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
Arisa [49]
3 years ago
8

The separation in time between the arrival of primary and secondary waves is

Physics
1 answer:
Gre4nikov [31]3 years ago
3 0
The separation in time between the arrival of primary and secondary wave is called LAG TIME.
The time difference between the arrival of primary wave and secondary wave in a seismogram is called lag time. The primary wave always travels faster than the secondary wave, thus the difference between the two can be obtained by estimating the difference between the arrival time of the two waves/.
You might be interested in
There are three states of ………….
erica [24]
There are three states of matter.

5 0
4 years ago
The rotational inertia of a collapsing spinning star changes to 2/5 its initial value. what is the ratio of the new rotational k
Alexandra [31]
Let K.E_{i} be the intial K.E and K.E_{new} be new K.E,

I_{new} = \frac{2}{5} I _{i}

K.E_{i} =  \frac{I_{i} w^{2} }{2} --- (i)
K.E_{new} =  \frac{I_{new}w^{2}  }{2}

Therefore, 
K.E_{new} =  \frac{2I_{i}w^{2} }{5*2} ----(ii)


Dividing i and ii,

\frac{K.E_{new} }{K.E_{i} } =  \frac{2}{5}
4 0
3 years ago
Please answer formula is in text
Travka [436]

E=mc^2 n its given 1kg = 9x10^16J

so need to figure out the total mass loss n u can find the energy released

mass loss when 4x H atom combines to form 1x He atom in a fusion reaction is given as 4.59x10^-29kg

1 mole of He has 6.02x10^23 He atoms

so 2.7 moles of He has 2.7x6.02x10^23 He atoms

the total mass loss for 2.7 moles of He created in a fusion reaction

= 2.7x6.02x10^23 x 4.59x10^-29kg

= 7.46x10^-5kg

radiation energy released from this fusion reaction

= 7.46x10^-5 x 9x10^16J

= 6.7x10^12J

its 60 BILLION times more than burning carbon!!


7 0
3 years ago
Read 2 more answers
During an automobile crash test, the average force exerted by a solid wall on a 1,900 kg car that hits the wall is measured to b
777dan777 [17]

Answer:

 u = 23.68 m/s

Explanation:

given,

mass of the car, m = 1900 Kg

Force exerted on the wall, F = 150,000 N

time of contact, t = 0.3 s

final speed of the car = 0 m/s

initial speed of the car = ?

we know,

Impulse is equal to change in momentum

J = m v- mu

J = 1900 x 0 - 1900 x (-u)

J = 1900 u

impulse is also equal to force into time

J = F x t

equating both equation of impulse

1900 u = F  x t

1900 u = 150000 x 0.3

1900 u = 45000

 u = 23.68 m/s

Speed of the car before collision is equal to 23.68 m/s

3 0
3 years ago
What happens to the speed of an object when dropped at free fall
dedylja [7]

If it's not falling through air, water, smoke, or anything else,
and gravity is the only force on it, then its speed increases
at a constant rate ... 9.8 meters per second for every second
it falls.  (That's the number on Earth.  It's different in other places.)
3 0
4 years ago
Other questions:
  • When you are running around a track, what kind of energy are you using?
    12·1 answer
  • Two beams of coherent light start out at the same point in phase and travel different paths to arrive at point P. If the maximum
    10·1 answer
  • A gas that is exist in outer space is made of ?
    14·2 answers
  • If you bake a cake in the oven in your kitchen, you can feel the warmth of the oven if you stand next to it. This is an example
    6·1 answer
  • Mrs. Smith does her daily chores. She walks 5 m to the laundry room and then turns around and walks -14 m to the kitchen. The wh
    7·1 answer
  • WILL NAME THE BRAINLIEST! An airplane undergoes the following displacements: It first flies 72 km in a direction of 30° East of
    8·1 answer
  • A ship sends a 1200 Hz sound wave down in the water, and detect the echo 3 seconds later what would happen if that ship sent out
    8·1 answer
  • What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s?
    11·1 answer
  • When we look into the sky every day we get to see the results of all the behaviors of waves. The blue color of the sky results f
    13·1 answer
  • What happens to the molecules of water when it moves from a liquid to a gas?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!