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suppose 125 g of oxygen o2 320 gmol is heated at constant atmospheric pressure from 190degc to 100degca how many moles
when 229 j was added as heat to a particular ideal gas the volume of the gas changed from 543 cm3 to 100 cm3 while the
a coil has 345 turns and self-inductance 360 mh the current in the coil varies with time according to i 680 ma
a 050-kg mass hangs from a spring attached to the top of an elevator the spring constant of the spring is 196 nm the
to complete your masters degree in physics your advisor has you design a small linear accelerator capable of emitting
what is the curie temperature find the curie temperature for iron cobalt and
the united states uses 112times1019j of electrical energy per year assume that all this energy came from the fission of
big ben the parliament tower clock in london has an hour hand 270 m long with a mass of 300 kg and a minute hand 420 m
a 160-m uniform ladder weighing 480 n rests against a frictionless wall the ladder makes a 590deg angle with the
1 to the amazon epm evil physics monkey with his limited resources the epm decides that the best way to get to his
a a bullet is shot into a block of ice at 0 degrees celsius it comes to rest and melts 005 kg of ice what was the
What will the direction of the velocity of the cars be immediately after the collision? Express answer using two sig figs.
Determine the direction and of the satellite after the collision. Assume the initial direction of the asteroid as +X-axis. Express answer using two sig figs.
In a pool game, a cue ball traveling at 0.80 m/s hits the stationary eight ball. The eight ball moves off with a velocity of 0.35 m/s at an angle of 37 degrees relative to the cue ball's initial dir
What is the angular momentum of a 3.8 kg uniform cylindrical grinding wheel of radius 16 cm when rotating at 1900 rpm?
What is the shortest time between flashes of light that will make a three-bladed propeller appear stationary when it is rotating with an angular speed of 16.7 rev/s?
Calculate the angular momentum of Earth that arises from its spinning motion on its axis, treating Earth as a uniform solid sphere.
A light spring with spring constant 1300 N/m hangs from an elevated support. From its lower end hangs a second light spring, which has spring constant 1700 N/m. An object of mass 1.50 kg is hung at
A 310-N child is in a swing that is attached to a pair of ropes 1.80 m long. Find the gravitational potential energy of the child-Earth system relative to the child's lowest position at the followin
The coefficient of static friction between the pallet and the driveway is μs = 0.18. if you gently start pulling on the rope using the car, how much tension is there in the rope when the pallet j
A concave mirror (f = 44.0 cm) produces an image whose distance from the mirror is exactly 1/4 the object distance. Determine (a) the object distance and (b) the (positive) image distance.
The image of this second object has the same height as the other image. How far in front of the mirror is the second object located?
For distant stars, astronomers estimate the distance by comparing the intensity of light coming from these stars with the intensity of similar stars at a distance of 10 parsecs (1 parsec = 3.09 * 10
In an amusement park you stand against the inside wall of a circular object that resembles a tin can. The circular object begins to whirl around. After a constant speed is reached, the floor drops d
A convex lens with a 5 cm radius is used to focus sunlight on a piece of paper to a spot 1 mm in diameter. If it takes 5 seconds for the paper to start burning, how much energy does the paper need t