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A 0.075 kg ice cube at 0 degree C is dropped into an insulated Styrofoam cup holding 0.33 kg of water at 25.0 degree C. Calculate the final temperature of the system, neglecting the heat loss to the cup and the Outside. The specific heal of water is 4.2 kJ/kg0 degree C and the latent heat of melting of ice is 335 kJ/kg.
The motion of the pistion o fan automobile engine is SHM. if the stroke of an engine (twice theamplitude) is 4 in. and the angular velocity is 3600 rev/mincompute the acceleration of hte pistion at the end of itsstroke
The human eye can detect light by an intensity as low as about10–9 W/m2. A typical large galaxy, such as our own Milky Way, radiates energy at the rate of about 4.*1036 W. What is the maximum distance from earth of a typical galaxy that can be seen w..
Think about a one-dimensional well with infinite walls. This well contains an electron. Solutions of the time-independent Schrodinger equation are of the form an sin (n π x/L) where L is the length of the well. What is ‘An’ in terms of L and n so tha..
A cable is used to raise a 29kg urn from an underwater archeological site. There is a 21 N drag force from the water as the urn is raised at a constant speed.
In the lab you place a beaker that is half full of water (density ρw) on a scale. You now use a light string to suspend a piece of metal of volume V in the water. The metal is completely submerged, and none of the water spills out of the beake..
You drive on Interstate 10 from San Antonio to Houston, half the time at 60 km/h and the other half at 105 km/h. On the way back you travel half the distance at 60 km/h and the other half at 105 km/h.
By how much does the ball clear the net. How far below top surface would the medallion appear if the observer (not wearing goggles) and the block were under water.
Ashley is coasting across a level snowfield at a constant velocity of +2.6 meter per second. Determine how fast do the two of them slide across the snow together on the inner tube
A 115 grams ball is moved to the right at 5.8 meter per second collides head-on with a 185 gram ball that is moving to the left at 2.3 m/s. find the speed and direction of each ball after the collision
you have a 500n box and you pull on the box with a rope that is horizontal. the floor is not frictionless. you pull on
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 18.0cm , giving it a charge of -12.0?C. Find the electric field just inside the paint layer
What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 45 rpm (revolutions per minute) if the wheel's radius is 25.6 cm
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