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A 10 kilogram block is placed on an ideal vertical spring that has been compressed 20 centimeter from its equilibrium length. The spring has a spring constant, k =4500 N/m. When the spring is released:
Find the speed of the block as it leaves the spring?
Find the maximum height the block achieves above the end of the spring?
Joey weighs 77 lb and sits on a seesaw at a distance of 30 inches from the fulcrum. Jenny weighs 67 lb and sits on the opposite side of the seesaw at a distance of 48 inches from the fulcrum. how far away from the fulcrum should he sit
Three resistors having resistances of R1 = 1.53?, R2 = 2.37?, and R3 = 4.73?respectively, are connected in parallel to a 28.3 V battery that has negligible internal resistance. Find the equivalent resistance of the combination
An 9.00-cm-diameter, 390g sphere is released from rest at the top of a 1.50-m-long, 15.0 degree incline. find the sphere's angular velocity at the bottom of the incline
One of the contests at the school carnival is to throw a spear at an underwater target lying flat on the bottom of a pool. The water is 1.2 m deep. At what angle below horizontal should you throw the spear in order to hit the target
The rms speed of the molecules of a gas is 200 m/s at a temperature 300 K. What is the rms speed of the molecules at 500 K
a uniformly charged sphere has a potential on its surface of 450 v. at a radial distance of 9.2 m from this surface the
q1. a spring with spring constant 14 hangs from the ceiling. a ball is attached to the spring and allowed to come to
The average depth of oceans is about 4km, the oceans cover abou 70% of earths suface. Make an order of nagnitude estimate of the waters volune in he ocean.
Two cars of 2000 kg each collide head-on while traveling at 75.0 miles per hour. What is the temperature increase of the cars
Two equal point charges of magnitude 4.0 ?C are situated along the x-axis at x1 = -2.0 m and x2 = -2.0 m. What is the electric potential energy of this system of charges
A long, straight wire carries a current of 2.70 A. An electron is traveling in the vicinityof the wire. At the instant when the electron is 4.44 cm from the wire and traveling with a speedof 7.00 104 m/s parallel to the wire inthe direction opposit..
Calculate the longest wavelengths for light in the Balmer, Lyman, and Brackett series for hydrogen
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