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A clown at a birthday party has brought along a helium cylinder,with which he intends to fill balloons. When full, eachballoon contains 0.034 m3 of helium at an absolutepressure of 1.2x105 Pa. The cylinder containshelium at an absolute pressure of 1.6x107 Pa andhas a volume of 0.0031 m3. The temperature of thehelium in the tank and in the balloons is the same and remainsconstant. What is the maximum number of people who will get a balloon?
if we have an electron orbiting an atomic nucleus. we may think the electron is doing a circular motion around the
A 5.95kg object is thrown 18.10m/s at a 30.00° angle andcollides head-on at its peak with a 14.5kg object fired at28.0° which is also at its peak. At what velocity was the14.5kg object fired
An electron moving through an electric field experiences an acceleration of 4.3 103 m/s2. Find the electric force acting on the electron
A 3.0-cm-diameter parallel-plate capacitor with a spacing of 0.300 mm is charged to 500 V. What is the total energy stored in the electric field
A string is 59.0cm long and has a mass of 3.00 g.A wave travels at 4.95m/s along this string. what is the speed of a wavealong the second string
a model rocket is launched straight upward with an initial speed of 60.0 ms. it accelerates with a constant upward
Compare and contrast the average kinetic energy of 0.5 L of coffee at 34°C, 0.5 L of coffee at 38°C, and 0.25 L of tea at 43°C. 4. Compare the thermal energy of 0.5 L of coffee at 38°C and 0.25 L of coffee at 38°C. 5.
Three forces are applied to a tree sapling, to stabilize it. If F1= 282 N and F2= 355 N, find F3 in magnitude and direction. The angle between F1 and F2 is equivalent to 110 degrees.
A 13 g bullet traveling 215m/s penetrates a 2 kg block of wood and emerges cleanly at 157m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after bullet emerges.
The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 601 mW/ m2
A 24-V battery is connected in series with a resistor and an inductor, Find the energy stored in the inductor one time constant after the switch is closed
How large does the radius R of the dish have to be to attain electric field vector amplitude of 0.1mV/m at the receiver.
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