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Two resistors are connected in series to a battery with an emf of 12 V. The voltage across the first resistor is 2.9V and the current through the second resistor is 0.13A.
Part A: Find the resistance of the first resistor.
Part B: Find the resistance of the second resistor.
A hydrogen atom that is initially at rest absorbs a photon with an energy of 21 eV. What is the momentum of the atom
q1. 0.7 kg block of ice is sliding by you on a very slippery floor at 3 ms. as it goes by you give it a kick
A superhero flies 287 meters from the top of a tall building at an angle of 17 degrees below the horizontal. What is the vertical component of the superhero's displacement? Answer in units of meters. The horizontal is 274.459 meters and the vertical ..
Helium-Neon laser: "Lambda"= 632.8nm. We can observe the first order maximum at "theta"= 25 degrees. What is the second order maximum angle
A Histogram shows that the mean of rain in the area has increased over the last 5 years. What is the probability that the mean would be higher this year than in the previous 5.
A brick of mass 1.21 kg is attached to a thin (massless) cable and whirled around in a circle in a vertical plane. What is the maximum speed the brick can have at the bottom of the circle before the cable will break
The bullet strikes a block of wood and penetrates to a depth of 15 cm. What resistive force (assumed to be constant) does the wood exert on the bullet? Explain how long does it take the bullet to come to rest?
The light shining on a diffraction grating has a wavelength of 490 nm (in vacuum). How many lines per centimeter does the grating have
The internal energy of a gas is 553.J. The gas is compressed adiabatically, and its volume decreases by 105.cm3. what is the internal energy of the gas after the adiabatic compression
A person typically contains 5.0 L of blood of density 1.05 g/ml When at rest, it normally takes 1.0 mint to pump all this blood through the body. What average power does the heart expend in the process
Two objects with masses of 2.90 kg and 8.00 kg are connected by a light string that passes over a frictionless pulley, Determine the acceleration of each object
A vertical spring with a spring constant of 480 N/m is mounted on the floor. From directly above the spring, that is unstrained, a 0.150 kg block is dropped from rest.
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