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
KATRIN_1 [288]
2 years ago
7

Thorium ____ has 90 protons and 137 neutrons.

Physics
1 answer:
Paha777 [63]2 years ago
5 0

Answer:

Thorium 227 (also known as Radioactinium)

You might be interested in
A solid disk of mass 2 kg and radius 2 m is given a horizontal push of 20N at a point .3 m above its center. a. What is the mini
Margaret [11]

Answer:

\mu_s=1.0205

Explanation:

Given:

  • mass of solid disk, m=2\ kg
  • radius of disk, r=2\ m
  • force of push applied to disk, F=20\ N
  • distance of application of force from the center, s=0.3\ m

<em>For the condition of no slip the force of  static friction must be greater than the applied force so that there is no skidding between the contact surfaces at the contact point.</em>

\therefore F

where:

f_s = static frictional force

\Rightarrow 20

\Rightarrow 20

\Rightarrow 20

\mu_s>1.0204

7 0
2 years ago
Two magnetic poles that repel one another are held three inches apart. What happens when the poles are moved closer together, to
dedylja [7]
Because of the magnets are actually electromagnetics aka what causes them to repel each other the atoms and the electrons will make a force of them pushing away from each other because the two magnetic poles are not north and south
3 0
3 years ago
Read 2 more answers
Explain the following observations:
Deffense [45]

Answer and Explanation:

a. An oxygen-filled balloon is not able to float in the air, because the oxygen inside the balloon is of the same density, that is, the same "weight" as the oxygen outside the balloon and present in the atmosphere. The balloon can only float if the gas inside it is less dense than atmospheric oxygen. Helium gas is less dense than atmospheric gas, so if a balloon is filled with helium gas, that balloon will be able to float because of the difference in density.

b. The ship is able to float in the water because its steel construction is hollow and full of air. This makes the average density of this ship less than the density of water, which makes the ship lighter than water and for this reason, this ship is able to float. In addition, the ship is partially immersed, allowing the weight of the ship on the water to counteract the buoyant force that the water promotes on the ship. Weight and buoyant are two opposing forces that keep the ship afloat.

6 0
2 years ago
The acceleration of the car with the data in the table above would be
neonofarm [45]

The acceleration of the car would be 0.33 first and then it would be 0.17.

<u>Explanation:</u>

An applied force is a force that is applied to an object by an individual or another item. On the off chance that an individual is pushing a work area over the room, at that point there is an applied power following up on the article. The applied power is the power applied on the work area by the individual.

The net force applied to the object rises to the mass of the article increased by the measure of its acceleration. The net power following up on the soccer ball is equivalent to the mass of the soccer ball duplicated by its adjustment in speed each second (its acceleration).

6 0
2 years ago
Leah is making a chart to compare and contrast renewable and non-renewable resources. Which of the following would best complete
Sedbober [7]

Answer:

d. Can be replaced at the same rate or faster than they are used

Explanation:

I just took the test, and its the right answer. Your welcome ✌

6 0
2 years ago
Read 2 more answers
Other questions:
  • The potential difference between two points, A and B, in an electric field is 2.00 volts. The energy required to move a charge o
    5·1 answer
  • The distance, in feet, a moving object has traveled after t seconds is given by 2t/(4 + t). find the acceleration of the object
    15·1 answer
  • How do you do this question? Please include free body diagrams and clear explanation, so I can understand.
    13·1 answer
  • Is the displacement D(x,t)=cx2+dt2, where c and d are constants, a possible traveling wave?
    10·1 answer
  • Which of the following refers to the region where there is a high probability of finding an electron?
    12·2 answers
  • Has anyone ever done the model of an atom lab?
    8·2 answers
  • How many cups of water should you drink in a day?
    5·1 answer
  • Which of the following situations describes a change that will result in a new kind of matter with different characteristics?
    11·1 answer
  • URGENT!!!
    7·1 answer
  • If the car is traveling at a velocity of 15 m/s, what is the approximate centripetal acceleration of the car?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!