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
Westkost [7]
3 years ago
7

On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves (tsunami) that killed som

e 200000 people. Satellites observing these waves from space measured 800 kmkm from one wave crest to the next and a period between waves of 1.0 hour. Part A What was the speed of these waves in m/sm/s
Physics
2 answers:
horrorfan [7]3 years ago
5 0

Answer:

The speed of these waves is 222.22 m/s

Explanation:

A.

Since, we know that the speed of a wave is given by the formula:

v = fλ

where,

v = speed of wave

f = frequency of wave

λ = wavelength

Here,

λ = distance between consecutive wave crests

λ = 800 km = 8 x 10⁵ m

f = 1/Time Period = (1/1 hr)(1 hr/3600 s)

f = 2.77 x 10⁻⁴ s⁻¹

Therefore,

v = (2.77 x 10⁻⁴ s⁻¹)(8 x 10⁵ m)

<u>v = 222.22 m/s</u>

FromTheMoon [43]3 years ago
5 0

Answer:

Explanation:

Given that,

200,000 people where killed due to earth quake in December 2004

Satellite observing measure a wavelength of 800km crest to crest

Crest to crest implies one wavelength

λ = 800km = 800,000m

Period of One hour

T = 1 hour = 3600s

Then, we want to find speed of wave.

Using wave equation

v = fλ

Where

f is frequency in Hz

v is speed of wave in m/s

λ is wavelength in m

Where f = 1 / T

Then, v = λ / T

v = 800,000 / 3600

v = 222.22 m/s

Then, the speed of the wave is 222.22 m/s

You might be interested in
Fill in the blank below: In a _______________ digestive system, digestion takes place outside of the cells in a series of tubes.
Elina [12.6K]

Answer : Option D) Complete.

Explanation : In a complete digestive system, digestion takes place outside of the cells in a series of tubes. Food enters through one opening and food remnants exit out of a different opening. It has examples of humans, dogs, horses, spiders and earthworms. This system is complete because it does not occurs inside a cell nor it occurs in sponge kind-off organs and it is also not incomplete digestion as the waste products are removed from the other opening.

Therefore, the correct answer is option D) complete.

5 0
3 years ago
No official standard exists for extinguisher-cylinder colors. that said, a red cylinder is typically associated with which type
Lorico [155]
Fire extinguishers are typically red. Goes along with the red fire trucks and red being a color of emergency. While there isn't any standard, if we decided to change the colors of the fire extinguisher, people would be very confused and given the context, it could cost people's lives, so I'm thinking red will be the color of fire extinguishers for a while to come.
<span />
8 0
3 years ago
Calculate the missing angles in the following diagram if the index of refraction is 1.00
defon
Glad you are coming back tomorrow I am so happy to be with you guys I will
4 0
3 years ago
Two hockey pucks with mass 0.1 kg slide across the ice and collide. Before
RideAnS [48]

The velocity of pluck 1 is 12 m/s west.

<h3>What is the conservation of momentum?</h3>

The principle of the conservation of the linear momentum states that momentum before collision is equal to momentum after collision.

Now given that;

m1u1 + m2u2 = m1v1 + m2v2

(0.1 * 15) - (0.1 * 12) = 0.1* v + (0.1 * 15)

1.5 - 1.2 = 0.1v + 1.5

0.3 - 1.5 = 0.1v

v = -1.2/0.1

v = - 12 m/s

Hence, the velocity of pluck 1 is 12 m/s west.

Learn  more about linear momentum:brainly.com/question/27988315

#SPJ1

7 0
1 year ago
Which of the following is equivalent to 140 centiliters?
tekilochka [14]
D, 0.140 liters! Hang on a sec and I'll show you a trick I use.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Direction of current in a solenoid depends on the direction of magnetic field
    6·1 answer
  • If a car accelerates at a constant rate of 3m/s^2, what is the velocity of the car after 4 seconds
    11·2 answers
  • A 60-kilogram man holding a 20-kilogram box rides on a skateboard at a speed of positive 7 meters per second. He throws the box
    10·1 answer
  • I need help pls help me
    10·1 answer
  • In ultimate Frisbee players are allowed to run with the disc? T/F
    8·1 answer
  • All neutron stars are things that produce intense gravity. All neutron stars are extremely dense objects. Therefore, all extreme
    14·1 answer
  • The kinetic energy of an object depends on two factors, ___, and ___. HINT: Remember comparing the kinetic energy of the marble
    5·2 answers
  • Find the volume of an object with a density of 3.2 g/mL and a mass of 12 g.
    14·2 answers
  • A proton is projected in the positive x direction into a region of a uniform electric field →E =(-6.00 × 10⁵) i^ N/C at t=0 . Th
    11·1 answer
  • You want to average 90 km/h on a car trip. You cover the first half of the distance at an
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!