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What is the change in internal energy (in J) of a system that absorbs 0.535 kJ of heat from its surroundings and has 0.362 kcal of work done on it
Using the electric field described in the alpha cannon simulation, suppose that an alpha particle is fired upward from a height y = 0 m, What is the horizontal distance traveled by the particle
Show that for the adiabatic reversible expansion of an ideal gas, T1^(Cv/R)V1 = T2^(Cv/R)V2
a metal airplane flies horizontally at 200. m/s where the Earth's magnetic fiels is vertical and is 45.0uT. If the wingspan is 25.0 meters. what emf is induced across the wings
Determine the pH change when 0.112 mol KOH is added to 1.00 L of a buffer solution that is 0.394 M in CH3COOH and 0.246 M in CH3COO-. Determine the pH change when 0.095 mol HI is added to 1.00 L of
Water flowing through a garden hose of diameter 2.73 cm fills a 21.0-L bucket in 1.60 min. find the speed of the water leaving the end of the hose
When a sample of benzoic acid was burned in a bomb calorimeter having a calorimeter constant of 12.5 kJ/oC, the temperature of the calorimeter (including its contents) rose from 23.18oC to 27.65oC.
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
Assume the eccentric professor has a daily special request for her coffee. She likes to have the 250.0 mL of coffee frozen at -15.0°C overnight and then want it heated to 95°C when she gets
Two fun-loving otters are sliding toward each other on a muddy (and hence frictionless) horizontal surface. One of them, of mass 8.00kg, How much mechanical energy dissipates during this play
A magnetic field of 3 Tesla is oriented into the page. A 10 cm long conducting bar is pulled to the right at a constant speed of 3.4 m/s. What is the magnitude of the current in the bar
the temperature of the calorimeter (including its contents) rose from 23.18oC to 27.65oC. What mass, in g, of benzoic acid was burned. here is what i did, 3226/122.13=26.41 delta t =4.474 so 4.474*1
0.100kg stone rests on a frictionless, horizontal surface. A bullet of mass 9.00g , find the magnitude of Daniel's velocity after the collision
What is the specific heat constant if 621 g of Metal A raises the temperature of water by 3.20°C and releases 1.20 kJ of heat
How many moles of H3O+ must be added to 170 mL of a solution to adjust the pH from 7.84 to 6.27? Use E notation and 3 significant figures.
what is the [OH-] in a solution that has a pOH of 2.70? Use E notation with 3 significant figures.
A magnetic field of 3 Tesla is oriented into the page. A 10 cm long conducting bar is pulled to the right at a constant speed of 3.4 m/s. What is the power supplied by the person pulling the bar
An object is moving along a straight line and the uncertainty in its position is 1.5 m. Find the minimum uncertainty in the momentum of the object
200.0 g Al (C = 0.900 ) at 95°C is added to 85.4 g H2O at 25°C. What is the final temperature of the water (and the Al)
A baseball pitcher (m = 81 kg) is initially standing at rest on an extremely slippery, icy surface. What is the recoil velocity of the pitcher
A certain weak base has a Kb of 7.40 × 10-7. What concentration of this base will produce a pH of 10.11
The Ka of a monoprotic weak acid is 2.99 × 10-3. What is the percent ionization of a 0.108 M solution of this acid
Suppose you are planning a trip in which a spacecraft is to travel at a constant velocity for exactly ten months, how fast must you travel
Joe is moving through space at an unknown speed. His clock runs 4 minutes per hour slower than Jane's clock, How fast is Joe moving
Calculate the pH of the resulting solution after the following volumes of HNO3 have been added. (e) 50.0 mL (f) 100.0 mL Show the work please