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1. Why do electrons (blue dots) move? Draw a diagram of the battery, label the flow of electrons. The flow of current (+) is opposite; draw this and note if toward or away from + terminal of the battery.
2. What does the Ammeter (on the left) measure? How is this shown in the sim?
3. What role do the "green dots" in the resistor play in the sim? What do you think they represent? What does this tell you about the effect of resistors in a circuit?
4. Increase the resistance (# green dots). What affect does this have on temperature? WHY?
5. When the circuit gets hotter, what affect does this have on current? Explain using kinetic-molecular theory.
6. To make the circuit "cold", what do you need to do? WHY?
7. Describe the relationship between voltage and temperature.
Calculate the angular displacement associated with the first order (m=1) diffraction pattern for visible light if the slit density is 8000 lines/cm
An athlete whirls an 8.81 kilogram hammer tied to the end of a 1.2 meter chain in a simple horizontal circle where you should ignore any vertical deviations. Obtain the centripetal acceleration of the hammer
A ball on the end of a string is whirled around in a horizontal circle of radius 0.300 m. The plane of the circle is 1.10 m above the ground. Find the radial acceleration of the ball during its circular motion
It's possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the upper arm; the calculation is similar. A person's leg measures 39 cm between the knee and the hip, with an average leg diamete..
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
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
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 40 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the b..
A disk-shaped merry-go-round of radius2.63 m and mass 135 kg rotates freely with an angualr speed of .621rev/s. What is the final angular speed of the merry-go-round
Three particles of mass 8 kg, 5 kg, and 3 kg are connected by rigid rods of negligible mass lying along the y axis and are placed at 5 m, ?3 m, and ?7 m, Find the linear speed of the top particle of mass
You start with 20 gallons of gasoline at 50 F. The temperature of the gasoline changes and the volume drops to 19.78 gallons. What is the temperature of the gasoline now
A railroad car of mass 2.54 x 104 kilogram is moving with a speed of 3.88 m/s. It collides and couples with three other coupled railroad cars, Obtain the speed of the four cars after the collision
A wind turbine consists of three metal rods, each of mass 98kg and length 6.8 m connected at their ends to a central axle, asshown below. What is the momentof inertia of such a turbine
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