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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.
A swimmer at the bottom of a pool 3m deep looks up and sees a circle of light. If the index of refraction of the water in the pool is 1.33, find the radius of the circle.
A plane flies from base camp to Lake A, 340 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 240 km at 30.0° west of north from Lake A. Graphically find the distance and direction from Lake B to..
Find what is the maximum speed with which a 1350 kilogram car can round a turn of radius 75 meter on a flat road if the coefficient of static friction between road and tires is 0.60
Assuming the cost of energy from the electric company is $0.065/kWh. Find the cost per day of operating a lamp that draws a current of 1.45 Amp from a 110 Volt line
A child sits on a rotating Merry-go-round, 2.3 m from its center.If the speed of the child is 2.2 m/s, what is the minimumcoefficient of static friction between the child and the merry-go-round that will prevent the child from slipping?
Consider two identical balls. One is hanging on a spring scale in the laboratory, Determine which ball has a larger mass
The tires on a new compact car have a diameter of 2.0 feet and are warranted for 56,000 miles. Find the angle (in radians) through which one of these tires will rotate during the warranty period
A tennis ball is thrown straight up with an initial speed of 20 m/s, What is the ball's acceleration at its maximum height
ravinder and mohender were discussing the role of physics in society. ravinder said to mahender that physics does not
A certain automobile engine delivers 2.24 104 W (30.0 hp) to its wheels when moving at a constant speed of 21.0 m/s ( 47 mi/h). What is the resistive force acting on the automobile at that speed?
A researcher observes hydrogen emitting photons of energy 2.55eV. What are the quantum numbers of the two states involved in the transition that emits these photons
A charge -1.1 × 10^-5 C is ?xed on the x-axis at 9 m, and a charge 8 × 10^-6 C is ?xed on the y-axis at 4 m. Calculate the electric potential at the origin
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