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The planet Mercury has a mass that is 5.00% of that of Earth, and its gravitational acceleration is gmercury = 3.70 m/s2.From what height would you have to drop the rock on Earth so that the fall-time on both planets is the same?
the two stars in a binary star system have masses 1.7 x 10 ^ 30 kg and 5.8 x 10 ^ 30kg. They are separated by 2.1 x 10 ^ 12m. What is the system's rotation period, in years
A mass is stretched 4 centimeters from the equilibrium position of a spring. If the displacement is doubled, what can be concluded about the restoring force? A. It is halved. B. It is doubled. C. It stays the same. D. It is increased by 4. E. It i..
The energy required to dissociate 1 mol of O2 to form 2 mole oxygen is 118kcal. find the wavelength of the photon
The Barringer meteor crater in northern Arizona is 180m deep and 1.2 km in diameter. The fragments of the meteor lie just below the bottom of the crater. what was the meteor's speed at impact
A 61 kg rock with a volume of 33 L is completely submerged in water. The density of water is 1 kg/L. What mass of water is displaced by the rock
A 5cm object is 30 cm in front of the converging lens with a focal length of 15 cm. calculate the image height
In Larry Niven's science-fiction novel Ringworld, a rigid ring of material rotates about a star. The inhabitants of this ring world live on the starlit inner surface of the ring, What is the length of a year on this planet
q1. a 32 percent efficient electric power plant produces 900 mj of electric energy per second and discharges waste heat
A sound wave has a frequency of 677 Hz in air and a wavelength of 0.50 m. What is the temperature of the air
One mole of an ideal monatomic gas is expanded adiabatically and quasi-statically from a pressure of 1,172 kPa and a temperature of 273 K to a pressure of 279 kPa. What is the final volume of the gas in cubic metres?
A solenoid 24.0cm long and with a cross-sectional area of 0.600cm^2 contains 420 turns of wire and carries a current of 75.0 A. Calculate the magnetic field in the solenoid
A particle of charge q = e moves in a circle of radius = 0.54 m with speed v = 1.000×107 m/s. find the maximum torque exerted on the loop by a uniform magnetic field of magnitude B = 1.00 T
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