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A particle is thrown upwards from the ground. It experiences constant air resistance which produces a retardation of 2 m/s^2. Find the ratio of time of ascent to time of descent.
A quantity of air initially at 1 bar, 300K, undergoes two types of interactions: (a) it is brought to a final temparture of 500K adiabatically by a paddle-wheel work transfer, (b) the same temperature rise is brought about by heat transfer from a ..
the amusement park ride is going to rotate passengers around a vertical axis such that the supporting cables make a theta= 30 degree angle which vertical. Find the needed rate of rotation of the ride
a parcel of land held by the partnership as an investment (basis $3,000), and equipment with a basis of $6,000. Illustrate what is her basis in the land and equipment?
Billy Dee notes that her favorite record rotates at 34 rev/min. At what speed does the point on the record touching the stylus (needle) move when the stylus (needle) is 5.9 cm from the center?
An object is located 19.0 cm in front of a convex mirror, the image being 7.73 cm behind the mirror. How far in front of the mirror is the second object located
A wire runs through a 0.7 T magnetic field as shown. The dashed lines represent the magnetic field, and the solid black line the wire. What is the magnitude of the current through the wire
describe the enery transformations that take place as you swing on a swing.why do you have to keep pumping to keep swinging as high? what happens if you stop pumping
A bullet is fired vertically into a 1.3kg block of wood at rest directly above it. If the bullet has a mass of 29g and a speed of 470m/s, how high will the block rise after bullet becomes embedded in it.
a cylinder with a piston contains 1?2 mole of an ideal gas initially at pressure 4.0 x105 pa and temperature 300k. the
A circular loop of radius 24.9 cm is located in the plane of the paper inside a homogeneous magnetic field of 0.280 T pointing into the paper. Calculate the current induced in the loop during that time
In a local bar, a customer slides an empty beer mug down the counter for a refill. The bartender is momentarily distracted and does not see the mug, With what velocity did the mug leave the counter
A block of unknown mass is attached to a spring of spring constant 5.1 N/m and undergoes simple harmonic motion with an amplitude of 15.4 cm. Calculate the mass of the block
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