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An empty oven with a volume of 0.106 m3 and a temperature of 292 Kelvin is turned on. The oven is vented therefore that the air pressure inside it is always the equal as that of the atmosphere. Initially, the air pressure is 1.00x105 Pascal, but after the oven has warmed up to a final temperature of 419 Kelvin, the atmospheric air pressure has decreased to 9.86x104 Pascal due to a change in weather conditions. Find how many moles of air leave the oven while it is heating up?
A cars brakes can only accelerate the car by -10m/s^2. If the car is going 30m/s when the brakes are applied, how long would it take for the car to come to a stop.
Neutron-induced fissionof U-235 results in the fission products iodine-139 and yttrium-95. How many neutons are released
If the skier's speed at point A in the figure below is 8.1 m/s, illustrate what is the normal force exerted by the snow on the skier at point B? Ignore frictional forces.
The radius of curvature of the road is R, the banking angle is ?, and the coefficient of static friction is ?s. Determine the range of speeds the car can have without slipping up or down the road
One billiard ball is shot east at 3.0 m/s. A second, identical billiard ball is shot west at 1.0 m/s. What are the speed and direction of the first ball after the collision
a 5.0kg box is pulled horizontally with a 45-n force that makes angle of 40 degrees with the horizontal. the
A Geiger counter reading of a radioactive sample is initially 7120 counts per minute. What is the sample's half-life
What is the frequency of string that was tightened.How high does it rise above the ground.
Suppose you wish to fabricate a uniform wire from 1.60 g of copper. The wire is to have a resistance of R = 0.580 ? and all the copper is to be used, What must be the length of this wire
At what net rate does heat radiate from a 275m^2 black roof on a night when the roof temp is 30.0C and the surrounding temp is 15C. The emissivity of the roof is 0.900
A pail of water is rotated in a vertical circle of radius1m, what two external forcces act on the water in the pail
with what speed would the arrow leave the bow.
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