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1) A 25.0 mL sample of a .290 M solution of aqueous trimethylamine is titrated w

1) A 25.0 mL sample of a .290 M solution of aqueous trimethylamine is titrated with a .363 M solution of HCl. Calculate the pH of the solution a) after 10.0 mL of acid have been a…

1) A 25.0-mH inductor is connected in series to a 20.0-? resistor through a 15.0

1) A 25.0-mH inductor is connected in series to a 20.0-? resistor through a 15.0-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the time constant of t…

1) A 250 mA current flows through a circular arc that subtends 130 degrees at th

1) A 250 mA current flows through a circular arc that subtends 130 degrees at the center point P. The radius of the arc is 3.48 m. What is the strength of the magnetic field at th…

1) A 280. g aluminum engine part at an initial temperature of 26.0 A 280. g alum

1) A 280. g aluminum engine part at an initial temperature of 26.0 A 280. g aluminum engine part at an initial temperature of 26.0 degree C absorbs 4.58 kJ of heat. What is the fi…

1) A 3.0 %u03BC C charge is at the center of a cube 9.5 c m on each side. What i

1) A 3.0%u03BC Ccharge is at the center of a cube 9.5cm on each side. What is the electric flux through one face of the cube? 2) A 10-nC point charge is located at the center of a…

1) A 3.0 cm × 6.0 cm rectangle lies in the x z -plane. Part A What is the magnit

1) A 3.0 cm × 6.0 cm rectangle lies in the xz-plane. Part A What is the magnitude of the electric flux through the rectangle if E =(110^200k^)N/C? Part B What is the magnitude of …

1) A 3.0 cm × 6.0 cm rectangle lies in the x z -plane. Part A What is the magnit

1) A 3.0 cm × 6.0 cm rectangle lies in the xz-plane. Part A What is the magnitude of the electric flux through the rectangle if E =(110^200k^)N/C? Part B What is the magnitude of …

1) A 3.00 kg Mass with an initial velocity of 5.00i m/s collides with and sticks

1) A 3.00 kg Mass with an initial velocity of 5.00i m/s collides with and sticks to a 2.00 kg mass with an initial velocity of -3.00j m/s. Find the final velocity of the complete …

1) A 3.15 x10^-6 M solution of an iodine solution was measured in a 1.00 cm cell

1) A 3.15 x10^-6 M solution of an iodine solution was measured in a 1.00 cm cell to have an absorbance of 0.267 at 635 nm. A blank solution in this cell had an absorbance of 0.019…

1) A 3300-pF capacitor is connected in series to a 43.0-H coil of resistance 7.3

1) A 3300-pF capacitor is connected in series to a 43.0-H coil of resistance 7.30 . A)What is the resonant frequency of this circuit? 2) The variable capacitor in the tuner of an …

1) A 4.00L flask contains 2.33g of helium at 1520 mm Hg. What is the temperture

1) A 4.00L flask contains 2.33g of helium at 1520 mm Hg.  What is the temperture of the gas? Show all work a)24.3K b)41.8K c)127K d)167 e)1.27x105K 2) A flask is filled with 70.0g…

1) A 4.0kg cart on a level ground is pulled with a horizontal spring that\'s str

1) A 4.0kg cart on a level ground is pulled with a horizontal spring that's stretched 2.0cm from its equilibrium length. The spring constant of the spring is 100N/m. The cart move…

1) A 4.25-kg block is sent up a ramp inclined at an angle = 36.5° from the horiz

1) A 4.25-kg block is sent up a ramp inclined at an angle = 36.5° from the horizontal. It is given an initial velocity v0 = 15.0 m/s up the ramp. Between the block and the ramp, t…

1) A 4.25-kg block is sent up a ramp inclined at an angle = 36.5° from the horiz

1) A 4.25-kg block is sent up a ramp inclined at an angle = 36.5° from the horizontal. It is given an initial velocity v0 = 15.0 m/s up the ramp. Between the block and the ramp, t…

1) A 4.80-kg watermelon is dropped from rest from the roof of a 22.0-m -tall bui

1) A 4.80-kg watermelon is dropped from rest from the roof of a 22.0-m -tall building and feels no appreciable air resistance. Just before it strikes the ground, what is the water…

1) A 40 kg hay bale is lifted to a height of 30 meters and then released to fall

1) A 40 kg hay bale is lifted to a height of 30 meters and then released to fall freely. What are the potential energy and kinetic energy at 13 meters above the ground? Potential …

1) A 41-kg girl is bouncing on a trampoline.During a certain interval after leav

1)   A 41-kg girl is bouncing on a trampoline.During a certain interval after leaving the surface of thetrampoline, her kinetic energy decreases to 150 J from 490 J. Howhigh does …

1) A 42.0 mL sample of 0.108 M HNO2 is titrated with 0.258 M KOH. (Ka for HNO2 i

1) A 42.0 mL sample of 0.108 M HNO2 is titrated with 0.258 M KOH. (Ka for HNO2 is 4.57×104.) Determine the pH at the equivalence point for the titration of HNO2 and KOH. 2) Two 27…

1) A 45.9g sample of metal is heated to 95.5 Degrees Celsius and then placed in

1) A 45.9g sample of metal is heated to 95.5 Degrees Celsius and then placed in a calorimeter containing 120.0 g of water (c=4.18 J/g`C) at 21.6 degrees celcius. The final tempera…

1) A 4kg mass rests on a tabletop and is attached to a spring with the spring co

1) A 4kg mass rests on a tabletop and is attached to a spring with the spring constant 100N/m. The other end of the spring is clamped to the table such that the spring is in horiz…

1) A 5 m long pipe with one open and closed end is 30cm in diameter and has a 25

1) A 5 m long pipe with one open and closed end is 30cm in diameter and has a 25 g string tied across its open end.  The fifth harmonic resonance (the third allowed) in the pipe's…

1) A 5 m long pipe with one open and closed end is 30cm in diameter and has a 25

1) A 5 m long pipe with one open and closed end is 30cm in diameter and has a 25 g string tied across its open end.  The fifth harmonic resonance (the third allowed) in the pipe's…

1) A 5.0 kg wad of putty drops vertically onto a cart with a mass of 10.0 kg tha

1) A 5.0 kg wad of putty drops vertically onto a cart with a mass of 10.0 kg that is moving horizontally at 5.0 m/s. What is the speed of the cart with the putty? 2) A 1.0 kg dart…

1) A 5.0 kg wad of putty drops vertically onto a cart with a mass of 10.0 kg tha

1) A 5.0 kg wad of putty drops vertically onto a cart with a mass of 10.0 kg that is moving horizontally at 5.0 m/s. What is the speed of the cart with the putty? 2) A 1.0 kg dart…

1) A 5.00 kg ball is traveling at 4.0 m/s and strikes a wall. The ball bounces o

1) A 5.00 kg ball is traveling at 4.0 m/s and strikes a wall. The ball bounces off the wall with a velocity of 4.0 m/s in the opposite direction. If the contact with the wall by t…

1) A 5.00 kg piece of wood slides on the surface shown in the figure to the righ

1) A 5.00 kg piece of wood slides on the surface shown in the figure to the right. The curved sides are perfectly smooth, but the rough horizontal bottom is 30 m long and has a ki…

1) A 5.00-g bullet is fired horizontally into a 1.50-kg wooden block resting on

1) A 5.00-g bullet is fired horizontally into a 1.50-kg wooden block resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.20. The bu…

1) A 50 Hz, 3.75 MVA, 3.18 kV, three-phase synchronous generator with rated curr

1) A 50 Hz, 3.75 MVA, 3.18 kV, three-phase synchronous generator with rated current of In = 682 A has open- and short-circuit characteristic listed in Table 1 and Table 2 respecti…

1) A 50 g block is released from rest and slides down a frictionless track that

1) A 50 g block is released from rest and slides down a frictionless track that begins 1.2 m above the horizontal, as shown in the figure. At the bottom of the track, where the su…

1) A 50.0 g glass container contains 200 g of water all at 20.0°C. A 20.0 g piec

1) A 50.0 g glass container contains 200 g of water all at 20.0°C. A 20.0 g piece of an alloy at 100°C is added to the water in the container. The final temperature of the mixture…

1) A 50.0 gram sample of water is heated from 21.5 degrees C to 26.21 degrees C.

1) A 50.0 gram sample of water is heated from 21.5 degrees C to 26.21 degrees C. How many Joules of heat were added to this solution? 2) A 15.25 gram sample of copper initially at…

1) A 50.0 gram sample of water is heated from 21.5 o C to 26.21 o C. How many Jo

1) A 50.0 gram sample of water is heated from 21.5 oC to 26.21 oC. How many Joules of heat were added to this solution? 2) A 15.25 gram sample of copper initially at 92 degrees is…

1) A 50.0 kg block is moving up theincline that is sloped upward and to the left

1)      A 50.0 kg block is moving up theincline that is sloped upward and to the left.   Theincline is angled at 30 degrees to the horizontal. Thecoefficient of kinetic friction i…

1) A 500 kg mass is released at rest from a distance of two Earth radii above th

1) A 500 kg mass is released at rest from a distance of two Earth radii above the surface of the Earth. Find the speed of the mass when it has fallen to a distance of one radius a…

1) A 50kg crate is pulled 40m along a horizontal floor by a constant force exert

1) A 50kg crate is pulled 40m along a horizontal floor by a constant force exerted by a person Fp= lOON, which acts at a 37o angle as in the picture below. 1f the velocity is cons…

1) A 52.0-kg woman wearing high-heeled shoes is invited into a home in which the

1) A 52.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. The heel on each shoe is circular and has a radius of 0.520 cm. …

1) A 52.0-kg woman wearing high-heeled shoes is invited into a home in which the

1) A 52.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. The heel on each shoe is circular and has a radius of 0.520 cm. …

1) A 520-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended fro

1) A 520-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00-m-long, uniform, 110-N rod as indicated in the figure below. The left end of t…

1) A 58kg sprinter, starting from rest, runs 55m in 7.8s at constant acceleratio

1) A 58kg sprinter, starting from rest, runs 55m in 7.8s at constant acceleration. A) How much work does the sprinter do during the first 2.5s of his run? B) How much work does th…

1) A 5kg block issuspended by a rope from the ceiling of an elevator as the elev

1) A 5kg block issuspended by a rope from the ceiling of an elevator as the elevatorstarts from rest and accelerates downward at 3.0m/s^2 a) The force from the rope on the block i…

1) A 6 kg box is pulled across a rough floor by a rope. There is a friction betw

1) A 6 kg box is pulled across a rough floor by a rope. There is a friction between the box and the floor. The tension in the rope is T = 5N. Consider a time interval during which…

1) A 6-V battery is connected to an RC circuit (R = 16 ? and C = 4.1 ?F). If the

1) A 6-V battery is connected to an RC circuit (R = 16 ? and C = 4.1 ?F). If the capacitor is initially uncharged, what is the current in the circuit immediately after the connect…

1) A 6-V battery is connected to an RC circuit (R = 16 ? and C = 4.1 ?F). If the

1) A 6-V battery is connected to an RC circuit (R = 16 ? and C = 4.1 ?F). If the capacitor is initially uncharged, what is the current in the circuit immediately after the connect…

1) A 60 kg boy and a 40 kg girl, both wearing skates face each other at rest on

1) A 60 kg boy and a 40 kg girl, both wearing skates face each other at rest on a frictionless ice surface.  The boy then pushes the girl away, sending her eastward with a speed o…

1) A 60.0 mL sample of 0.18 M HClO 4 is titrated with 0.27 M LiOH. Determine the

1) A 60.0 mL sample of 0.18 M HClO4 is titrated with 0.27 M LiOH. Determine the pH of the solution before the addition of any LiOH. -> [H+] = 0.18 --> pH = -log[H+] ---> …

1) A 60kgg scuba diver with a volume of 0.83m^3 is submerged in seawater at a de

1) A 60kgg scuba diver with a volume of 0.83m^3 is submerged in seawater at a depth of 50 meters. What is the pressure (N/m^2) felt by the scuba diver alone? 2) An airplane is acc…

1) A 60kgg scuba diver with a volume of 0.83m^3 is submerged in seawater at a de

1) A 60kgg scuba diver with a volume of 0.83m^3 is submerged in seawater at a depth of 50 meters. What is the pressure (N/m^2) felt by the scuba diver alone? 2) An airplane is acc…

1) A 67-kg base runner begins his slide into second base when he is moving at a

1) A 67-kg base runner begins his slide into second base when he is moving at a speed of 3.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so t…

1) A 67-kg base runner begins his slide into second base when he is moving at a

1) A 67-kg base runner begins his slide into second base when he is moving at a speed of 3.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so t…

1) A 75 cm3 block of iron is removed from an 800Cfurnace and immediately dropped

1) A 75 cm3 block of iron is removed from an 800Cfurnace and immediately dropped into 200 mL of 20C water. What percentage of the water boils away? 2) A rigid cylinder contains 9.…