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A spherical balloon is made from a material whose mass is 3.86 kg. The thickness of the material is negligible compared to the 2.16-m radius of the balloon. The balloon is filled with helium (He) at a temperature of 286 K and just floats in air, neither rising nor falling. The density of the surrounding air is 1.19 kg/m3. Find the absolute pressure of the helium gas.
A jet airplane is in level flight. The mass of the airplane is m = 8870 kg. At what angle is the airplane banked
Find out the magnitude of the electric field at a point P on the y-axis 0.529 m from the origin. The value of the Coulomb constant is 8.99 × 109 N • m2/C2.
A hand grenade is thrown with a speed of v0 30 m/s, and a 60 degree angle with x-axis, just prior to exploding. It breaks into two pieces of equal mass after the explosion. One piece has a final velocity of 40 m/s along x. Find the velocity of t..
An unstable particle produced in a high-energy collision is measured to have an energy of 483 MeV and an uncertainty in energy of 84 keV. Use the Heisenberg uncertainty principle to estimate the lifetime of this particle. the answer is in seconds
if the maximum height from which a person can jump without a parachute and still survive is 7.50 meters the maximum
An electron is accelerated from rest through a potential difference that has a magnitude of 3.00x10^7 V. What is the relativistic kinetic energy (in joules) of the electron
Babies recovering from surgery need to be fed milk from an open syringe through a nasogastric tube, a slender tube that passes in one nostril and down into their stomach
For lead 82Pb207 (atomic mass = 206.975880 u) obtain the mass defect in atomic mass units,
A scientific supply catalog advertises a material having the index of refraction of 0.85. Is that a better product to buy? Why or why not.
A 10.0- shell is traveling horizontally to the right at 25.0 relative to the ground when it explodes into two fragments, Find the magnitude of the velocity of the heavier fragment relative to the ground just after the explosion
After a satellite is blown apart, the first part has speed v1 = 0.63c and the second one has a speed v2 = 0.91c. what is the mass of the second piece
Use the worked example above to help you solve this problem. A balloon contains 4.40 moles of a monatomic ideal gas. Find the work Wenv done by the gas in expanding the balloon
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