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I have a simple circuit, with two resistors connected in series, R1 at 10 Ohms, and R2 at 100 Ohms.
Would there be a difference in their total resistance if I just measure it across both of them, and when I add, but not turn on, a power source. Would the fact that a power source, even when turned off, has a bit of internal resistance cause the overall resistance of the circuit to go up?
A m = 1.30-kg block is pushed against a spring with negligible mass and force constant k = 580 N/m, How far does the object travel up the incline before starting to slide back down
a carnot efficiency engine operating between a reservoir of liquid mercury at its melting point and a colder reservoir extracts 15.0 J of heat from the mercury, What is the temperature of the colder reservoir
A 150.0 Kg block travels with speed of 10.0 km/h and another block of 100.0 Kg traveling at 5.0 km/h. as shown in the figure. The blocks undergo an elastic collision. The velocity of the center of mass after the collision is (in km/h):
Suppose your lab partner has a height L of 170 cm (5 ft, 7 in) and a weight w of 680 N (153 lb). find the distance of your lab partner's center of gravity from the left end of the board
Light of wavelength 580nm illuminates a diffraction grating. The second-order maximum is at angle 41.5 degrees
Water flowing through a 1.8cm-diameter pipe can fill a 300L bathtub in 6.4 min. What is The speed of the water in m/s
Over a time interval of 1.89 years, thevelocity of a planet orbiting a distant star reverses direction,changing from +20.0 km/s to -17.7 km/s. Find the following values, include the correct algebraic sign with your answers to convey the directions..
Point A is located at 0.50 m away from a charge -2.30 x 10-9 C. point b is located 0.90 m away from the charge. What is the electric potential difference V B- VA between these two points
During a very quick stop, a car decelerates at 7.2 m/s2. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires, How long does the car take to stop completely in seconds
Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +3.7 m/s. Find the ratio m1/m2 of the masses of the particles
Radio stations are usually identified by their frequency. One radio station in the middle of the FM band has a frequency of 99.0 MHz. What is its wavelength?
Compute the x-coordinate of the center of mass XCM. Suppose that the mass of the rod is small enough to be ignored in your calculation. Your answers must be accurate to within 0.1 cm.
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