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The following takes place at a colony on the Moon some time in the distant future:
A 40 kg cannon is loaded with a 10 kg cannonball and mounted on a 6 kg platform with wheels very low to the ground. The wheeled platform is pushed and moves forward at 3 m/s horizontally. When the cannonball is fired out, the cannon recoils (backward) with a velocity of 2 m/s relative to the ground. The cannonball then strikes a large solid block that weighs 32N and is sitting on the edge off a 50 m high cliff and becomes embedded in it. The combined mass is shot horizontally off the cliff. With what speed does the mass hit the ground at the bottom of the cliff?
What is the pressure change in water going from a 3.2- cm-diameter pipe to a 1.8- cm-diameter pipe if the velocity in the smaller pipe is 8.0 m/s
A monoenergetic beam of neutrons, cp = 4 X 1 0 10 neutrons/cm2-sec, impinges on a target 1 cm2 in area and 0. 1 cm thick. How many neutron interactions per second occur in the target
the membrane that surrounds a certain type of living cell has a surface area of 5.1 x 10-9 m2 and a thickness of 1.9 x
A coil is wrapped with 200 turns of wire on a square frame withsides 18 cm. A uniform magnetic field is applied perpendicular to the plane of the coil.If the field changes uniformly from 0.50 T to 0 in 8.0 s, find the average value of the induced ..
An Alaskan rescue plane drops a package of emergency rations to stranded hikers, Find the angle of the impact
after flying for 15 min in a wind blowing 42 kmh at an angle of 34deg south of east an airplane pilot is over a town
From the shore of a frozen lake, Eli Manning throws a 2 kg football at a velocity of 20 m/s. What is their velocity immediately after they catch it
A certain centrifuge produces a centripetal acceleration of magnitude exactly 1230g at a point 11.9 cm from the axis of rotation. Find the number of revolutions per second
Hexagonal close-packed structure. Consider the first Brillouin zone of a crystal with a simple hexagonal lattice in three dimensions with lattice constants a and c. Let Gc denote the shortest reciprocal lattice vector parallel to the c axis of the..
The number density in a container of neon gas is 4.70×1025m?3. The atoms are moving with an rms speed of 640m/s. What is the pressure inside the container
A roller coaster, traveling with an initial speed of 15 meters per second, decelerates uniformly at -7.0 meters per second per second to a full stop
A uniform bar balances 26.6 cm from one end. When a 0.740 kg mass is hung from that end, What is the mass of the bar
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