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If you close the switch, which quantity reaches its maximum value first: current in the circuit or voltage across the inductor? As the current builds up in the circuit, what happens to the induced voltage across the inductor? Explain.
110 grams of boiling water (temperature 100° C, heat capacity 4.20 J/gram/K) are poured into an aluminum pan whose mass is 1000 grams and initial temperature 24° C (the heat capacity of aluminum is 0.9 J/gram/K).
You and a friend are bicycling from Sprindale to Bentonville. You maintain a constant speed for the entire distance trip. Your friend, Who gets to Bentonville first
A 82 kg diver steps off a 13 m tower and drops from rest straight down intothe water. If he comes to rest 4.5 mbeneath the surface, determine the average resistance force exertedon him by the water.
Suppose that you'd like to find out if a distant star is moving relative to the earth. The star is much too far away to detect any change in its brightness as it moves toward or away from the earth. Instead we can use the Doppler effect to determi..
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.5 cm-3, and their speed is 657 km/s. Find the current density of these protons
A flashlight on the bottom of a 3.60 m deep swimming pool sends a ray upward, What angle (in air) does the emerging ray make withthe water's surface
A skier starts from rest at the top of a hill that is inclined at 9.3° with respect to the horizontal. How far does the skier glide along the horizontal portion of the snow before coming to rest
A soccer ball whose radius is 11 cm rolls a distance of 10 min 3.50 s. It rolls without slipping. What is the angular speed of the ball
In each of the four scenarios, a large bat lets out a short burst of ultrasonic sound, which the smaller bat hears a moment later. what return frequency will the large bat detect
What would be the electric current intercepted by the total surface area of the planet?
Water flows in a vertical pipe of 0.15 m diameter at a rate of 0.25 m3/s , and has a pressure of 250 kPa at an elevation of 25 m. Determine the velocity head and pressure head at elevations of 20 m and 50 m.
An electron is trapped in a one-dimensional infinite well and is in its first excited state. What is the width of the potential well
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