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Two resistors connected in series have an equivalent resistance of 774.9 ohm. When they are connected in parallel, their equivalent resistance is 128.2 ohm. Find the resistance of each resistor.
A 755 gram grinding wheel 25.5 cmin diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.), What torque does friction exert while this wheel is slowing down
Positively charged aluminum ion, Al3+, has a mass of 4:50 1026 kg. After being accelerated through a potential dierence of 650 V, Calculate the radius of the path of the ion in the eld
Consider the reaction 4He + 40Ca -> 3H + 21Sc Find the minimum laboratory kinetic energy for the 4He projectile if 40Ca is stationary
The exhaust temperature of a Carnot heat engine is 250°C, What is the intake temperature if the efficiency of the engine is 27.0%
A plane accelerates down a runway. Markers beside the runway are 9.5 m apart. The plane moves between two adjacent markers in 0.182 s. Estimate the instantaneous speed of the plane
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 3.6 cubic meters of sea water. What is the buoyant force acting on the object
Equipotentials between two parallel lines with a floating circular electrode. I dont need to know the exact potentials, What is the potential of the circular electrode
How far did you travel on this trip? What was your average speed.
One solenoid is centered inside another. The outer one has a length of 50.0 cm and contains 6750 coils, What is the mutual inductance of these solenoids
The work done by an external force to move a -8.90charge from point a to point b is 1.80×10?3 . If the charge was started from rest and had 4.87×10^4 of kinetic energy when it reached point b, what must be the potential difference between a and b?
A vibrating stretched string has length 49 cm, mass 12 grams and is under a tension of 44 newtons. What is the frequency to the nearest Hz of its 3rd harmonic?
Suppose a 65 kg person stands at the edge of a 6.5 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1850 kg m2. Calculate the angular velocity of the turntable
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