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The moon is 1.5 x 108 km from the sun’s center and 3.9 x 105 km from Earth’s center. If the masses of the moon, Earth, and the sun are 7.3 x 1022 kg, 6.0 x 1024 kg, and 2.0 x 1030 kg, respectively, discover the ratio of the gravitational forces exerted by Earth and the sun on the moon.
a series combination of a 14 k resistor and an unknown capacitor is connected to a 11 v battery. one second after the
Two ants race across a table 66 cm long. One travels at4.42 cm/s and the other at 3cm/s. When the first one crosses thefinish line, how far behind is the second one
Does a atom gain or lose energy going from lyman series to balmer series? Does a atom gain or lose energy going from balmer series to paschen series series? Does a atom gain or lose energy going from balmer series to prilind series?
In the bohr theory of the hydrogen atom an electron moves in acircular orbit about a proton. the radius of the orbit is0.53x10^-10m. find the electrostatic force acting on each particle
The ripples in a certain groove 16.3 centimeter from the center of a 33-rpm phonograph record have a wavelength of 1.26 mm. Find what will be the frequency of the sound emitted
A ball is dropped from the top of a 6.10m tall building, falls straight downward, collides inelastically with the ground and bounces back up. How many bounces can the ball make
a 20 kg box rests on a 35 deg ramp. the coefficients of static and kinetic friction are 0.75 and 0.45 respectively.
When a "dry-cell" flashlight battery with an internal resistance of 0.37 ? is connected to a 1.56-? light bulb, Find the ratio Pwet/Pdry of the power delivered to the bulb by the wet-cell battery to the power delivered by the dry-cell battery
A dipole is located at the origin, and is composed of charged particles with charge +e and -e, Calculate the force on a proton due to this dipole at a location m.
A cubic foot of lead that weighs 700 lb is submerged in water. What is the buoyant force acting on it? The volume of one cubic foot of water weighs 62.4 lb
A cyclist intends to cycle up a hill whose vertical height is 170m.. Assuming the mass of bicycle plus cyclist is 75 kg
Two in-phase loudspeakers are located at (x, y) coordinates (-2.5 m, +2.0 m) and (-2.5 m, -2.0 m), Determine the amplitude of the sound at the five positions on the y-axis (x = 0) with y = 0.0 m, 0.5 m, 1.5 m, and 2.0 m
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