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Question1
An ocean liner leaves New York City and travels 32.0° north of east for 299 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions?
Question2
if an airplane propeller rotates at 2000 rev/min while the airplane flies at a speed of 480 km/h relative to the ground, what is the linear speed of the tip of the propeller, at radium 1.5 m as seen by
a) the pilot
b) an observer on the ground (the plane's velocity is parallel to the propeller's axis of rotation)
Question3
A train on one track moves in the same direction as a second train on the adjacent track. The first train, which is ahead of the second train and moves with a speed of 32 m/s, blows a horn whose frequency is 124 Hz. If the frequency heard on the second train is 135 Hz, what is its speed?
A space traveler weighs 565 N on earth. What will the traveler weigh on another planet whose radius is 3 times that of earth and whose mass is twice that of earth.
An electron ( mass = 9.11×10?31kg ) leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, If the accelerating force is constant, compute the acceleration of the electron
The 4 block in the figure is attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended and the tension in the upper string is 77.
from the scattering of sunlight, J. J. Thomson calculated the classical radius of an electron as having the value 2.82 ×10-15 m. Sunlight with an intensity of 500 W/m2 falls on a disk with this radius.
A 200 mL volume of neon gas is at 1.2 atm of pressure. If it was heated from 250 K to 500 K what is the volume if the pressure is held constant
A large truck collides head-on with a small car. The car is severely damaged as a result of the collision. According to Newton's third law, how do the forces acting between the truck and car compare during the collision?
In the Soapbox Derby, young participants build non-motorized cars with very low-friction wheels, What is the maximum possible acceleration of a car moving down this stretch of track
A double slit experiment produces 25 highlight spots with total distance y = 21cm, What is the wavelength of the laser source
A company uses a process cost accounting system and the weighted average method for inventory costs. Calculate the equivalent units of production for direct labour for the year.
A beam contains 4.0 108 doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 1.3 105 m/s
A 374-kg sailboat has an acceleration of 0.643 m/s2 at an angle of 58.9 ° north of east. find the direction of the net force that acts on the sailboat
A fireman 44 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22° above the horizontal. If the speed of stream as it leaves the hose is 40m/s, at what height will stream of water strike the buil..
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