Learn more about our help with Assignments: Electric Circuits
Search & Filtering
Electric Circuits
At the low point in its swing, a pendulum bob with a mass of 0.2 kg has a velocity of 5m/s. How high will the bob swing above this low point?
Electric Circuits
A 0.2 kg ball is twirled at the end of a string in a horizontal circle with a radius of 0.6 m. The ball travels with a constant speed of 4.0m/s. What are the values of the horizontal and vertical components of the tension in the string?
Electric Circuits
3.1A tungsten filament is 35 mm long and has a radius of 7.5 mm. Calculate the current emitted from this filament at temperatures of 2400 °C and 2500 ºC.
Electric Circuits
Farmer Crockett is preparing tomato seedlings for his spring planting by growing the small plants over five 46-ohms strip heaters wired in parallel. a) How much current does each heater draw from a 120-V line? b) How much current do they all have together?
Electric Circuits
Timmy is playing with a new electonics kit he has recieved for his birthday. He takes out four resistors with resistances of 15ohms, 20ohms, 20ohms, and 30ohms. a) How would Timmy have to wire the risistors so that they would allow the maximum amount of current to be drawn? Calculate the total resistance in this circuit. b) How must he wire the resistors so that they draw a minimum amount of current? Calculate the total resisance in this circuit.
Electric Circuits
why do we need to measure extremely small interval of times
Electric Circuits
A piano wire of length 2.5 m vibrates so that one-half wavelength is contained on the string. If the frequency of vibration is 67 Hz, the amplitude of vibration is 4.0 mm, and the density is 11 g/m, how much energy is transmitted per second down the wire?
Electric Circuits
A storm generates large waves in the Pacific Ocean. On november 25, 208, 6pm, swell with a wave height of 5m reaches an exposed location at the coast of Southern California. At 6 am of the next day, the wave height is 4m. The water depth within 100km of the coast is 1000m and 3000m everywhere else. All waves have a steepness of ak=0.25.
a) How far offshore were the waves generated by that storm?
b) At what date and time do waves with a height of 2m reach the same location at the coast?
c) How long does it take a tsunami with a wave length of 120km to travel the same distance (travelling perpendicular towards shore)?
a) How far offshore were the waves generated by that storm?
b) At what date and time do waves with a height of 2m reach the same location at the coast?
c) How long does it take a tsunami with a wave length of 120km to travel the same distance (travelling perpendicular towards shore)?
Electric Circuits
. Two capacitors, C1
# 5.00 %F and C2
# 12.0 %F, are
connected in parallel, and the resulting combination is
connected to a 9.00-V battery. (a) What is the equivalent
capacitance of the combination? What are (b) the potential difference across each capacitor and (c) the charge
stored on each capacitor?
# 5.00 %F and C2
# 12.0 %F, are
connected in parallel, and the resulting combination is
connected to a 9.00-V battery. (a) What is the equivalent
capacitance of the combination? What are (b) the potential difference across each capacitor and (c) the charge
stored on each capacitor?
Electric Circuits
(a) How much charge is on each plate of a 4.00-%F capacitor when it is connected to a 12.0-V battery? (b) If this
same capacitor is connected to a 1.50-V battery, what
charge is stored?
same capacitor is connected to a 1.50-V battery, what
charge is stored?
