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You are cooking pasta, and using 4000 g of water.
a.) How much heat is needed to raise the temperature of the water from room temperature (20 degrees C) to its boiling point (100 degrees C)? Give your answer in Calories.
b.) Once it reaches the boiling point, how much heat is needed to boil the pot dry? Give your answer in Calories.
Fresh water flows through a horizontal tube of diameter 2.96 cm that is joined to a second horizontal tube of diameter 1.55 cm. What is the speed of flow in the first tube
A 3.00-kg block starts from rest at the top of a 29.0° incline and slides 2.00 m down the incline in 1.65 s. Find the frictional force acting on the block
A block of ice slides 500 m down along a frictionless slope (slopes 20 degrees below horizontal). what is blocks speed at end of slop
Oxygen has a molar mass of 32 g/mol. If 16.9 moles of oxygen are in a 0.117 m3 container with an rms speed of 439.0 m/s, What is the pressure of the gas
What type of material generally makes a better conductor of heat, a solid or a gas? Briefly explain!
Describe the components of a diet that promotes cardiovascular health. What are three examples of such a diet?
One cubic meter of water flowing over Niagara Falls in New York drops 92.2 meters. how much heat energy would the water have
As a bowling ball of radius 14.0 cm rolls down the alley to the right, a frictional force of magnitude 1.22 N, Find the frictional torque with respect to an axis through the center of the ball
The gas is known to be a mixture of two isotopes whose molecular masses are 20.0 and 22.0. Determine the mole and mass fractions of each of the neon isotopes present in commercial neon.
A 13 g bullet traveling 226 m/s penetratesa 2.0 kg block of wood and emerges going 164 m/s. If the block is stationary on a frictionlesssurface when hit, how fast does it move after the bulletemerges?
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 21 m/s at an angle of 31 degrees above the horizontal
a pulley with a rotational inertia of 4.6 times 10-3 kg m2 about its axle and a radius of 7.0 cm is acted on by a force
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