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A quantity of steam (500 g) at 106 C is condensed, and the resulting water is frozen into ice at 0 C. How much heat was removed?------kcal
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. What work does the racket do on the ball
1 a conductor of rad r length e and resistivity p has resistance r. what is the new resistance if it is stretched to 4
A force gives a 100-kg mass an acceleration of 2 m/s2. If the same force acts on a mass of 1000 kg, what acceleration does it produce
two identifcal blocks with equal but opposite velocities collide and stick together. we know that they must be at rest
question a small block of mass m is given and initial speed vo up a ramp inclined at angle theta to the horizontal. it
iron atoms have been detected in the sun's outer atmosphere, some with many of their electrons stripped away. What is the net electric charge(in coulombs) of an iron atom with 26 protons and 7 electrons? Be sure to include the algebraic sign (+ or..
Light with a wavelength of 634 nm passes through a slit 7.68 µm wide and falls on a screen 1.85 m away. Find the linear distance on the screen from the central bright fringe to the second dark fringe on either side. cm
A thin, uniformly charged spherical shell has a potential of 638 V on its surface. Outside the sphere, at a radial distance of 16.0 cm from this surface, Calculate the radius of the sphere
A very hot piece of iron with mass 1.5kg and initial temperature 755 degrees celcius is placed into a tank of water with total water mass 3.0kg, what is the final equilibrium temperature for the iron and water
A car of mass 1572 kg collides head-on with a parked truck of mass 2000 kg. what is the initial speed of the car
A loudspeaker at a rock concert generates 10-2 W/m2 at 22.0 m at a frequency of 1.0 kHz. Assume that the speaker spreads its energy uniformly in three dimensions. What is the total acoustic power output of the speaker
A stunt driver is attempting to jump 20 cars of total length of 42m using an inclined ramp. Calculate the Minimum angle of the ramp that would allow the stunt driver to clear 20 cars
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