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Problem: Consider a hydrogen atom is in its second excited state.
Required:
Question 1: What is the shortest wavelength photon it can emit? in nanometers.
Question 2: What is the longest wavelength photon it can emit? in nanometers.
A baseball (m = 148 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.9 m/s (103 mi/h).
Two 1.8 V. batteries are connected together in series to a bulb whose resistance is 50 ohms. How many electrons leave each battery per minute
A small metal ball is given a negative charge, then brought near (i.e., within a few millimetres) to end A of the rod. What happens to end A of the rod when the ball approaches it closely this first time.
A farsighted woman has a near point of 72.0 cm. What power eyeglasses held 2.00 cm from the eyes will allow her to see objects 25.0 cm away from the eyes
For the following questions, if the answer requires a derivation, clearly show the equations, the calculation and units . Use your own paper and not the space between the problems.
An inductor designed to filter high-frequency noise from power supplied to a personal computer is placed in series with the computer. What minimum inductance should it have to produce a 1.80 k reactance for 15.0 kHz noise
A flat coil of wire of 18 turns and area 4 m^2 is placed in a uniform magnetic field of 0.6 T. Determine the magnetic flux through the coil
A driver in a moving car applies the brakes. The car slows to a final speed of 1.80 m/s over a distance of 40.0 m and a time interval of 8.30 s. The acceleration while braking is approximately constant. What is the car's original speed before braking..
While trying out for the position of pitcher on your high schoolbaseball team, you throw a fastball at 76.4 mi/h toward home plate, which is 18.4 m away. Howfar does the ball drop due to effects of gravity by the time it reaches home plate?
A Styrofoam cup holding 135 g of hot water at 93°C cools to room temperature, 22.0°C. What is the change in entropy of the room
A 1 KW motor accelerates centrifuge in 1 minute from rest to speed 1000 rmp. Find moment of inertia of the centrifuge
a moto-cross rider is airborn after a jump. Each wheel of his bike has a rotational intertia of .760 kg m2, What will his (bike and all) angular speed be after the wheel stops
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