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1. Suppose that you measure the resistance of a resistor using a voltmeter, a current meter. and a battery. Suppose that the voltmeter reads 0.2 % high and the current meter reads 0.3 % low. What will be the percent error in your measurement of resistance. (Hint: If you do not know how to work this problem with abstract mathematics, try making up a numerical example that meets the given conditions.)
2. Why did you have such a large percent difference in the resistance of the lamp filament with the two different applied voltages? What physical condition of a conductor must remain constant for Ohm's law to apply?
You want to photograph a circular diffraction pattern whose central maximum has a diameter of 1.2cm. How far behind the pinhole should you place the viewing screen
A bottle has a mass of 35.00 g when empty and 98.44 g when filled with water. When filled with another fluid, the mass is 88.78 g. What is the specific gravity of this other fluid
q1. an airplane is flying with the velocity of 85.0 ms at an angle of 20.0 degrees above the horizontal. when the plane
consider two long straight horizontal wires that are oriented so that they are perpendicular to each other. the two
Calculate the earth’s radiative temperature (TE) for an albedo value of 0.27, 0.30 and 0.33. Then estimate the surface temperature using a reasonable estimate of the temperature increase due to the greenhouse effect. Summarize the scientifically vali..
A metal surface is susceptible to a photoelectric threshold frequency of 8.529 x 10 Hertz. compute what the speed of the fastest electron ejected
A 4 kg mass is connected to a spring (k = 730 N/m) platform which undergoes simple harmonic motion in the vertical direction. The amplitude of the oscillation is 5 cm. At t=0 the box is 5 cm above the equilibrium position.
A block of the same weight as the meter stick is suspended from the stick, as shown, at a distance x from the wall. What is the minimum value of x for that the stick will remain in equilibrium.
Assume that a 6 volt energy source is in a circuit that has a resistance of 10ohms. Determine the current and power
An image of the moon is created by reflection off of a concave mirror at a point 6.0cm from the mirror. where will the image be
An automobile engine takes in 4000 J of heat and performs 1100 J of mechanical work in each cycle. How much heat is "wasted" in each cycle
What is the surface charge density on the inner surface of the dielectric?
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