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A 5kg mass slides along a frictionless surface and strikes another block of mass 3kg which is at rest. Assume the collision iselastic and determine the final velocities of each of the blocks.
An astronaut returning to Earth after a long trip is cruising earthward at 7.12×107m/s. At what speed does the package reach Earth
A circuit consists of a resistor and a capacitor in series with an ac source that supplies an rms voltage of 240 V. What is the average power supplied by the source
A 1400 kg car carrying four 92 kg people travels over a "washboard" dirt road with corrugations 4.5 m apart. by how much does the car body rise on its suspension
a mass of 0.30 kg is attached to a spring and is set into vibration with a period of 0.24s. what is the spring
A roller coaster travels 98.9ft at an angle of 42.9 above the horizontal. How far does it move vertically
In an internal combustion engine, the air-fuel mixture at the end of the ignition phase has volume 7.34×10?4 m3, what is the final pressure after the expansion
The depth of the ocean is sometimes measured in fathoms (1 fathom = 6 feet). Find the volume of water (in cubic meters) beneath this rectangle
Three negative charges of equal magnitudes are positioned along the x-axis at x = -a, x=0, and x = +a respectively. The charge located at x=0 is moved away along the y-axis to a position (x,y) = (0, +a). How does the potential energy of the system..
One hundred turns of insulated copper wire are wrapped around an iron core of cross-sectional area 0.100 m2. The circuit is completed by connecting the coil to a 10-ohms resistor. As the magnetic field along the coil axis changes from 1.00 T to 4...
A pot containing 1.01 liter of water, initially at 19°C, is placed on a 1051 W electric heating element. How much heat is necessary to boil all the water away
An organ pipe is open at one end and closed at the other. The pipe is 1.5 m long. Assume the speed of sound in the pipe is 340 m/s. The lowest harmonic frequency for this pipe is ________Hz.
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.5m above the ground, Use the work-energy theorem to find its maximum height
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