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A battery having an emf of 9.00 V delivers 105 mA when connected to a 64.0 omegacap.gif load. Decide the internal resistance of the battery.
A silver wire has a cross sectional area A = 2.0 mm2. A total of 9.4 × 1018 electrons pass through the wire in 3.0 s. What is the drift velocity of these electrons
this simulation can be downloaded from granthams website under ph220.simulations its file name is ball on roller cstr
A baseball player rounds second base in an arc with a radius ofcurvature of 4.88 m at a speed of 6.1 m/s If he weighs 845Newton's, what is the centripetal force that must be acting
Ultraviolet light with a wavelength of 10.0 nm shines on a gas of hydrogen atoms in their ground states. Some of the atoms are ionized by the light. What is the kinetic energy of the electrons that are freed in this process?
A 25 g bullet travelling 250 m/s penetrates a 2 kg block of wood and emerges cleanly at 150 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
Use the work-energy theorem to find out how high it will be when its speed has been reduced to half of its initial value. Please provide step-by-step process.
Gas is contained in an 8.2 L vessel at a temperature of 70C and a pressure of 9.2 atm. Find the number of moles of gas in the vessel
A transverse sinusoidal wave on a string has a period T = 15.0 ms and travels in the negative x direction with a speed of 30.0 m/s. Att = 0, a particle on the string at x = 0 has a transverse position of 2.00 cm and is traveling downward with a speed..
A spherical balloon of volume 4.08 103 cm3 contains helium at a pressure of 1.21 105 Pa. How many moles of helium are in the balloon
An aluminum baseball bat has a length of 0.81 m at a temperature of 20°C. When the temperature of the bat is raised, the bat lengthens by 0.00016 m. Determine the final temperature of the bat.
the kinetic energy of a particle is equal to the energy of a photon. the particle moves at 4.2 of the speed of light.
A transparent oil with index of refraction 1.16 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
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