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The moon orbits the earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the earth andthe moon and that the mass of the earth is 5.98 x 1024kg. Find the period for the moon's motion around the earth. Express the answer in days and compare it to the length of a month.
A photon has momentum of magnitude 8.15×10?28kg?m/s. What is the wavelength of this photon
A rock is dropped from a bridge to the water below. It takes 2.4 s to hit the water. Find the final speed of the rock when it hits the water. How high is the bridge above the water
A pencil is held perpendicular to the optical axis of a concave spherical mirror. The pencil is 85 cm from the center of the mirror, What is the magnification of the pencil's image
what is the lumberjack's speed relative to the shore? Neglect friction between the log and the water.
A cube of wood having an edge dimension of 22.0 cm and a density of 650 kg/m3 floats on water. What is the distance from the horizontal top surface of the cube to the water level?
the manufacturer wishes to produce a desktop version of the machine. this requires reducing the size of the drum to a
A 0.347 kg particle slides around a horizontal track. The track has a smooth, vertical outer wall forming a circle with a radius of 1.59 m. What is the total number of revolutions the particle makes before stopping
On a 7.2 m length of string, you count 5 crests and 4 troughs. What is the wavelength of the waves on the string
The gravitational force between two masses M and m separated by a distance r is 40 N. What is the new force when this distance is halved?
find the ground state energy of an electron confined to a 1 d box of length 0.1 nm. show an energy level diagram
A bowling ball with a diameter of 21.0cm is rolling down a level alley surface at 11.4m/s without slipping. If it now starts to roll up a 30 degree incline, how far up the incline will it travel before it stops
q1. a 58.0-kg projectile is fired at an angle of 30.0deg above the horizontal with an initial speed of 1.26 102 ms from
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