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A ball and a thin plate are made from different materials and have the same initial temperature. The ball does not fit through a hole in the plate, because the diameter of the ball is slightly larger than the diameter of the hole. However, the ball will pass through the hole when the ball and the plate are both heated to a common higher temperature. In each of the arrangements in the drawing the diameter of the ball is 1.0 × 10-5 m larger than the diameter of the hole in the thin plate, which has a diameter of 0.11 m. The initial temperature of each arrangement is 27.0 °C. At what temperature will the ball fall through the hole in each arrangement?
An infinitely long uniformly charged cylinder of radius R is shown. (a) Using symmetry arguments, sketch the shape of the electric field of the cylinder. (h) Use Gauss's Law to show that the electric field magnitude within the cylinder is
A particle with charge 94.5 nC is moving in the region where there is a uniform magnetic field of magnitude 0.45 T pointing in the negative x-direction. What is the magnetic field vector in vector notation
The electric field inside a 50.0?cm? long copper wire is 5.00mV/m .What is the potential difference between the ends of the wire
A certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.8 × 10-11 s. How many wavelengths are there in one pulse
Two point charges q_1 = 2.10 nC and q_2 = -6.10 nC are 0.100 {rm{ m}} apart. Point A is midway between them; point B is 0.080 {rm{ m}} from q_1 and 0.060 {rm m} from q_2 Take an electric potential to be zero at infinity.
A hydrogen atom undergoes a transition from a 2p state to the 1s ground state. In the absence of a magnetic field, the energy of the photon emitted is 122nm. The atom is then placed in a strong magnetic field in the z-direction.
Two acrobats are balanced on a very thin rod spinning atop a thin pole. The first acrobat is 45.0 kg at a distance of 2.50 meteres from the pole. What is the moment of inertia of the system
Suppose that water waves coming into a dock have a velocity of 1.7 m/s and a wavelength of 2.6 m. With what frequency do these waves meet the dock
A steel rivet 1.50 cm long and 1.5 mm radius has one end attached to a wall. If the other end is subjected to a shearing force of 6.0 × 104 N, what is the downward deflection
q1. the wire is made up of atoms with valence 2 and molecular mass 80 gmole where u 1.5605 times 10-27 kg is the mass
q1. a 75-kg person sits on a 3.7-kg chair. each leg of the chair makes contact with the floor in a circle that is 1.5
Two circular loops are centered on the x-axis parallel to the yz-plane. The smaller loop is stationary with radius r=0.01m, and resistance R=0.003Ohms. The larger loop has radius, s=0.1m, carries current I=1.5A, and moves towards the smaller loop ..
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