver accelerates.

5 0
3 years ago
Will give BRAINLIEST!
tresset_1 [31]

A limestone plateau has no surface water. All the water is pulled underground through cracks and crevices in the surface. What most likely will cause the underground of the plateau to change over time?

Physical weathering due to frost wedging


Physical weathering due to abrasion


Chemical weathering due to oxygen


Chemical weathering due to water  <em>Correct Answer</em>

6 0
4 years ago
Other questions:
  • Well into the twentieth century, many scientists believed the ocean floor was
    6·1 answer
  • A tube 1.20 m long is closed at one end. A stretched wire is placed near the open end. The wire is 0.350 m long and has a mass o
    14·1 answer
  • Jenny and Alyssa are members of the cross-country team. On a training run, Jenny starts off and runs at a con-stant 3.8 m/s. Aly
    13·1 answer
  • One problem for humans living in outer space is that they are apparently weightless. One way around this problem is to design a
    9·1 answer
  • A pile driver drops from a height of 35 meters
    11·2 answers
  • Which body have a period of revolution of 29.6 days?
    10·2 answers
  • Which term describes the difference in electrical charge across a membrane?
    12·1 answer
  • An object being swung in circles on the end of rope is an<br> projectile motion.<br> example of
    7·1 answer
  • A level of
    7·1 answer
  • I WILL MARK YOU IF YOU HELP
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!