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Spring, with a spring constant k = 150 N/m, is hung vertically from the ceiling. A 7.50 kg mass is attached to the end of the spring and then released. The mass moves downward until the spring is fully stretched, then starts to move back up as the spring begins to contract. What is the maximum distance through which the mass falls before starting to move back up?
A 41 kg person drinks 440. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake
Write the net ionic equation that shows the neutralization reaction when the strong acid or strong base is added to the buffer.
Draw the product that is formed when 1-pentyne is treated with an excess of hydrogen gas and a nickel catalyst
When a container is filled with 3.00 mol of H2 , 2.00 mol of O2 , and 1.00 mol of N2 , the pressure in the container is 465 kPa. The partial pressure of O2 is ?
A box of mass 5.0 kg if accelerated from rest across a floor at a rate of 2.0 m/s2 fro 7.0s find the net work done on the boxCopy and paste your question here...
If 25 mL of 0.1 M HNO3 is added to a 0.01 L buffer solution that is 0.26 M HCNO and 0.13 NaCNO, what is the pH of the final solution? Ka for HCNO = 3.5x10^-4
How much heat (in kJ) is evolved in converting 1.20 mol of steam at 134.0°C to ice at -55.0°C.
question an unknown mass of each of the following substances initially at 24.0 c absorbs 1920 j of heat. the final
Question- What is the product formed when excess aqueous NaOH is added to a solution containing each of the following ions
The half-life of Co-60 is 5.27 years. How long will it take for the radioactivity of a sample of cobalt-60 to diminish to 3% of its initial value
For the elementary process below, the activation energy is 27 kJ/mol and the enthalpy change is -20 kJ/mol. What is Ea for the reverse process, in kJ/mol
Suppose a mixture of 4.0 moles of O2 and 2.0 moles of H2 is placed in a sealed evacuated container made of a perfect insulating material at 25 degrees Celsius. The mixture is ignited with a spark also it reacts to form liquid water. Determine the ..
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