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The mass of the earth is 5.98 X 10^24 kg, the mass of the moon is 7.36 X 10 ^22 kg, and the distance between the centers of the earth and the moon is 3.82 X 10 ^8 m. How far is the center of mass of the earth-moon system from the center of the earth? is the earth-moon center of mass above or below the surface of the earth? by what distance?
A transverse wave propagates in the positive x-axis with a wavelength of 0.3m and a period of 0.001s. what is the frequency of this wave
In the lungs there are tiny sacs of air that are called alveoli. An oxygen molecule (mass = 5.30 x 10-26 kg) is trapped within a sac, and the uncertainty in its position is 0.140mm. What is the minimum improbability in the velocity of this oxygen ..
q1. a battery of e.m.f 1.50v has a terminal pd of 1.25v is joined to it. calculate the current flowing the internal
A heat engine runs in the cycle A to B to C and back to A. The pressure at C is 200 kPa. The volume at C is 20 liters.
A velocity selector has a magnetic field of magnitude 0.32 T perpendicular to an electric field of magnitude of 0.34 MV/m. The mass of the electron is 9.11x10-31 kg. How much energy must electrons have in order to pass through undeflected
The voltage across an air-filled parallel-plate capacitor is measured to be 85.0 V. When a dielectric is inserted and completely fills the space between the plates, the voltage drops to 25.0 V. If the dielectric doesnt completely fill the space betwe..
The surface pressure on Venus is 92.00 atm, and the acceleration due to gravity there is 0.894 g. What total inward force does the atmosphere exert on the vertical walls of the tank
A soap film formed in a loop of wire is, because of its weight, not exactly uniform in thickness, but wedge-shaped in cross section. By how much does the film differ in thickness over the distance
Consider an infinite solenoid of radius R, n turns per unit length, and current I. Calculate the final cinetic moment of each of the cylinders
A 3.65 uf capacitor, a 9.25 uf capacitor, and a 6 V battery are connected in parallel to make a complete circuit. what is the voltage of each capacitor
Heat is added to 1.00 10^3 cm^3 of water at atmospheric pressure. The water's temperature increases by 30.9°C. Find the increase in the water's internal energy
Two crates of mass 65 kg and 125 kg are in contact and at rest on horizontal surface. A 650 N force is excerted horizontally on the 65 kg crate. evaluate the acceleration of the system
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