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In a period of 1.4 s, 5.0 1023 nitrogen molecules strike a wall of area 8.9 cm2. find the pressure exerted on the wall
Write a balanced net ionic equation for the reaction of each of the following aqueous solutions with H+ ions.
The partial charge on the phosphorus atom in the PO4(-3) ion is +2.52. What is the partial charge on each oxygen atom
Hydrogen has an electronegativity value between boron and carbon and identical to phosphorus. With this in mind, rank the following bonds in order of polarity with 1 being the most polar and 5 being
A 41 cm long solenoid 1.20 cm in diameter is to produce a field of 0.395 mT at its center. How much current should the solenoid carry
Wishing to move his television set to another room, the owner extends the aerial feeder cable, calculate the size of the signal transmitted across the join to the second cable
Two small objects, A and B, are fixed in place and separated by 2.97 cm in a vacuum. Object A has a charge of +2.16 microC, How many electrons must be removed from object A
A 21.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 3.50 cm in diameter. How far to the side does the top of the pole flex
A ghost leaves a thin slime of ectoplasm (n=1.8) on a puddle of water (1.33). When looking down with light shining on the puddle, What is a possible thickness of the slime
A pumpkin sets in front of a mirror with radius of curvature of -20 cm. How far away is the pumpkin from the mirror
Polarized light goes through two Polaroid sheets. The angle between the two sheets is 50°. what is the angle between the original light and the first sheet
A toy cannon uses a spring to project a 5.30 g soft rubber ball. The spring is originally compressed by 5.00 cm, At what point does the ball have maximum speed
Suppose we are given a square coil that is 5.5 cm on a side containing 100 loops of very fine wire. The total resistance of this coil is 2.0 ? 10?3 ?. Find the magnitude of the peak value of the ind
Westerly winds coming off the Pacific Ocean rise over the Rocky Mountains, what is the surface temperature and relative humidity on the leeward side of the mountains
A bullet of mass 4.00g is fired horizontally into a wooden block of mass 1.26kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.240. What was the
The current in a series circuit is 22.0 A. When an additional 12.0-? resistor is inserted in series, the current drops to 11.0 A. What is the resistance in the original circuit
The initial concentration of lead(II)nitrate is 0.250M. and we used 1.00 ml. the lead(II)nitrate was titrated with 7.96 ml of 0.0500M of potassium iodide. A) Determine the concentration of lead(II)
An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. find the total kinetic energy of each wheel
If a triacylglycerol in peanut oil that contains one palmitic acid, one oleic acid, and one linoleic acid is completely hydrogenated, what is the product
A bat at rest sends out ultrasonic sound waves at 53.5kHz and receives them returned from an object moving directly away from it, What is the received sound frequency
Two resistors, 30.0 ? and 40.0 ?, are connected in parallel. The current through the second resistor is 2.90 A. Determine the current in the first resistor
Jojoba wax in candles consists of stearic acid and a 22-carbon saturated alcohol. Write the structure of jojoba wax.
How would you determine the density of an irregularly shaped rock, Is buoyant force a conservative force
highlight by clicking on the asymmetric carbons if any, and indicate whether each compound is Chiral and Number of stereocenters
A bat emits short pulses of sound at a frequency of 1.60×105 Hz. As the bat swoops toward a flat wall at speed 30.0 m/s, What is the frequency of sound incident on the wall