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A uniform magnetic field is perpendicular to the plane of acircular loop of diameter 12 cm formed from wire of diameter 3.5 mmand resistivity of 2.11 x 10-8Ω·m. At what rate must the magnitude of the magnetic field change to induce a9.5 A current in the loop?
A child pedals a tricycle, giving the driving wheel an angular speed of 0.403 rev/s. If the radius of the wheel is R= 0.360 m, what is the child's linear speed
A fire helicopter carries a 620-kg bucket of water at the end of a 20.0-m-long cable. find the force exerted by air resistance on the bucket
A geiger counter registers a count rate of4,000 counts per minute from sample of a radiosotope. twelveminutes later the count rate is 1000 counts per minute.what is thehalf-life of the radiosotope?
A 0.5m^3 adiabatic tank contains steam at 1000 kPa and 350 C, Determine the final steam in the tank and the mass discharged
A dipole is located at the origin, and is composed of charged particles with charge +e and -e, separated by a distance 4 10-10 m along the y axis. The +e charge is on the -y axis. Calculate the force on a proton due to this dipole at a location ..
A convex lens with a 10-cm focal length is in front of a concave lens with a 10-cm focal length. The lenses are separated by 40 cm. Where is the final image with respect to the convex lens
A spring is oscillating with a frequency of 1.7Hz. 3.9 seconds after the spring is released it is -20cm from equilibrium. Find the amplitude of the spring
Suppose that a police car on the highway is moving to theright at 27 m/s, while the speeder is coming up from behind at aspeed of 39 m/s, both speeds being with respect to the ground. Which wave has the greater frequency
It is currently popular for automobiles to use 10% ethanol / 90%gasoline mixtures (‘gasohol’) as fuel. According topopular consensus the main benefit of gasohol use is that it“reduces our dependence upon foreign oil.” Determine the ‘break-even’ fu..
A spaceship leaves Earth traveling 0.70c. A second spaceship leaves the first at a speed of 0.88c with respect to the first. Calculate the speed (including sign) of the second ship with respect to Earth
Consider a Hydrogen atom with the electron in the n = 8 shell. What is the energy of this system, How many subshells are in this shell
carnival ride has a large horizontal steel disc of radius 5m from which cars are suspended by a 6m long chain. the disx is rotated about its axis so that the cars swing out and revolve in a circular path. at operation speed the angle of the chains ..
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