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Find at what distance from the Earth will a spacecraft traveling directly from the Earth to the Moon experience zero net force because the Moon and Earth pull with equal and opposite forces?
The "tube length" of a microscope is defined to be the difference between the (objective) image distance and objective focal length: L=di%u2212fobjective. How far from the object should this lens be placed
A 400-kg piano slides 3.6 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine the force exerted by the man
a transverse traveling wave on a cord is represented bynbspdnbspnbsp0.56nbspsin6.4xnbspnbsp82t
my kids came up with a form of tether ball where they attached a ball to a string and let it swing around the role.
A singly charged positive ion has a mass of 2.53 10-26 kg. After being accelerated through a potential difference of 238 V, Calculate the radius of the path of the ion in the field
Consider the l=1 to l=0 transition in the HCl molecule. If the sample contains two isotopes of chlorine (35Cl and 37Cl) the rotational spectral line is split in two. Calculate the energy difference between the photons.
A parallel-plate capacitor of capacitance C is connected to a battery of voltage V until it is fully charged. The energy density in the capacitor is then equal to u. If the same capacitor is then connected to a battery of voltage 2V its energy densit..
the lens of a slide projector with a focal length of a 120 mm projects a slide onto a screen that is 13 m away. how far
a spacecraft is in orbit around a planet. the radius of the orbit is 2.9 times the radius of the planet which is r
Pacemaker Batteries Pacemakers designed for long-term use commonly employ a lithium-iodine battery capable of supplying 0.42A-h of charge. what is the expected lifetime of the device
A spherical weather balloon is filled with hydrogen until its radius is3.00m. Its total mass including the instruments it carries is10.0kg. Find the buoyant force acting on the balloon
A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction.
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