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A drop of water on a countertop reflects light from a flower held 3.10 cm directly above it. The flower's diameter is 1.70 cm, and the diameter of the flower's image is 0.13 cm. What is the focal length of the water drop, assuming that it may be treated as a convex spherical mirror?
A 4.94-g bullet is shot through a 0.99-kg wood blocksuspended on a string 2.00 m long. The center of mass of the blockrises a distance of 0.50 cm. Find the speed of the bullet as itemerges from the block if its initial speed is 393 m/s.
What speed would Michelson have computed for Earth's motion through the ether had the experiment seen a shift of one fringe
You exert a force F perpendicular to the end of the wrench with a length of 8" and the bolt does not move.
Stainless-steel poles were arranged by an artist for the purpose of producing an enhanced display of lightning in a field of nearly one square mile. Find the magnetic force on one of these poles
At what distance along the central axis of a uniformly chargedplastic disk of radius R = 1.40 m is themagnitude of the electric field equal to 1/9 times the magnitude ofthe field at the center of the surface of the disk?
A ball is attached to a center post with a string that is 0.587 m long. The ball is moving in a circle on a frictionless table top at a speed of 1.43 m/s with a radius of 0.587 m. What is the centripetal acceleration of the ball?
A coil of length l=50 cm and diameter d= 5 cm consists of N= 200 turns. there is a current I= 1 A running thru the coil. Determine: a) the inductance of coil; b) the magnetic flux flowing thru a cross sectional area of the coil.
A projectile is fired straight upward from the Earth's surface at the South Pole with an initial speed equal to one third the escape speed. What is the altitude of the projectile at this instant
in fair weather over flat ground there may be a downward electric field of 155 nc. a assume that the earth is a
A 5.0 kg hanging weight is connected by a string over a pulley to a 9.0kg block sliding on a flat table. If the coefficient of sliding friction is 0.20; what is the rate of acceleration of the system?
In the 1850s, Armand Fizeau and Jean-Bernard-Leon Foucault made the first measurements of the speed of light in water. calculate the wavelength of yellow green light in water
While a roofer is working on a roof that slants at 45.0 ° above the horizontal, he accidentally nudges his 95.0 N toolbox, causing it to start sliding downward, starting from rest.If it starts 4.60 m from the lower edge of the roof
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