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During heavy rain, a rectangular section of a mountainside measuring 2.7 km horizontally, 0.85 km up along the slope, and 2.5 m deep suddenly slips into a valley in a mud slide. Assume that the mud ends up uniformly distributed over a valley section measuring 0.40 km 0.40 km and that the mass of a cubic meter of mud is 1900 kg. What is the mass of the mud sitting above an area of 4.0 m2 in that section?
A child's toy consists of a piece of plastic attached to a spring, estimate the force constant of the spring
Two speakers face each other and radiate coherently and in phase. The speakers are separated by a distance of 5.50 m, What is the wavelength of the sound
Four positively charged particles enter magnetic field as shown. What would be the path of each particle in the field
For a science fair competition, a group of high school students build a kicker-machine that can launch a golf ball from the origin with a velocity of 37.5 m/s and initial angle of 38.4° with respect to the horizontal.
For a series RLC circuit with resistance 5 KOhm, capacitance 100 picoFarad, and inductance 0.025 Henry, what are the natural and the free oscillation mode frequencies
If, on other hand, she first kicks it to player 2, who then kicks it into the net, the ball undergoes two successive displacements, y and x. What are the magnitude and direction of x and y.
The K-shell ionization energy of titanium is 4969 eV. The L-shell ionization energy is 462 eV. Determine the wavelength of the Kalpha emission line of titanium
Giancoli, page 30 --when they say that x-xo increases with the square of the initial speed. Why do they say square of initial speed only, what about square of final speed? And why do they ignore that the distance also decreases by a factor of 2.
A hammer taps on the end of a 4.00-m-long metal bar at room temperature. What is the speed of sound in this metal
A 25.0 g object moving to the right at 17.0 cm/s overtakes and collides elasticity with a 7.0 g object moving in the same direction at 15.0 cm/s. find the velocity of each object after the collision
Consider a 7 solar mass main sequence star, Estimate its luminosity in solar luminosities and how long (in years) it could maintain its luminosity through gravitational collapse
Life scientists use ultracentrifuges to separate biological components or to remove molecules from suspension. Samples in a symmetric array of containers are spun rapidly about a central axis.
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