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An electron in a hydrogen atom orbits with radius of 9a0.
A: What's the change in the atom's total energy if the radius increases to 25a0?
B: Does this process correspond to the emission or absorption of a photon?
C: What's the photon's wavelength?
While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction between the box and the floor is 0.41. The pushing force is directed downward, at an angle theta below the horizontal.
A proton is located at y=0.06m and has a velocity of 5x10^6 m/s in the +x direction while an electron is located at x=0.08m, What is the magnetic field generated by these two charges at the origin
the earth rotates once around itself every day so in 24 hours. however the circle you complete depends on where on the
A flexible wire loop has a radius of r = 18.6 cm and it is inside a uniform magnetic field of B = 0.208 T. The loop is grasped at points P and Q and stretched until its area is zero. It takes 211 ms to close the loop. What is the magnitude of the ..
a car traveling on a downhill grade has a grade resistance of -145lb. what is the weight of the car? which has the
A satellite, moving in an elliptical orbit, is 357 km above Earth's surface at its farthestpoint and 184 km above at itsclosest point. Calculate the semimajor axis of the orbit. Calculate the eccentricity of the orbit.
A line of charge starts at x = +x0 and extends to positive infinity. The linear charge density is ? = ?0x0/x, Determine the electric field at the origin
During a process, 21.6 MJ of heat is added to a closed system. If the internal energy is increased by 59.6 MJ: How much work in Btu was done, Was this work done on or by the system
An athlete starts at point A and runs at a constant speed of 7.00 m/s around a round track 250 m in diameter? Find the x component of this runner's average velocity between points A and B.
In a certain time, light travels 4.88 km in a vacuum. During the same time, light travels only 3.19 km in a liquid. What is the refractive index of the liquid
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 9.00×1011 mm of Hg. What is the number density
An emf of 10 V is connected to a series RC circuit consisting of a resistor of 1.3 x 106 Ω and a capacitor of2.9 µF. Find the time required forthe charge on the capacitor to reach 89% of its final value.
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