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Say you have a piston falling in a cylinder filled with water. The water is plumbed from the bottom of the cylinder to the top, What would the kinetic energy be at the end of a 20m descent
if turns ratio of primary to secondary coil of transformer is 1:3 and voltage on primary coil is 10 volts. what is voltage of seconday coil
What is the center of gravity? How can you find it in various objects? How dooes it effect the equilibrium of an object, What are the types of stability
A large storage tank, open at the top and filled with water, develops a small hole in its side at a point 16.4 m below the water level. Determine the diameter of the hole
Three point charges, -6.05 10-9 C, -9.75 10-9 C, and +7.50 10-9 C, are fixed at different positions on a circle. What is the radius of the circle
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 33 500 V. find the electron speed just before the electron strikes the sc
A 1.10kg , horizontal, uniform tray is attached to a vertical ideal spring of force constant 190N/m and a 295g metal ball is in the tray. How fast is the ball moving just as it leaves the tray
A block, mass m, slides down a ramp inclined 27 degrees above the horizontal. Calculate the speed of the block if it begins at rest
an ideal gas occupies a volume of 1.0 cm at 20 degrees C, and atmospheric pressure. Determine the number of molecules of gas in the container
A 1.9kg block slides along a frictionless surface at 1.7m/s . A second block, sliding at a faster 4.9m/s , What was the mass of the second block
A car sounding its horn (rated by the manufacturer at 600 Hz) is moving at 20 m/s toward the east. What frequency will he hear the assuming that the speed of sound is 343 m/s
A 110 pound person climbs the benches from the bottom to the top of Sun Angel Track Stadium. Calculate the minimum amount of glucose (in grams) that would need to be oxidized
An artillery gun is firing a shell with the initial velocity V0 =250 m/s at an angle 1 =60o to the horizontal. Find the time interval t between shots
which cell will have the fastest gain of water (rate of osmosis) and why also explain why plants appear wilted when the surrounding solution is isotonic.
A 1500 kg car is headed directly for a brick wall when the driver realizes the danger and slams on the brakes. The car's initial speed is 32 m/s, Determine how far the car travels while skidding to
Calculate how long it will take a ball to hit the ground if dropped from a height of 44 m,
The weights of the worker and crate are 912 and 1590 N, respectively. What is the tension in the cable above the worker
A box of weight Fg=2N accelerates down a rough plane that isinclined at an angle %u03C6=30 degrees above the horizontal, What is the work Wgrav done on the box by gravity
A copper bar 2.5 m long has a circular cross section of radius 2 cm. One end is kept at 80 oC and the other end is kept at 0 oC. what is the thermal current in the copper bar
In the drawing, the weight of the block on the table is 418 N and that of the hanging block is 205 N. What is the acceleration of the two blocks
A capacitor has a capacitance of 2.48 10-8 F. In the charging process, how many electrons have been transferred
A certain black body radiates 1200 W at a temperature of 2000 K. how much power does this body radiate at 3000 K
The function y(x,t) = (27.0cm)cos(pix-22pit) with x in meters and t in seconds, What is the transverse speed for a point on the string at an instant when that point has the displacement y = +24.0 cm
A particle has a charge of +3.1 ?C and moves from point A to point B, a distance of 0.28 m. Find the magnitude of the electric force that acts on the particle
A capacitor with an initial potential difference of 100 V is discharged through a resistor when a switch between them is closed at t = 0. At t = 10.0 s, What is the time constant of the circuit