Oscillation frequency of the two-block system
A block hangs in equilibrium from a vertical spring. When a second identical block is added, the original block sags by 7.00 cm.What is the oscillation frequency of the two-block system?
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A Federation starship (1.0 106 kg) uses its tractor beam to pull a shuttlecraft (1.0 104 kg ) aboard from a distance of 8 km away. The tractor beam exerts a constant force of 4.0 104 N on the shuttlecraft. Both spacecraft are initially at rest. Ho
50.0 g of KCl at 27.0 °C is dissolved in 100. mL of 27.0 °C water in a coffee cup calorimeter. What is the final temperature of the salt solution? Assume that the heat capacity of the solution is 4.184 J/g·°C
A box of textbooks of mass 24.7 kg rests on a loading ramp that makes angle a with the horizontal. The coefficient of kinetic friction is .25 and the coefficient of static friction is .37. Find the minimum angle at which the box starts to slip.
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
What volume in mL will a sample of F2 occupy in a syringe at 5.5 atm , if the F2 has a volume of 25.0 mL at 1.2 atm?
An ac generator has a frequency of 2.4 kHz and a voltage of 240 V. An inductance L1 =6.0 mH is connected across its terminals. Then a second inductance L2 =10 mH is connected in parallel with L1. Find (a) the current that the generator delivers to
A buffer consists of 0.22 M Na2HPO4 and 0.2 M Na3PO4. Given that the K values for H3PO4 are, Ka1 = 7.2 x 10-3, Ka2 = 6.3 x 10-8, and Ka3 = 4.2 x 10-13, calculate the pH for this buffer.
The composition, composer, performer, and style Description of what you heard Discussion of your understanding of the use of rhythm, melody, harmony, tonality, texture, and form in the piece
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