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Question: An airplane moving at 127.3127.3 m/s north encounters a headwind moving at 22.922.9 m/s south. What is the resultant velocity of the airplane?
An engine flywheel initially rotates counterclockwise at 5.55 rotations per second. Define counterclockwise rotation as positive
a battleship simultaneously fires two shells toward two identical enemy ships. one shell hits ship a which is close by
On a weekend archeological dig, you discover an old club-ax thatconsists of a symmetrical 9.2 kg stone attached to the end of auniform 2.6 kgstick. You measure the dimensions of the club-ax as shown in the figure:
What is the fundamental minimum uncertainty in a dimension of the position of the electron in the previous problem if its momentum is simultaneously deliberate to a precision of plus or minus one percent (two percent total)?
A certain star is 18.6 light years away, Find what distance is travelled according to those on the spacecraft
Suppose a muon produced as a result of cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. What distance is this in the muon's frame
For the 4-particle system find the moment of inertia about the y-axis, that passes through the two masses on the left-hand side of the system.
A certain car battery with a 12.0 V emf has an initial charge of 115 A·h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how various hours can it deliver energy at the rate of 110 W.
A2.85-kg bucket is attached to a disk-shaped pulley of radius 0.121m and mass 0.742 kg. If the bucket is allowed to fall, (a) what is its linear acceleration? (b) What is the angular acceleration of the pulley? (c) How far does the bucket drop in 1.5..
A mass of 0.25 kg is attached to a horizontal spring with a spring constant of 4.0 N/m. Write an expression for the position of the mass as a function of time
There are two identical, positively charged conducting spheres fixed in space. The spheres are 36.2 cm apart, find the initial charge on each sphere
A refrigerator does 18.0 kJ of work while moving 115kJ of thermal energy from inside the refrigerator. what is its coefficient of performance
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