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With a 1400 Mohm resistor across its terminals, the terminal voltage of a certain battery is 2.56V. With only a 5.04ohm resistor across its terminals, the terminal voltage is 1.72V.
(a) Find the internal emf of this battery.
(b) Find the internal resistance of this battery
(c) What would be the terminal voltage if the 5.04ohm resistor were replaced by a 7.04ohm resistor?
Two grapes are given equal charges and held apart at a distance of 2.0 m. Find the magnitude of the charge on each grape
a base for a building column measures 18.0 in. by 18.0 in. on a side and 12 in. high. compute the cross-sectional area
You and your friends find a rope that hangs down 18m from a high tree branch right at the edge of a wide river. How long must you hang on if you want to stay dry
A 3.00 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 2.20 m/s2, find out the force exerted by the rope on bucket of water.
what was (a) the negative charge in coulombs on one of them and (b) the positive charge in coulombs on the other.
A rectangular container measuring 10cmx20cmx25cm is filled with gas. What is the mass volume of water in kilograms.
A turntable with a moment of inertia of 4.8 kg · m2 rotates freely with an angular speed of 33 1/3 rpm. Calculate the angular speed of the turntable
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
For a damped oscillator with a mass of 240 g, a spring constant 59 N/m and a damping coefficient of 75.00 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 12 cycles.
Two overlapping beams of light of different wavelength ?a = 840 nm and ?b = 460 nm co-propagate through air, What is the angle between the beams travelling through the material
The speed of light is 1.10 times as large in material A than in material B. Determine the ratio na/nb of the refractive indices of these materials
aircraft has cross section of 710 m^2, what percentage of radiated energy will be detected
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