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An ideal gas initially at pressure 8.0 atm and temperature 300K expands adiabatically until its volume doubles. Find the final pressure and temperature
A compound composed of elements X and Y is 1/3X by mass. The atomic mass of element X is 1/4 the atomic mass of element Y. Find the empirical formula.
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 671 m/s. compute the horizontal distance between the end of the rifle
Molecular chlorine, Cl2, is a green gas. Sketch a few of the rotational, vibrational, and electronic energy levels of Cl2 on the same diagram to relative scale.
A neutral (uncharged) capacitor has a charge of -3.00C moved from one of the plates to the other in a time of 5.00 sec, What was the average current
A positive charge of 0.800? C is located in a uniform field of 1.20×105 N/C. How close are the two charges
A 50-lb weight hangs from a string. Find the tensions T1 at 50 degrees and T2 at 30 degrees in the string, and write these vectors in terms of the vectors i and j
As a tennis ball is struck, it departs from the racket horizontally with a speed of 27.3 m/s. How far above the court is the tennis ball
An airplane with a speed of 73.2 m/s is climbing upward at an angle of 40° counterclockwise from the positive x axis. Calculate the distance along the ground
A train 450 m long is moving on a straight track with a speed of 82.1 km/h. determine how long the train blocked the crossing
calculate the volume of 1.420 M NaOH required to titrate 38.70 ml of a 1.50 M H3PO4 solution
Titanium is a strong, lightweight, corrosion-resistant metal that is used in rockets, jet engines, and bicycle grams. It is prepared by the reaction of titanium (IV) chloride with molten magnesium b
Calculate the potential energy of interaction between the two electrons in the helium atom when they are separated by a distance of 1 Å. Similarly, what would be the potential energy of one of
Runner A is initially 8.0 mi west of a flagpole and is running with a constant velocity of 6.0 mi/h due east. How far are the runners from the flagpole
A 2.5 L helium balloon is filled at a florist's shop. If the temperature inside the shop is 68°F, what volume will the helium occupy after being left in an automobile at ?5°F in the parking
A uniform electric field of magnitude 271 V/m is directed in the negative x direction. What was the change in the potential energy of this charge
A car travels along a straight line at a constant speed of 58.5 mi/h for a distance d and then another distance d in the same direction at another constant speed. What is the average speed for this
Caffeine crystals always contain at least one molecule of water per caffeine molecule. Draw chemical structures to explain why a water molecule might be essential to producing a stable crystal of ca
A copper rod hangs vertically from a fixed support. The rod is 1.55 m long and 1.55 mm in diameter. how far does the rod stretch
A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of krypton in the mixture if the total pressure is 884mm Hg
The minute hand of a wall clock measures14 cmfrom its tip to the axis about which it rotates. find angle from a quarter after the hour to half past
The density of hexa-fluorobenzene is 1.61 g/ml. If you mix dichloromethane, water and hexafluorobenzene together how many layers will there be and what will their positions be
Does current through a power supply increase when parallel bulbs are added? what is the current through the power source
A 2.5 L helium balloon is filled at a florist's shop. If the temperature inside the shop is 68°F, what volume will the helium occupy after being left in an automobile at 5°F in the parking l
The edge of the thimble of a micrometer moves a distance of 2.0 mm when it is given four complete revolutions. Find the pitch of the micrometer