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a spring has a constant k=8.75 N/m. if the spring is displaced 8.150 m from its equilibrium position, what is the force that the spring exerts?
Waves from a radio station have a wavelength of 308 m. They travel by two paths to a home receiver 77.0 km from the transmitter. What is the minimum distance from the mountain to the receiver
A 2.50 g bullet, traveling at a speed of 465 m/s, strikes the wooden block of a ballistic pendulum. The block has a mass of 275 g. What is the speed of the bullet/block combination immediately after collision.
Electrons in a photoelectric-effect experiment emerge from a copper surface with a maximum kinetic energy of 1.10 eV
A cubical piece of heat-shield tile from the space shuttle measures 0.11 m on a side and has a thermal conductivity of 0.059 J/(s m ·C°). How much heat flows from the outer to the inner surface of the tile in six minutes
A tortoise can run with a speed of 14.0 cm/s, and a hare can run 20 times as fast. In a race, What is the length of the race
A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0 g steel wire, What is the mass of the sculpture
Blocks with masses of 2.0 , 4.0 , and 6.0 are lined up in a row on a frictionless table. All three are pushed forward by a 57 N force applied to the 2kg block.How much force does the 4 block exert on the 6.0 block.
The width of the contact of each wire with your skin is 1.10 cm and the thickness of the conducting layer of your skin is 0.023 mm, calculate the resistivity of your skin
You and your surfing buddy are waiting to catch a wave a few hundred meters off the beach. The waves are conveniently sinusoidal, What is the frequency of the waves, Find the speed of the waves
During the spin-dry cycle of a washing machine, the motor speeds up from 30 rad/s to 95 rad/s, What is the magnitude of the angular acceleration of the motor
A mass m of a metal with heat capacity cm at initial temperature TM is added to the volume V of a liquid with density p, find the final temperature of the system
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6311 N when separated by 50 cm, center-to-center, What are the smaller and larger values
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