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(a) How far from the center of the earth is the center of gravity of the earth-moon system? (Note: the radius of the earth is 6400km)
(b) Where is the point in the earth-moon system where the force of gravity due to these bodies on a test mass will be 0?
(c) What is the magnitude of the force of gravity on the moon due to (i) the earth and (ii) the sun?
(d) When the moon is between the earth and the sun (i. e. new moon), what is the magnitude and direction of the acceleration of the moon? What is the magnitude and direction of the acceleration of the moon when the earth is between the moon and the sun (i. e. full moon)?
A jet airliner, moving initially at 330 mi/h to the east, suddenly enters a region where the wind is blowing at 100 mi/h toward the direction 30.0° north of east
A potter's wheel having a radius 0.48 m and a moment of inertia of 10.4 kg · m2 is rotating freely at 48 rev/min. The potter can stop the wheel in 4.5 s by pressing a wet rag against the rim and exerting a radially inward force of 65 N. Find the effe..
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
Calculate the temperature at which a tungsten filament that has an emissivity of 0.50 and a surface area of 3.9 10-5 m2 will radiate energy at the rate of 35 W in a room
A scuba diver is 40 m below the surface of a lake, where thetemperature is 5 degrees C. He releases an air bubble with avolume of 15 cm^3. What is the volume of the bubbleright
If the 320-N force is instead pulling the block at an angle of 20.0° what will be the acceleration of the crate be
A five kilogram block and a four kilogram block are placed at either end of a compressed spring. what is the velocity of the other block
A simple harmonic oscillator consists of a block of mass 1.70 kg attached to a spring of spring constant 144 N/m. What is the amplitude of the oscillations
An 8 lb weight stretches a spring 4ft, the system resides in amedium offering a resistance to the motion equal to 1.5 times theinstantaneous velocity, if the weight is released at a position 2ftabove its equilibrium position with downward velocity of..
A 630-Hz sound travels through pure hydrogen. What is the speed of sound in hydrogen
question1a 8kg mass moves in a circular path of 4m radius on a frictionless horizontal table. it is attached to a
A damped mass-spring system oscillates at 275-Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 3.20cm and the energy of the oscillating system is then 32 J.
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