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Question: A rock is dropped into a hole 11.40 m deep. The speed of sound is 340 m/s.
Part A: How many seconds later will the sound of striking the bottomed are heard?
Explain the each and every step in detail for help.
the membrane that surrounds a certain type of living cell has a surface area of 7.1 x 10-9 m2 and a thickness of 1.6 x
in an eye that is farsighted the eye focuses parallel rays so that the image would form behind the retina. in an eye
A 0.33 kg softball has a velocity of 19 m/s at an angle of 34° below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball
A spring with an unstrained length of 0.071 m and a spring constant of 1.5 N/m hangs vertically downward from the ceiling. What is the magnitude of the external electric field
Suppose traffic investigators determined from the skid marks that two cars came to rest with a displacement of 9.72m at 72 degrees N of E, and the coefficient of friction was 0.72. The red car had a mass of 1000kg but the blue cars mass was 1300kg..
A small rock is found orbiting an asteroid at a distance of 150,000 meters and with an orbital period of 12,000 seconds. Compute the mass of the asteroid. The constant is 6.67 x10-11m 3/kgs2.
A +6.4 µC charge is placed at the origin and a -3.3 µC charge is placed at x = 25 cm. At what coordinates can a third charge be placed
a cd has a playing time of 47.4 minutes. when the music starts the cd is rotating at an angular speed of 512
The drill bit of a variable-speed electric drill has a constant angular acceleration of 3.15 rad/s2. The initial angular speed of the bit is 5.95 rad/s. what is the bit's angular speed
A 19 kg crate is at rest on alevel surface. If the coefficient of static friction between thecrate and the surface is 0.48, what horizontal force is required to get the crate moving? In N.
Suppose a 100m diameter stony (p= 3 g/cm^3) meteroid impacts the Earth with a speed of 20km/s. Assume all kinetic energy goes into the creation of an atmospheric blast wave.
A suitcase full of gold sits at the bottom of a lake. A recovery diver finds that as he lifts the suitcase to the surface, What is the volume of the large suitcase
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