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A 60.0 g object connected to a spring with a force constant of 45.0 N/m oscillates on a horizontal, frictionless surface with an amplitude of 6.00 cm. Find the total energy of the system.
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.415 grams of iron and 13.2 mL of 0.538M copper(II) sulfate react to form as much product as possible, how many millimoles (mmol) o
At 0 C, the volume of the gas is 361 mL. To what temperature must the gas be heated to occupy a volume of 492 mL?
You tie the other end to a point a distance L from the pulley so that the string is horizontal between this point and the pulley. The string has a linear mass density of 0.0470 kg/m. If you want the
Find the work she does on the flight bag. Find the work done by the force of friction on the flight bag. Find the coefficient of kinetic friciton between the flight bag and the floor.
Use conservation of energy to determine the angular speed of the spool. After the 3.00 bucket has fallen 3.65 meters, starting from rest. The light sting attached to the bucket is wrapped around the
A 126 piece of metal is heated to 285 and dropped into 83.0 of water at 26. If the final temperature of the water and metal is 58.3, what is the specific heat of the metal?
If 18.0mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia?
If 1.50 g of X reacts with 3.54 g of M to produce 5.04 g of a compound with the formula M4X3 and the atomic mass of M is 48.5 amu, what is the atomic mass of X?
When a 1.50 g sample of aluminum metal is burned in an oxygen atmosphere, 2.83 g of aluminum oxide are produced. However, the combustion of 1.50 g ultrafine aluminum in air results in 2.70 g of a p
A bungee jumper with mass 68.0 jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 49.0 . He finally comes to rest 23.0 belo
Calcium sulfide has a face-centered cubic unit cell with calcium ions in octahedral holes. If the radius of sulfide ion is 184pm and the density of CaS is 2.60 g/cm3, what is the radius of the calc
A 1.00 g sample of enriched water, a mixture of H2O and D2O, reacts completely with Cl2 to give a mixture of HCl and DCl. The HCl and DCl were then dissolved in pure H2O to make a 1.00 L solution. A
Calculate the molecular rms speeds of He atoms at 10, 100, 1000 K in units of meters per second and miles per hour.
A curve with a 125 m radius on a level road is banked at the correct angle for a speed of 20 {rm m/s}.If an automobile rounds this curve at 30 {rm m/s}, what is the minimum coefficient of static fri
The absorption spectrum of chlorophyll a has maxima at 663 and 420 nm. What colors correspond to these wavelengths? What color will be seen reflected by an object with this absorption spectrum?