Physics Properties Of Matter Level: Misc Level
A tank having a volume of 0.11 m3 contains helium gas at 170 atm. How many balloons can the tank completely fill if each filled balloon is a sphere 34 cm in diameter at an absolute pressure of 1.2 atm?
Physics Properties Of Matter Level: Misc Level
A gas cylinder of volume 36 liters contains an ideal gas at temperature 27 % C. and pressure 11720 kPa. Some of the gas leaks, untill the pressure falls to 1325 kPa. How many moles of gas leaked, assuming that the temperature remains constant during this process?
Physics Properties Of Matter Level: Misc Level
A constant volume gas thermometer has a pressure of 7160 Pa at 22 % C. What would the pressure be for - 61 % C. (in Pa)?
Physics Properties Of Matter Level: Misc Level
A can of gasoline has a rectangular base with dimensions of 13 cm by 10 cm. If there is 0.5 liters of gasoline in the can, how much does the surface of the gasoline rise (in mm) in the can when the temperature is raised by 34%C.
The coefficient for volume expansion of gasoline is 9.5 10-4 /%C.
Physics Work,Power & Energy Level: Misc Level
At what temperature (K) does the average KE of a molecule in an ideal gas equal 3.9 10-21 J?
Physics Heat & Thermodynamics Level: Misc Level
How much ( in m) does a concrete slab on the mackinac Bridge 240 m long contract when going from 23 to - 19 degrees % C? The linear expansion coefficient a is 10- 5 per %C.
Physics Properties Of Matter Level: Misc Level
2.9 liters of Nitrogen at - 2 %C and 2.3 atmospheres contain how many moles?
Physics Electrostatics Level: Misc Level
Calculate the magintude and direction of the electrical field at a point P which is 25 cm to the right of a point charge Q = 3.2 x 10 to the -6 C.
Physics Electrostatics Level: Misc Level
Determine the maginitude of the electrical force on the electron of a hydrogen atom exerted by the single proton that the atoms nucleus. Assume the average distance between the revolving electron and the proton is r =0.51 x 10 to the - 10 m.
Physics Heat & Thermodynamics Level: Misc Level
A steam engine operates between 550 degrees and 300 degrees C. what is the maximum possible efficiency of this engine?
Physics Heat & Thermodynamics Level: Misc Level
In an engine, 0,30 moles of an ideal monatomic gas in the cylinder expands rapidly and adiabatically against the piston In the process, the temperature of the gas drops from 1100 k to 450 k. How much work does the gas contain ?
Physics Work,Power & Energy Level: Misc Level
A 4.0 bullet traveling at a speed of 380 m/s enters a tree and exits the other side with a speed of 180 m/g. what was the energy transferred?
Physics Force & Laws Of Motion Level: Misc Level
A chain hangs from the ceiling of an elevator with three links as shown:
a.Ring A and C each have about twice the mass of ring B. If the elevator is at rest, draw a force diagram for rings A, B, and C, In your drawing, circle those forces, which are Newton s 3 rd Law pairs.
Now say the elevator accelerates upward. Would your diagram for B be any different? If no explain why not. If yes, explain how it would change.
c. If the mass of A is 10 kg and the elevator accelerates upward with a = 2. 0 m/sec2, calculate the force of that ring A exerts on B.
Physics Kinematics Level: Misc Level
A book flies past your dorm window (which is 1 m tall), taking 0.25 s to pass. Assuming it was dropped, from what height (above your window) was the book dropped?
Physics Kinematics Level: Misc Level
At the scene of a highway collision, skid marks stretch out for 90 m away from the collision site. Assuming the deceleration of the vehicle was at least 6 m/s2, estimate the speed of the car before the incident.
