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If the blowing wind reverses direction while maintaining the same strength, where does the ball fall when it is kicked with the same initial speed?
A box is sliding down a plane inclined at an angle of 20 degrees from the horizontal. Find the acceleration of the box, neglecting friction.
Here k is Boltzmann's constant, e is the charge on an electron (magnitude), and T is the absolute temperature. Let at room temperature (t = 20 degree C).
If the wire is heated to 50.0°C and the 10 V potential difference is maintained, what is the resulting current in the wire?
Find all the currents and potential differences in the following circuit.
A light bulb of unknown resistance is connected in series with a 9.0 Ohm resistor to a 12.0 V battery. The current in the bulb is 0.80 A.
Determine the voltage drop (from top to bottom) across the 16 ohm resistor in the circuit shown. Determine the voltage drop across the 4 ohm resistor.
Refer to the following circuit. Assume ideal voltage source - find VBG and I2.
The current is 4.86mA at 0.725 ms after the connections is completed. After a long time the current is 6.45 mA.
When the current ion the inductor has half its maximum value, what is the charge on the capacitor and what is the energy stored in the inductor?
What is the current in the resistor during the 1.99 ms reduction if the resistor value is 330 ohms?
If the magnetic field is decreased steadily in strength, will there be an induced current in the loop? if so in which direction (cw or ccw)?
The resistors, however, may not be exactly the same; that is, their tolerances are such that the resistances may not be exactly 5 kO.
A 200-volt electromotive force is applied to an RC series circuit in which the resistance is 1000 ohms and the capacitance is 5 X 10^-6 farad.
A square film of Nichrome, an alloy of nickel and chromium, has copper electrodes deposited on two opposite edges.
Two scientists want to measure the resistivity, R(T), of a material as a function of temperature. T
What is the resistance of a Nichrome wire at 0.0 deg. Celsius if its resistance is 180.00 ohms at 11.5 deg. Celsius? Temperature coefficient for Nichrome.
The other input array will contain the resistive value (in ohms) of each of the six resistors as: 1, 10, 100, 1000, 10,000.
A circuit consists of three resistors in series, with values 200 ohms, 100 ohms and 60 ohms. The circuit is connected to a battery with an output of 36 volts.
If the input signal is 20 mV, RF = 68 kohm and R1 = 2.7 kohm in an uA741 op-amp configured using the non-inverting input.
The switch at the z=0 end has been closed for a very long time so that the system is in the DC steady state.
Calculate the current I if Rf =10 mOhm (milli-Ohms), R1 = 90 kOhm, R2=10 kOhm, and V= 0.1 V.
What does it mean for something to be proportional to something else? What does it mean to be inversely proportional?
What is the maximum value for current through R_2 and how much time is needed to reach half of that maximum value?
A circuit consists of a 48 volt battery at a telephone company central office which is connected to a twisted pair telephone line.