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Two resistors of 60Ω and 40Ω are connected in a series closed circuit with a 120 V source.
a) Create a sketch of this circuit (include correct schematic diagrams for ALL components).
b) Evaluate the current through the circuit.
c) Evaluate the voltage drop across each resistor.
Sodium Chloride gas has molecules that are ionically bonded. The Sodium end has a charge of +1e, calculate the dipole moment
A 80 kg person sits on a 4 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.3 cm in diameter. Find the pressure in pascals exerted on the floor by each leg of the chair, assuming the weight is evenly distributed.
The function = -38 cos(20t) (with in degrees) describes the oscillation ofa certain torsion pendulum (Figure 13-4). Assume the counterclockwise direction to be positive. Find the maximum angle to which the torsionpendulum swings;
An aluminum bar has a length of 2.0 m and transverse dimensions of 3.5 mm and 6.9 mm, What force is required to stretch the bar 1.2 mm
When an electric turntable is first switched on, it accelerates at a constant rate through (+)1.25 revolutions in order to attain its full operating speed of 78.0 rpm.
A 120-V motor has mechanical power output of 3.00 hp. It is 83.0% efficient in convertingpower that it takes in by electrical transmission into mechanical power.
Given that the London dispersion interaction between two atoms or molecules has that general form \(V(r)= -(3/2)
a person with a remote mountain cabin plans to install her own hydroelectric plant. a nearby stream is 3.00 m wide and
find the average speed of the electrons in a 1.7 cm diameter copper power line when it carries a current of 52 a. the
An electric motor rotating a workshop grinding wheel at the rate of 106 rev/min is switched off. Assume the wheel has a stable negative angular acceleration of magnitude 1.50 rad/s2.
a 26.79 g sample of a substance is initially at 23.6 c. after absorbing 1001 j of heat the temperature of the substance
A 0.500 kg block is attached to one end of a 4.00 g string. The other end of the string is secured to the center of a frictionless tabletop. What type of force must the tension in the string provide
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