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An astronaut is connected to her spacecraft by a 29-m-long tether cord as she and the spacecraft orbit Earth in a circular path at a speed of 4.1 103 m/s. At one instant, the voltage measured between the ends of a wire embedded in the cord is measured to be 0.48 V. Assume the long dimension of the cord is perpendicular to the vertical component of Earth's magnetic field at that instant. What is the magnitude of the vertical component of Earth's field at this location? Does the measured voltage change as the system moves from one location to another? Explain.
The middle C string on a piano is under a tension of 744 N. The period and wavelength of a wave on this string are 3.82 10-3 s and 1.26 m, respectively. Find the linear density of the string.
Consider a copper wire (mass density 8.9 g/cc, resistivity 1.7E-8 ohm-m) with a diameter of 0.43 mm, How many meters long is this wire
question in a series rl circuit a 1.2-khz oscillating emf has amplitude epsilonmax 24 v and the current amplitude is
What is the change in kinetic energy of the puck
New physics student having trouble with hw, not sure how to set this up or find the answer. Throw a ball straight up with an initial vel. of 18.5m/s. if ball is caught at the same height it was released, and then compute the max. Height achieved b..
A 40 kg crate is pulled across the ice with a rope. A force of 100 N is applied at an angle of 30 degrees with the horizontal. Neglecting friction.
A package of supplies is to be dropped from an airplane so that it hits the ground at a designated spot near some campers, What should the angle be between the horizontal and the pilot's line of sight to the drop point
when the cylinder is fully immersed does the buoyant force acting on it depend on how far below the surface of the
A small 11.0 g- bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. What is the angular speed of the bar just after the frisky insect leaps
The fundamental vibrational frequency of HCl molecule is v=2990.946cm^-1 and its equilibrium dissociation energy is De=445.0 kJ/mol. Evaluate the frequency for v=0-->5 pure vibrational transition in HCl in Hz assuming it as a Morse oscillator.
two semiconductor materials have exactly the same properties except that material a has a bandgap of 0.8ev and material
A hiker walks 3.50 km at an angle of 45.0 degrees north of west. After that the hiker walks 1.5 km south. What is the magnitude and direction of hiker's totally displacement.
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