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An astronaut is connected to her spacecraft by a 25 meter long tether cord as she and the spacecraft orbit Earth in a circular path at a speed of 3.0 x 10^3 m/s. At one instant, the voltage measured between the ends of a wire embedded in the cord is measured to be 0.45 Volt. Suppose the longer dimension of the cord is perpendicular to the vertical component of Earth's magnetic field at that instant.
(a) Find the magnitude of the vertical component of Earth's field at this location?
(b) Does the measured voltage change as the system moves from one location to another? Explain.
A car drives north at 42 mi/h for 10 {rm min} and then turns east and goes 5.0 {rm mi} at 62 mi/h. at last, it goes southwest at 30 mi/h for 6.0 {rm min}.
A golfball rolls off a horizontal cliff with an initialspeed of 11.4 m/s. The ball falls a vertical distance of 15.5m intoa lake below. How much time does the ball spend in the air
Two men decide to use their cars to pull a truck stuck in mud. What is the net forward force exerted on the truck in the direction it is headed
A 35.0-kg seal at an amusement park slides down a ramp into the pool below. The top of the ramp is 1.80 m higher than the surface of the water, and the ramp is inclined at an angle of 30.0° above the horizontal. The seal reaches the water with a s..
A spring is extended by 30mm when a force of 1.5 N is applied toit. if the spring was unstretchedbefore applying the mas calculate the loss in the potential energyof the mass
The positive muon , an unstable particle, lives on average 2.20×10?6 (measured in its own frame of reference) before decaying. what average lifetime is measured in the laboratory
a ski gondola is connected to the top of a hill by a steel cable of length 520 and diameter 1.3 . as the gondola comes
A 72 man's arm, including the hand, can be modeled as a 78 -long uniform cylinder with a mass of 3.7, by how much does he raise his center of gravity
Consider a tiny bead of mass 10-6 g on a short wire of length 10-6 m as equivalent to the quantum model of ‘particle in a box
Carbon 12 is defined such that 12g is one mole. So if a diamond is 37.5 g, how many moles of carbon are in it? How many molecules of carbon are in it
What is the average speed of the Jet Aircraft during takeoff?Compute the distance covered by the Jet Aircraft during the takeoff? What is the acceleration of the Jet Aircraft during the takeoff? Compute the force acting on the Jet Aircraft during the..
Aingly-ionized lithium has a nucleus of charge +3e and two electrons. Use the variational principle to estimate the ground-state energy. Now consider a nucleus of charge Ze with two electrons. Use the variational principle to estimate the ground-st..
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