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A roller-coaster car has a mass of 492 kilogram when fully loaded with travelers.
(a) If the car has a speed of 20.3 m/s at point A, find the force exerted by the track on the car at this point?
(b) Find the maximum speed the car can have at B and still remain on the track?
A counter with negligible background gives exactly 10,000 counts in a 1-s period when a standard source is in place. What is the counter dead time
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. A second small object, with a charge of4.2 uC, is placed 1.2m vertically below the first charge. Find a) the electric field at the position of the upper charge..
An AC voltage with an amplitude of 114 V is applied to a series combination of a 247 ?F capacitor, Calculate the power dissipated by the circuit at a frequency of 60.0 Hz
multiple-Concept Example 11 deals with a situation that is similar, but not identical, to that here. When 4710 J of heat are added to a 0.261-m-long silver bar, What is the mass of the bar
A parallel-plate capacitor with plates of area 2.15 x 10-4m2 is being designed to have a capacitance of 1330 pF. What plate separation is required if the spacebetween the plates is filled with air
A long, straight wire carries a current I1 = 3.5 A and is a distance h =15 cm from a rectangular current loop that carries a current I2 = 1.5 A. What is the force exerted by the current loop on the wire
An electron, starting from rest, accelerates through a potential difference of 413 V. What is the final de Broglie wavelength of the electron, assuming that its final speed is much less than the speed of light
A proton with a speed of 2.5 × 106 m/s is shot into a region between two plates that are separated by a distance of 0.16 m. What must be the magnitude of the magnetic field
What is the beat frequency in Hz. A force of magnitude P pushes the block forward and downward as shown in the figure below. suppose the force is applied at an angle of 24.0° below the horizontal.
"The drawbridge then starts to rise and the dancer continues to stand on one leg. The drawbridge stops just at the point where the dancer is on the verge of slipping. What is the magnitude of the frictional force now? The answer should not dépend on ..
Find the resultant magnetic force exerted by the long wire on the square current loop in the figure below if I1 = 8.72 A and I2 = 4.12 A
he primary coil of a transformer has N1 = 390 turns, and the secondary coil has N2 = 2 260 turns. what rms voltage is developed across the secondary coil
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