Intensity of a particular earth quake wave

Reference no: EM13654141

The intensity of a particular earth quake wave is measured to be9.0*10⁶ J/m²·s at adistance of 49 km from the source.

a) What was the intensity when it passed a point only4.0 km from the source?
b) What was the rate energy passed through an area of 9.0 m² at 4.0km?

Reference no: EM13654141

Questions Cloud

Collision the object of unknown mass has a velocity : A 4 kg object moving at 17 m/s in the positive x direction has aone-dimensional elastic collision with an object initially at rest. After the collision the object of unknown mass has a velocity of 30 m/s in the positive xdirection. What is the unk..

Determine the revenue formula using linear regression : Labrie Hospital wants to analyze its revenue per patient day. A "patient day" is one patient staying for one day. The following information has been provided to you: Determine the revenue formula using linear regression.

A horizontal board weighing : A horizontal board weighing 232.0 Nis supported at points A and B in the figure below. The plankserves as a platform for a painter, who weighs 571.0 N. Find the maximum distance D, such that the plank will not tip, no matter where the painter stands...

Perpendicular to the direction of a magnetic field : The plane of a rectangular coil, 6.0 cm by9.0 cm, is perpendicular to the direction of a magnetic field vector B . If the coil has 100 turnsand a total resistance of 8.0 Ω, at what rate must the magnitude of vector B change to induce a current of0.10..

Intensity of a particular earth quake wave : The intensity of a particular earth quake wave is measured to be9.0*106 J/m2·s at adistance of 49 km from the source.

Problem of single pane window : A single pane window is 25mm thick. It measures 1.2 m by 2.5m One side of the window is 25 o C and theother side is -22 o C How much heat is lost through the window in 24 hours? Kglass = .84J/kgoC

Direction of the velocity of the interlocked vehicles : Two vehicles A & 13 are traveling west and south, respectivelytoward the same direction where they collide and lock together.Before the collision A (total weight 900lb) is moving with a speedof 40mi/h and B (1200 lb) has a speed of 60 mi/h.

Average frictional force exerted on the skateboarder : Suppose the skateboarder shown in the drawing reaches a height of2.30 m above the right side of the semicircular ramp. He then makesan incomplete midair turn and ends up sliding down the right sideof the ramp on his back. When the skateboarder rea..

Find change in kinetic energy of system consisting of car : An sub with a mass of 1800 kg is traveling eastbound at 17 m/swhile a compact car with mass of 900 kg is traveling westbound witha speed of 15 m/s the cars collide head-on becoming entangled.

User Account

All Pages