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A sample of gas under a pressure of 622 kPa has a volume of 233 cm3. The pressure is increased to 988 kPa, while the temperature remains constant. What volume will the gas occupy at this pressure?
The wind exerts a force of 153 N North on a sailboat, while the water exerts a force of 81 N West on the sailboat. What is the magnitude of the net external force on the sailboat?
What is the angular velocity in rad/s? What is the angular displacement of the propeller in 1.50 s?
A 100 mL sample of a 6.0 mol/L solution of H2SO4 is diluted to a final volume of 500 mL. What is the concentration of the diluted solution?
What is the pH of 1.00L of the buffer solution that contains 0.100 M HF and 0.120 M NaF after 0.020 of HNO3 is added? The Ka of HF is 3.5 x 10-4, and so pKa = 3.46.
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, how much heat
A 8.00 m x 11.0 m swimming pool slopes linearly from a 1.00 m depth at one end to a 3.80 m depth at the other. What is the mass of the water?
What is the chemical formula for the possible precipitate? Look in your textbook for any necessary equilibrium constants.
What is the magnitude of the force on the 1.0 charge in the middle of the figure due to the four other charges?
A jogger runs 100 m due west, then changes direction for the second leg of the run. At the end of the run, she is 175 m away from the starting point at an angle of 15.0° north of west. What were
Derive an equation for the temperature dependenc of the vapor pressure of a liquid (analogous to the integrated form of the Clausius-Clapeyron equation).
A 1.0kg stone is being whirled at constant speed of 12 m/s in a circle, held on a frictionless horizontal surface by a steel wire which is horizontal. The wire is 4.0m long and its radius is 1.0mm.
A step-down transformer has 16,000 turns on the primary and 95 turns on the secondary. If the rms emf across the secondary coil is 120 V, what is the maximum emf across the primary coil?
A 140 kg horizontal beam is supported at each end. A 325 kg piano rests a fifth of the way from one end. What is the vertical force on the support closest to the piano?
The flowers of the bunchberry plant open with astonishing force and speed, causing the pollen grains to be ejected out of the flower in a mere 0.30 ms at an acceleration of 2.5×104 m/s2. With
Using the symbols alpha and beta for the two spin states, show how 4 equivalent hydrogen atoms can couple to a CH2 group leading to a quintet with peak ratios of 1:4:6:4:1.
Suppose the roller coaster in Fig. 6-38 (h1 = 40 m, h2 = 14 m, h3 = 20) passes point A with a speed of 2.00 m/s. If the average force of friction is equal to one fifth of its weight, with what speed
Why does bob continue to play the video game ever after losing $300? describe in terms of operant conditioning
A 27.0-g sample of water at 290. K is mixed with 49.0 g water at 320. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
A 95 kg clock initially is at rest on a horizontal floor requires a 650 N horizontal force to set it in motion. After the clock is in motion, a horizontal force of 560 N keeps it moving with a cons
Obtain an algebraic equation for P2 in terms of the other variables (including ‘n'). Next, obtain an expression for total work done in the process.
The total volume of the column of water in the neck is 0.200 m^3. What is the magnitude of the force exerted by the water on the bottom of the container?
Calculate the horizontal force that must be applied to a 1-kg puck to make it accelerate on a horizontal friction-free air table with the same acceleration it would have if it were dropped and fell
An athlete executing a long jump leaves the ground at a 28° angle and travels 7.8 m. What was the take-off speed? If this speed were increased by just 5.0%, how much longer would the jump be