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A plastic container holds 100 ml of liquid when filled to the top, and 98 ml of ethyl alcohol is placed in the container. The temperature of the system is initially 20oC. The coefficient of linear expansion of the plastic is 1.2x10-4 / K , and the coefficient of volume expansion of ethyl alcohol is 1.12x10-3 / K . At what temperature will the alcohol start to spill out of the container?
The half life of 14C is 5730 years. What fraction of the 14C nuclei in a sample are left after 7180 years? The amount of 14C in an old, isolated sample of vegetation is 0.744 that expected from a present day sample by equivalent carbon content. Compu..
What is the momentum in kg m/s of a proton of mass 1.67 x 10-27 kg moves with a speed of 0.9c
A spring whose spring constant is 750 N/m is compressed by 15 cm from. 10 kg ball. How high will the ball go in the air
How long does it take for the grinding wheel to stop ? Through how many radians has the wheel turned during the interval found in.
A 55.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of21.0 m. What is the centripetal acceleration of the child
What is volume concentration
an electric motor rotating a workshop grinding wheel at a rate of 9.70 101 revmin is switched off. assume the wheel has
Does the force that your hand exerts on the bag's handle do any work? Define. Does this force do any work while you are riding up an escalator at a constant velocity.
An unstable particle is at rest and suddenly breaks up into two fragments. No external forces act on the particle or its fragments. One of the fragments has a velocity of +0.800c and a mass of 1.87 10-27 kg, while the other has a mass of 4.31 10-27 k..
A mule uses a rope to pull a box that weights3.0x102N across a level surface with constant velocity. What is the normal force of the floor on the box
a helium nucleus charge 2e moves through a potential difference v -0.60 kv. its initial kinetic energy is 2.90x10-16
in a worst-case design scenario a 2000kg elevator with broken cables is falling at 4.00ms when it first contacts a
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