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A 34.0 kg hammer strikes a steel spike 2.20 cm in diameter while moving with speed of 22.0 m/s. The hammer rebounds with speed 11.0 m/s after 0.110 s. What is the average strain in the spike during the impact?
A spool whose inner core has a radius of 1.00 cm and whose end caps have a radius of 1.50 cm has a string tightly wound around the inner core. what is the speed of the spool
The ratio of the average acceleration values is a1/a2 = 1.24. Find out the velocity of the car at the end of the initial ten-second interval.
a cicuit with a 112.0 m aluminum wire, with a diameter of 0.182 mm, what is the potential difference applied to the circuit after the wire is cooled
q1. in the atwood machine shown below m1 2.00 kg and m2 8.00 kg. the masses of the pulley and string are negligible
The proper length of one spaceship is 2.8 times that of another. The two spaceships are travelling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to be the same length.
A 234.0 g piece of lead is heated to 86.0oC and then dropped into a calorimeter containing 611.0 g of water that initally is at 24.0oC. find the final equilibrium temperature (in oC) of the lead and water
The rms speed of the molecules in 1.8 of hydrogen gas is 1600 m/s. What is total translational kinetic energy of the gas molecules.
A 4.5- kg box of books is pulled up a 3.66- m-long inclined plank to a height of 1.4 m. What percent of the work is lost to friction
A truck of mass 9312 kg moving at a speed of 68.7 mph has lost its brakes. How far along the incline (?x) does the truck travel before it stops
A car moving at 10.0 m/s encounters a bump that has a circular cross-section with a radius of 30.0 m. when the car is at the top of the bump
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0618 s, obtain the vertical components of the launch velocity
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 x 10^-46 kg*m^2. What is the maximum rotational kinetic energy in eV of the molecule?
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