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
aksik [14]
3 years ago
5

Why is it okay to have a radioactive alpha source in a smoke detector in your house?

Physics
1 answer:
egoroff_w [7]3 years ago
5 0
When smoke particles pass between the source of radiation and the detector the drop in radiation will be sufficient to tigger the alarm. <span />
You might be interested in
Which of the following has the greatest magnitude?
Anna11 [10]

The force of 30 Newtons has.  Its magnitude is 30 Newtons.

3 0
3 years ago
How do consumers sometimes interact with producers?
Papessa [141]
We use them to survive, such as for oxygen, food, and shelter. 
6 0
3 years ago
Read 2 more answers
1.)Which is the correctly balanced equation?
iVinArrow [24]
A. The correctly balanced equation is that in which the number of atoms of a certain element at the left-hand side is similar to that in the right hand side or the reactant side and product side, respectively. From the given equation, the answer would be,

       C. Cl2 + 2NaI --> 2NaCl + I2


B. In the given chemical reaction above, heat is emitted such that it appears in the product side of the equation. Hence, this is an example of a combustion reaction. 

C. Similar with the reasoning in letter A, the answer to this item is,
          B. 2H2 + O2 --> 2H2O
8 0
3 years ago
A laser beam with a frequency of 180 Hz forms an 8 m standing wave with 10 nodes.
DIA [1.3K]

Answer:33

Explanation:

F = frequency

N =  Node count

w = wave lenght

v = wave velocity

L = distance wave traveled

First find wave length of laser

w = (2/(N))*(L)

w = (2/(10))*(8)

w = 1.6

then using (w), find velocity

V =  (w)(F)

V = (1.6)*(108)

V = 288

Plug in V and the new frequency to solve for new node count

F = NV/2L

(600) = (N)*(288) / 2 * (8)

(N) = 33.33

there are 33 nodes

8 0
3 years ago
Ashkon throws a basketball across the court to his teammate. The ball has 57 J of potential energy and 61 J of kinetic energy. W
Gwar [14]
The total mechanical energy of the ball is the sum of its potential energy U and its kinetic energy K, therefore:
E=U+K=57 J+61 J=118 J
so, the total mechanical energy of the basketball is 118 J.
8 0
3 years ago
Read 2 more answers
Other questions:
  • The aircraft has a mass of 6x 104kg. Two identical jet engines provide a thrusting
    11·1 answer
  • Which of the following will stay constant, no matter if the substance is in the solid, liquid, or gas state?
    12·1 answer
  • Which of these oceanic landforms is similar to a canyon?
    15·2 answers
  • A 200N force pushes forward on the 20kg truck. The truck pulls two crates connected together by ropes, as shown. The gravitation
    15·1 answer
  • Does mortality and fertility rates effect human population?
    8·2 answers
  • When two plates of the same density collide, what will most likely happen?
    7·1 answer
  • Which occurs when a warm fluid cools down?<br><br> ⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔
    13·2 answers
  • If you see something not being right on a project you are working-even if it isn't you doing the wrong thing-it is your ethical
    10·2 answers
  • 5<br> b. What is the molecular shape of the molecule? (3 points)
    7·2 answers
  • A 0.75 kg model car is moving west at a speed of 9.0 m/s when it collides head-on with a 2.00 kg model truck that is traveling e
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!