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An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves is approximately 7.0 km/s, and that of S waves is about 4.0 km/s. Animals seem to feel the P waves. If a dog senses the arrival of P waves and starts barking 21.9 s before an earthquake is felt by humans, approximately how far is the dog from the earthquake’s epicenter?
A parallel plate capacitor has plates of area 2.0x10^-3 m^2 and a plate separation of 1.0x10^-4 m. Determine the capacitance of this system if air fills the volume between the plates.
A truck moving with a speed of 25.4 m/s strikes a parked car. During the collision the truck and car stick together and slide to a stop together. How far does the truck/car combination slide
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 18.0cm , giving it a charge of -12.0?C. Find the electric field just inside the paint layer
An inductor has inductance of 0.240H and carries a current that is decreasing at a uniform rate of 19.0mA/s. Find the self-induced emf in this inductor
One mole of an ideal gas expands from 5 to 1 atm at 25 oC. Calculate W (a) if the gas expands isothermally, (b) and if the gas expands adiabatically.
A ball is thrown 20.0 m/s at an angle of 40.0º with the horizontal. Assume the ball is thrown at ground level. How long does it take the ball to reach the wall
A submerged solid object displaces a. its own volume in the liquid. b. more than its own volume in the liquid. c. less than its own volume of liquid. I am confused with the wording. Why do they use volume instead of weight?
An ac generator with a frequency of 135Hz and an rms voltage of 20.5V is connected in series with a 11.0 kOhms resistor, What is the rms current in this circuit
On an air track, a 400.5g glider moving to the right at 2.00m/s collides elastically with a 500.5g glider moving in the opposite direction at 3.00m/s. find the velocity of the glider after the collision
question1a plane leaves the airport in galisteo and flies 170 km at 68deg east of north and after that changes
A transformer has310turns in the primary coil and130in the secondary coil. By what factor does it change the current
A Projectile is fired with an initial velocity of 60 m/s at an angle of 379 to the horizontal. Assuming there is no friction, what is the horizontal range of the projectils
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