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
hoa [83]
3 years ago
6

A beam of unstable K mesons, traveling at a speed of 32c, passes through two counters 9.00 m apart. The particles suffer a negli

gible loss of speed and energy in passing through the counters but give electrical pulses that can be counted. It is observed that 1000 counts are recorded in the first counter and 250 in the second. Assuming that this whole decrease is due to the decay of the particles in flight, what is their half-life as measured in their own rest system?
Physics
1 answer:
Anna71 [15]3 years ago
5 0

Answer:

8.66 nano seconds

Explanation:

speed of k mesons ( v ) = c \sqrt{3} /2  m/s

Distance between counters ( d ) = 9.00 m

number of countable electrical pulses = 1000 counts in first counter and 250 in second counter

time of travel = d / v  = 18 / \sqrt{3} C  secs

Next write the decay of particles in lab frame

finally calculate the half life of Meson in its own frame

( t 1/2) of meson in its own frame = 8.66 n-secs

attached below is a detailed solution

You might be interested in
A 72-tooth gear is connected to a 12-tooth gear. If the large gear makes one complete turn, how many turns
viktelen [127]
You divide 72 by 12 to get 6.
8 0
3 years ago
PLz I Need Help PLZZZ ASAP
AURORKA [14]

#1

As we are increasing the frequency in the simulation the wavelength is decreasing

So if speed remains constant then wavelength and frequency depends inversely on each other

If we are in boat and and moving over very small wavelengths then these small wavelength will be encountered continuously by the boat in short interval of times

#2

As we are changing the amplitude in the simulation there is no change in the speed frequency and wavelength.

So amplitude is independent of all these parameter

Amplitude of wave will decide the energy of wave

So light of greater intensity is the light of larger amplitude

#3

In our daily life we deal with two waves

1 sound waves

2 light waves

3 0
3 years ago
A spherical shell of radius 9.0 cm carries a uniform surface charge density σ= 9.0 nC/m2. The electric field at r= 9.1 cm is app
maria [59]

Answer:

995.12 N/C

Explanation:

R = 9 cm = 0.09 m

σ = 9 nC/m^2 = 9 x 10^-9 C/m^2

r = 9.1 cm = 0.091 m

q = σ x 4π R² = 9 x 10^-9 x 4 x 3.14 x 0.09 x 0.09 = 9.156 x 10^-10 C

E = kq / r^2

E = ( 9 x 10^9 x 9.156 x 10^-10) / (0.091 x 0.091)

E = 995.12 N/C

8 0
3 years ago
A detrital rock is named
levacccp [35]
Sedimentary rocks also known as clastic sedimentary rock
3 0
3 years ago
Read 2 more answers
A car accelerates from rest at a rate of 6.50 m/s2. Determine thevelocity of the car at t = 4.00 s.
aksik [14]

Answer:

1.62 m/s2

Explanation:

6.50 divided by 4

3 0
2 years ago
Other questions:
  • What is true about current?
    12·2 answers
  • There are 92 naturally occurring elements. How does this relate to the number of compounds?
    12·1 answer
  • Moons gravity and its comparison with earths gravity
    6·2 answers
  • Shortly after exercising ________, people become less restrained in their aggressive responses to provocation.
    13·1 answer
  • What is the temperature used for the extension step?
    12·1 answer
  • Look at this picture of a frog.
    9·2 answers
  • According to Newton’s first law of motion what will an object in motion do when no external force acts on it ?
    14·1 answer
  • A.
    13·1 answer
  • Como se pueden d los valores dnwkwnjwnwiwnwiqnqjwowkw?
    6·1 answer
  • Why do we add the masses together after that inelastic collision?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!