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
Zina [86]
3 years ago
10

What is the wavelength of an earthquake wave if it has a speed of 9 km/s and a frequency of 2 Hz?

Physics
1 answer:
ira [324]3 years ago
7 0
<span>2.56 sec (t=1/0.39)
f=3.9/10</span>
You might be interested in
A 27-g steel-jacketed bullet is fired with a velocity of 640 m/s toward a steel plate and ricochets along path CD with a velocit
Dmitry [639]

Answer:

F = - 3.56*10⁵ N

Explanation:

To attempt this question, we use the formula for the relationship between momentum and the amount of movement.

I = F t = Δp

Next, we try to find the time that the average speed in the contact is constant (v = 600m / s), so we say

v = d / t

t = d / v

Given that

m = 26 g = 26 10⁻³ kg

d = 50 mm = 50 10⁻³ m

t = d/v

t = 50 10⁻³ / 600

t = 8.33 10⁻⁵ s

F t = m v - m v₀

This is so, because the bullet bounces the speed sign after the crash is negative

F = m (v-vo) / t

F = 26*10⁻³ (-500 - 640) / 8.33*10⁻⁵

F = - 3.56*10⁵ N

The negative sign is as a result of the force exerted against the bullet

6 0
2 years ago
Barometers have long been used to predict the weather. Jay and Jeff were responsible for recording the class weather data each d
AfilCa [17]

Answer:

B

Explanation:

You would have rain. You would have clouds, precipitation, and strong winds.

4 0
3 years ago
Read 2 more answers
8. Volcanoes that are mostly made up of pyroclastic material are called?
djyliett [7]

Answer:

I think it is Cinder Cone volcano.

6 0
3 years ago
What variables can affect the number of books sold by a door to door salesperson
Elden [556K]
Clothing, Fitness, Age, Size, price, sales training. language skills, variety, area

8 0
3 years ago
Read 2 more answers
A certain moving electron has a kinetic energy of 1.01 × 10−19 J. Calculate the speed necessary for the electron to have this en
insens350 [35]

Answer:

Velocity of electron will be equal to v=4.711\times 10^5m/sec

Explanation:

We have given kinetic energy of electron KE=1.01\times 10^{-19}J

Mass of electron m=9.1\times 10^{-31}kg

We have to find velocity of electron

Kinetic energy of electron is equal to KE=\frac{1}{2}mv^2, here m is mass and v is velocity

So 1.01\times 10^{-19}=\frac{1}{2}\times 9.1\times 10^{-31}\times v^2

v=4.711\times 10^5m/sec

So velocity of electron will be equal to v=4.711\times 10^5m/sec

5 0
3 years ago
Other questions:
  • 22) What is the difference between the plasma and gaseous states of matter?
    10·1 answer
  • What are some ways houses along the coastlines can protect themselves from storm surges?
    14·1 answer
  • Redshift means stars and galaxies are emitting a color that is shifting toward the red end of the color spectrum. this indicates
    5·2 answers
  • Explain how power and work are related
    6·2 answers
  • What is the velocity of an object that has a momentum of 4,000 kg-m/s and a mass of 115 kg? Round to the nearest hundredth.
    5·2 answers
  • Two 2.0kg bodies A and B collide The velocities before the collision are U1=15i+30j and U2=-10j+5.0j After the collision V1=-5.0
    5·1 answer
  • What will happen to the brightness of a string of bulbs hooked up in series when you increase the number of bulbs in the string?
    7·1 answer
  • What is a magnetic wave?
    5·2 answers
  • Meeta used an elastic tape to measure the length of her window to stitch a curtain. Do you think she will be able to stitch a cu
    15·1 answer
  • I WILL GIVE U A BRAINLIEST
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!