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
olganol [36]
3 years ago
14

How many magnitude 8 earthquakes does it take to equal the energy release for a magnitude 9 earthquake?

Physics
1 answer:
WINSTONCH [101]3 years ago
8 0
The popular Richter scale for measuring the magnitude of earthquakes is based on a log₁₀ scale.
Therefore, a magnitude 9 earth quake is 10 times a magnitude 8  earthquake.

That is, it takes ten magnitude 8  earthquakes to equal the energy released by one magnitude 9 earthquake.

Answer: 10
You might be interested in
If the elevation in reservoir b is 100m, what must the elevation in reservoir a be if thevolume flow rate through the cast-iron
Zinaida [17]

The elevation in reservoir  at  the rate of flow using is 03m/s  is 114m.

The Reynolds range is the ratio of inertial forces to viscous forces. The Reynolds variety is a dimensionless variety used to categorize the fluids structures in which the impact of viscosity is crucial in controlling the velocities or the flow sample of a fluid.

The reason of the Reynolds number is to get a few experience of the relationship in fluid glide between inertial forces (this is those that maintain going by using Newton's first law – an item in motion stays in movement) and viscous forces, this is people who cause the fluid to come back to a forestall because of the viscosity of the fluid.

calculation,

Let L = 100 m pipe

     L1 = 150 m pipe

H f = friction losses

Using Reynolds number, relative  roughness, friction co- effiicients and friction losses

Substitute the value in equation

Z = 110= 0.48= 3.54

Z = 114m

Therefore water surface elevation at reservoir  is 114 meter.

Learn more about rate of flow here:-brainly.com/question/21630019

#SPJ4

6 0
1 year ago
Lifting a piano into a truck is an example of doing negative work. A. True B. False
Elis [28]

Answer:

False

Explanation:

5 0
2 years ago
The power lines are at a high potential relative to the ground, so there is an electric field between the power lines and the gr
Amanda [17]

Answer:

The tube should be held vertically and perpendicular to the ground.

Explanation:

Answer: The tube should be held vertically and perpendicular to the ground. The reason is as follows:

Reasoning:

The power lines are parallel to the ground hence, their electric field will be perpendicular to the ground and equipotential surface will be cylindrical.

Hence, if you will put fluorescent tube parallel to the ground then both the ends of the tube will lie on the same equipotential surface and the potential difference will be zero.

So, to maximize the potential the ends of the tube must be on different equipotential surfaces. The surface which is near to the power line has high potential value and the surface which is farther from the line has lower potential value.

hence, to maximize the potential difference, the tube must be placed perpendicular to the ground.

6 0
2 years ago
4. A student measures a temperature several times. The readings lie between 29.6 and 30.2 K. This
Alona [7]

Answer:

(C) apparently written incorrectly - it should be 29.9 +- .3 K

(read 29.9 plus or minus .3 K)

8 0
2 years ago
A student wants to design an experiment to study the transformation of mechanical energy. Which object can be used to investigat
Vsevolod [243]
I guess it’s the 3rd one
7 0
2 years ago
Read 2 more answers
Other questions:
  • Select all that apply.
    14·2 answers
  • A uniform cylinder of radius 25 cm and mass 27 kg is mounted so as to rotate freely about a horizontal axis that is parallel to
    13·1 answer
  • A 5.93 kg ball is attached to the top of a vertical pole with a 2.35 m length of massless string. The ball is struck, causing it
    15·1 answer
  • An object is said to move from a position of 10m East to a position of 5m west. Determine the object's distance travelled.
    13·1 answer
  • A car traveling at 21 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?
    13·1 answer
  • A 4.0 kg box is released from rest on a frictionless ramp. The box slides from the ramp onto a rough horizontal
    5·2 answers
  • The surface tension of the alcohol propanol in air has a value of 23.70 units
    13·2 answers
  • Last one I swear, 50 points again! plz help this is schoolwork
    11·2 answers
  • Fluid of intelligent​
    6·1 answer
  • At a particular instant, a hot air balloon is 100 m in the air and descending at a constant speed of 2.0 m/s. at this exact inst
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!