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A boeing 747 jet with a wingspan of 60.0 m is flying horizontally at a speed of 300 m/s over Phoenix, Arizona, at a location where Earth's magnetic field is 50.0 microT at 85.0O below the horizontal.
What voltage is generated between the wingtips?
A 65- person stands on a scale in a moving elevator while holding a 5.0 mass suspended from a massless spring with spring constant 1.10. What is the reading of the scale on which the person stands
A parallel-plate air capacitor is made from two plates 0.070 square, spaced 9.3 apart. What must the potential difference between plates be to produce an energy density of.
An inductor is connected to a 15kHz oscillator that produces an rms voltage of 7.0V. What is the value of the inductance L
An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate, What is the kinetic energy of the electron just as it reaches the positive plate
A superhero flies 272m from the top of a tall building at an angle of 32 below the horizontal. What is the vertical component of the superhero's displacement.
A cryogenic storage container holds liquid helium, which boils at 4.2 K. Suppose a student painted the outer shell of the container black, Determine the rate of heat loss due to radiation
A wire loop of radius 0.3 m lies so that an external magnetic field of magnitude 0.30T is perpendicular to the loop. The filed reverses its direction, and its magnitude changes to 0.20T in 1.5s. Find out the magnitude of the average induced emf in..
A lithium-5 nucleus is moving at 1.6 Mm/s when it decays into a proton and an alpha particle. What are the magnitude and direction of the proton's velocity
How many electrons would need to be transferred in order to balance these two forces?
1.7 kilograms of water are changed from ice at 0?C into liquid water at 0?C, determine the change in mass of the water
one block of mass m slides without friction on horizontal table. The block is attached to one end of a massless spring of equilibrium length L0 and spring constant k, Define the effective potential energy Veff. Sketch the U and Veff potential energ..
A 1.2 kg mass attached to a spring oscillates with amplitude of 6.3 cm and a frequency of 1.1 Hz. What is its energy of motion.
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