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
Snezhnost [94]
4 years ago
7

Answer for this question please

Physics
2 answers:
Cloud [144]4 years ago
8 0
20 minutes is the half life
Tju [1.3M]4 years ago
6 0
The half life is 20 mins since it takes 20 mins for it to be half of what it was before
You might be interested in
A winery has a vat with two pipes leading to it. the inlet pipe can fill the vat in 66 ?hours, while the outlet pipe can empty i
guapka [62]
The time taken to fill the vat can be found using the least common multiple [LCM]. Given that the first pipe fills the tank in 66 hours and the second one empty the tank in 1010 hours, the time taken to fill the tank will be:
LCM(66,1010)
=66*1010
=66,660 hours
the answer is:
66,660 hours

5 0
3 years ago
More current makes a ________ electromagnet. <br><br> A) longer <br> B) Stronger <br> C) weaker
konstantin123 [22]
I think it's b, I'm not sure
6 0
3 years ago
Read 2 more answers
What is the frequency (s-1) the light from a laser with a wavelength of 615 nm? enter your answer with three decimals and no uni
Alekssandra [29.7K]

The frequency of light from a laser is 4.878 x10^ 14 s-1 hertz

<h3>Steps</h3>

v= c/ lambda

c= 3.00 x10^8 m/s

nm into meters

615nm (1m/ 1x10^9 nm) = 6.15x 10^-7 m

use frequency formula

v = 3.00 x10^8 m/s // 6.15 x10 ^-7

v = 4.878 x10^ 14 s-1 hertz

The frequency of light from a laser is 4.878 x10^ 14 s-1 hertz

<h3>What do you mean by frequency?</h3>
  • The quantity of waves that pass a set location in a predetermined period of time is known as frequency.
  • Therefore, if a wave passes through in half a second, the frequency is 2 per second.
  • The frequency is 100 times per hour if it takes 1/100 of an hour.

learn more about frequency here

brainly.com/question/254161

#SPJ4

6 0
1 year ago
What is the main idea of quantum psychics?
MArishka [77]
Hello there,
[]________________________________________________________[]

Quantum mechanics is the body of scientific laws that describe the wacky behavior of photons, electrons and the other particles that make up the universe.
[]________________________________________________________[]

I hope I was able to help you. :)

[Mark Brainliest] - Correct Certified?
6 0
3 years ago
A crate is dragged 4.0m along a rough floor with a constant velocity by a worker applying a force of 400N to a rope at an angle
andrew11 [14]

OK.  We've got that much. The worker does 1,385.6 joules of work
on the crate.  What is your question ?



5 0
3 years ago
Other questions:
  • According to Newton’s law of universal gravitation, which statements are true?
    10·2 answers
  • The following is an example of which type of reaction?<br> CH3OH + O2 → CO2 + 2H2O + heat
    8·1 answer
  • An electrical short cuts off all power to a submersible diving vehicle when it is a distance of 28 m below the surface of the oc
    8·1 answer
  • What is the definition of force according to the Newton first law of motion?​
    5·1 answer
  • Why the brakes of a car gets hotter than the brakes of a bicycle?
    8·1 answer
  • What is a compound formed when 2 or more elements are ___________ combined in a set __________.
    6·1 answer
  • A bird watcher meanders through the woods, walking 1.46 km due east, 0.123 km due south, and 4.24 km in a direction 52.4° north
    12·1 answer
  • If two objects have the same volume but one has a greater mass, the one with greater mass
    6·1 answer
  • Quelle est LA diferance entre les particules du gaz et du particules solides ​
    15·1 answer
  • I need help with my homework
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!