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A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 22.6 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 138 m), the block swings toward the outside of the curve. Then the string makes an angle θ with the vertical. Find θ.
A singly charged ion of mass m is accelerated from rest by a potential difference ?V. What is the ratio of the masses of the ions
A plate carries a charge of -3.11mC,while a rod carries a charge of +2.02mC.How many electrons must be transferred from the plate to the rod,so that both objects have the same charge.
The Mad Hatter moves a tea cup across the table by giving it a push. If it is initially at rest in front of him and comes to a stop across the table directly in front of Alice, find the total work done on the tea cup in the process
Two capacitors C1 = 3.2 ?F, C2 = 13.5 ?F are charged individually to V1 = 19.0 V, V2 = 5.6 V. Calculate the final potential difference across the plates of the capacitors once they are connected
A cyclotron for accelerating deutrons (A deuteron has one proton and one neutron ) has a magnetic field of .5 T and a radius of 1 m. What is the energy of the deuteron
A photon with energy 1.85 eV is absorbed by a hydrogen atom. Find the speed of the electron released from the state in part (a) when it is far from the nucleus
Two charges of identical magnitude exert an attractive force of 5.5 x 10-4 Newton on each other. If the magnitude of each charge is +2.7 C, determine how far apart are the charges
Two wires shown below carry currents of 1 amp out of the page and 9 amps into the page. The two wires are separated by 4 meters. Where is the magnetic field zero due to these two wires?
A constant net force of 75N acts on an object initially at rest as it moves through a parallel distance of 0.60m. What is the final kinetic energy of the object
A series RCL circuit driven at angular frequency %u03C9 = 505 rad/s has a capacitive reactance XC = 851 %u03A9, What is the total impedance
for a projectile launched horizontally which of the following best describes the vertical component of a projectiles
The escape velocity of a bullet from the surface of planet Y is 1727 m/s. Calculate the escape velocity from the surface of the planet X if the mass of planet X is 1.490 times that of Y, and its radius is 0.8790 times the radius of Y (in m/s).
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