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A rectangular block of ice with dimensions 4m by 5m by 0.4 m floats on water. What is the weight of the ice in pounds?
Iced tea is made by adding ice to 2.4 kg of hot tea, initially at 70?C. How many kg of ice, initially at 0?C, are required to bring the mixture to 10?C? (Lf = 3.33×105 J/kg, cw = 4,186 J/kg•? C)
If you had 102 L of water and you wanted to make a solution with a salt concentration of 0.2 g/L, how much salt would you need to add
the arm of a car windshield wiper is 12.75 in long and its attached at the middle of a 15.00 in blade. assume that the
A turntable that spins at a constant 80.0 rpm takes 3.90 second to reach this angular speed after it is turned on. Evaluate its angular acceleration
A candle flame 1.44 cm high is located 10 cm in front of a circular mirror. A real inverted image forms 5 cm from the mirror. What is the focal length of the mirror?
Occasionally an asteroid will break into fragments due to a collision. These fragments can leave the asteroid belt and some even make their way to Earth. Upon entering the Earthís atmosphere a fragment is heated to high temperature by frictional f..
A level road has a turn with a 50m radius of curvature. What is the max speed for a car to negotiate this turn when the road is dry and the coefficient of static friction is 0.82
calculate the specific heat of a metal. in jkg.k from the following data. a container made of the metal has a mass of
A ball is launched from a height of 7.94 ft above the ground with a speed of 16.95 m/s at an angle of 34.48 degrees from the horizontal
The spin cycles of a washing machine have two angular speeds, 431rev/min and 622rev/min . The internal diameter of the drum is 0.440m. Find the laundry's maximum tangential speed
What is the current density
When the density of the string is changed, say increased, what is the effect on the frequency required to obtain a given number of loops
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