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Q1. Water at a temperature of 85f, exhibits which of these physical properties
a. has no definite shape
b. has no definite volume
c. has particles that do not move
d. has particles that move independently
Q2. A motor keep a Ferris wheel (with moment of inertia 8.29 × 107 kg • m2) rotating at 6.5 rev/hr. When the motor is turned off, the wheel slows down (since friction) to5.2 rev/hr in 27 s.
What was the power of the motor that kept the wheel rotating at 6.5 rev/hr in spite of friction?
A 34.7 m long aluminum wire at a temperature of 24.3 oC has a radius of 0.295 mm. what is the resulting current in the wire
a circus performer hangs a 3.0kg hoop of diameter 1.0m over a nail. with what frequency does it oscillate about the nail
The electric field between two square metal plates is 130 N/C. The plates are 1.0 m on a side and are separated by 3.0 cm, Calculate the charge on each plate
A m = 1.30-kg block is pushed against a spring with negligible mass and force constant k = 580 N/m, How far does the object travel up the incline before starting to slide back down
The cone of a loudspeaker vibrates in SHM at a frequency of 262 Hz. The amplitude at the center of the cone is xm = 1.5 x 10-4m, What is its maximum velocity and acceleratio
The shell, with radius R and negligible thickness, has net charge - 4.00 q. Find an expression for the electric field strength outside the sphere
A 94.00 water skier floating in a lake is pulled from rest to a speed of 10 in a distance of 24. What is the net force exerted on the skier, assuming his acceleration is constant.
Many communications satellites orbit the earth in geostationary orbits. (They appear to remain in the same positions in the sky for observers on the earth's surface.) If such a satellite orbits at a height of 40,000 km, estimation the time delay in a..
A 1.90 × 102-kg sculpture hangs from a horizontal rod that serves as a pivot about which the sculpture can oscillate. How far is the pivot from the sculpture\'s center of mass
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
A large capacitance of 2.00 mF is needed for a certain application, What is the maximum voltage that can be applied
An airplane is flying in a horizontal circle at the speed of 542 km/h. If the wings of the plane are tilted 33.0° to the horizontal, what is the radius of the circle in that the plane is flying? Suppose that the required force is provided entirely by..
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