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An experiment that can be utilized to measure the velocity of a bullet is to have two cardboard disks attached to a rotating shaft some distance apart and to gauge the angular separation of the holes made by the bullet. In such an experiment, two cardboard disks are placed 0.534 m apart on a shaft that is rotating at 3000 rpm. The bullet is fired parallel to the axis and the angular separation of the holes is gauged to be 22.0. What is the speed of the bullet?
Calculate the terminal voltage for a battery with an internal resistance of 0.650? and an emf of 8.00V when the battery is connected in series with an 98.0?? resistor
Body fat has an energy content of about 38,000 Joules per gram. Suppose your weight has been constant, how much weight will you have gained
An inductor, a capacitor, and a 64.0-? resistor are connected in series with an AC generator; the generator produces an RMS voltage of 90 V. what is the average power output of the generator
Sam pushes a 10.0-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 3.0 N starting from rest. What is the kinetic energy of the sack after Sam has pushed it a distance of 25 cm
Every 2 seconds, identical wave pulses are being sent along the string. At t = 3 seconds, you took a snapshot of the string and found the wavelength to be 10m. What's the velocity of the pulse?
A car takes 11 s to go from v = 0 to v = 80 m/s at about constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value must you use for a.
an obnoxious brat assigns his 0.0227-kilogram pet mouse mickey the role of stunt mouse by stuffing him into a spring
a 1.10m long straight wire has a resistance r 14.0 ohm and is connected to a 3.00v battery. the wire is located in a
The electricity received at an electricsubstation has a potential difference of 2.80 105 V. Ifthe required output is 440 V, what should be the ratio of the turns of the step-down transformer
When 1.0 kg of coal is burned, about 3.0 x 107 J of energy is released. how many kilograms of coal must be burned to produce the same energy as 0.79 kg of 92U235
A 110 kg mail bag hangs by a vertical rope 4.0 m long. A postal worker then displaces the bag to a position 2.0 m sideways from its original position, always keeping the rope taut. As the bag is moved to this position, how much work is completed by t..
What is the pressure change for water that flows through a steel pipe of diameter 0.15 m at a velocity of 2 m/s? If the flow were laminar regime what would be the pressure change? How much energy per mass is required to pump the fluid in turbulent..
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