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Suppose that we have a mixture of N2 (g) and O2 (g) of unknown composition whose total pressure is 385 torr. If all the oxygen as is removed from the mixture by reaction with phosphorus, which does not react directly with nitrogen, then the new pressure is 251 torr. Calculate (a) the partial pressure of nitrogen and (b) the mole fraction of each gas in the original mixture.
Assume that the water pressure at the bottom of a tree is -0.1 MPa and that the water pressure at the top of the tree is -1.5 MPa. What will be the maximum height of the tree
At time a grinding wheel has an angular velocity of 21.0. It has a constant angular acceleration of 26.0 until a circuit breaker trips at time = 1.6. From then on, the wheel turns through an angle of 435 as it coasts to a stop at constant angular dec..
A 5.0g- lead bullet is fired into a fence post. The initial speed of the bullet is 240m/s, How much does the bullets temperature increase
Only two horizontal forces act on a 6.3 kg body. One force is 6.0 N, acting due east, and the other is 8.3 N, What is the magnitude of the body's acceleration?
A 2.0-mW laser pointer has a beam diameter of 1.7 mm. When it is accidentally pointed at a person's eye, What is the intensity of light incident on the retina
A dentist's mirror is placed 2.4 cm from a tooth. The enlarged image is located 6.4 cm behind the mirror. How is the image oriented relative to the object
Block A in Figure is given an initial velocity of 6 m/s up the incline. Declare of a block on a inclined plane.
A sailboat on the ocean has a mast of height 18.5 m. When viewed through a pair of binoculars the mast has an angular size of 0.065 rad. what is the distance between the observer and the sailboat
An ion with charge q is distance r from a molecule with polarizability (alpha). Find an expression for the magnitude force F
A 3.4-m-tall, 40-cm-diameter concrete column supports a 2.0×105kg load, By how much is the column compressed
A motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 m/s2, How much time elapsed from the initial braking to the collision
A 20-m long spacecraft is passing by earth at 0.8c. What is the length of the spacecraft measured within the moving (spacecraft) referencee frame
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