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A 12 V battery, an ammeter, a 5.0 A fuse (which will burn out if more than 5.0 A of current is in the circuit), and several 10.0 lamps are used in an experiment to find the effect of connecting resistances in parallel.
a) Determine the total resistance and current when the number of lamps connected in parallel is 1, 2, 3, 4, 5, and 6.
A spherical brass shell has an interior volume of 1.51 x 10-3 m3. Within this interior volume is a solid steel ball that have a volume of 0.53 x 10-3 m3. What is the volume of mercury that spills out of the hole
What is the spectral separation between the modes of the cavity at around 1300 nm? If the gain curve of the active layer has a width of about 30 nm how many modes are emitted by the laser?
a speaker at an open-air concert emits 600 w of sound power radiated equally in all directions.a what is the intensity
You are driving down the road when you see a deer in your headlights. It takes you 0.5 seconds to react. Once you react you start braking, and you decelerate at 3m/s2. What was your speed before you hit the brakes
A driver travels 10 km east, 20 km north and 50 km in a direction 30 degrees south of west. What is the drivers average velocity if the trip takes 90 minutes
A 2 cm long piece of Si with cross-sectional area of 0.1 cm2 is doped with donors of 1015 cm3, and has resistance of 90 ohms. Calculate the electron drift velocity
A proton is placed in a uniform electric field of 2900N/C. Calculate the proton's acceleration
A box that is 3.5m x 2m x 3.3m is filled with 452 balloons. Each balloon is filled with 4.1887902047864 x 10-6 cm3 of helium. What is the mean free path of a balloon
A 5.78 cm long rod in the shape of a rectangular solid has cross section dimensions 28.7 mm x 42.6 mm. What is the current in the block
An empty rubber balloon has a mass of 10-g. The balloon is filled with helium at a density of 181-kg/m^3. what is the tension in the line
What is the radius of the curve?
A speed skater moving across frictionless ice at 8.6 hits a 5.5 -wide patch of rough ice. She slows steadily, then continues on at 6.3 . What is her acceleration on the rough ice
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