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How many moles of atoms are there in: (a) 28g of N_2; (b) 32 g of O_2; (c) 16 g of methane - CH_4; (d) 38 g of F_2?
Balance this question: __Fe(s) + __ O_2(g) -> __ Fe_2O_3(s)
Two idenical wavelengths λ = 4.00 meters are emitted from separate sounces. At a certain obsevation point, the path-lengh difference between two waves is 5.00 meters. At a fixed point of time (ie, at some snapshot of time), what is the phase differen..
The rms speed of the molecules of a gas is 200 m/s at a temperature 300 K. What is the rms speed of the molecules at 500 K
A bowling ball encounters a 0.76 m vertical rise on the way back to the ball rack, as the drawing illustrates. find the translational speed at the top
A 0.20 kg glider moving at 5 m/s to the rightcollides with a 0.25 kg glider moving 2 m/s to the left. What was the initial momentum of the system of two gliders
A child goes down a playground slide that is inclined at an angle of 25.0° below the horizontal. Find the acceleration of the child
question a -4.0-microc charge is situated at the origin of an xy-coordinate system. what is the magnitude and direction
A man throws a rock from the top of a cliff that is 80.0 m above ground level with an initial speed of 39.0 m/s at an angle of 39.0° above the horizontal. Determine the time it takes for the rock to hit the ground below the cliff. Determine the hor..
A test rocket is firedvertically upward from a well. A catapult gives it an initial speedof 79.8 m/s at ground level. Its engines then fire and itaccelerates upward at 4.10 m/s2 until it reaches an altitude of1060 m.
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. What is the velocity of the electron and direction
When a battery is connected to the plates of a 9.00-µF capacitor, it stores a charge of 216.0 µC. What is the voltage of the battery
A storage tank at STP contains 19.1 kg of nitrogen What is the volume of the tank. What is the pressure if an additional 15.7kg of nitrogen is added without changing the temperature.
A baby elephant is fixed in a mud hole. To help pull it out game keepers use a rope to apply a force A as part a. By itself, though, force A is insufficient.
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