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Suppose a 10 kg mass is hung from the end of a vertical oriented, massless spring. If the spring stretches 10 cm, what is the spring constant of the spring? 2) A 1- kg mass is placed at the end of a vertically oriented, massless spring. When the spring is stretched and let go, the mass at the end of the spring oscillates with a period of 2 seconds. What is the spring constant of the spring?
consider two blocks of wood, one having mass of 1 kg and the other having a mass of 2 kg. What is the net force of the bottom block
During a crash test, a car moving at 60 km/ hr collides with a rigid barrier and comes to a complete stop in 200 ms.
A mass M of a liquid at a temperature T1 is mixed with an equal mass of the same liquid at a temperature of T2. The system is thermally insulated. If C is themperature-independent specific heat of that liquid
A 54.5 g ice cube, initially at 0°C, is dropped into a Styrofoam cup containing 363 g of water, initially at 21.2°C. What is the final temperature of the water
Two blocks each of mass m = 3.70 kg are fastened to the top of an elevator, If the strings can withstand a maximum tension of 92.0 N, what maximum acceleration can the elevator have before the upper string breaks
Two point charges, +5.0 µC and ?2.0 µC, are separated by 4.0 m. What is the electric potential energy
In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. Calculate the capacitance before the key is depressed
A rod of mass m and radius R rests on two parallel rails that are a distance d apart have a length L. what is the speed of the rod as it leaves the rails
A solenoid has a cross-sectional area of 7.0 x 10-4 m2, consists of 430 turns per meter, and carries a current of 0.52 A. Find the average current induced in the coil
A 220g baseball is pitched at 25m/s spinning at 43rad/s. What fraction of its kinetic energy is rotational
Obtain a relation between the equilibrium lattice distance
The Stanford Linear Accelerator can accelerate electrons to energies of 50 GeV. What is their de Broglie wavelength? Recalling that waves can only probe structure as small as their wavelength divided by 2, what fraction of a proton’s diameter (d = 2 ..
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