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Consider an element having excited states at 3.6 eV and 4.6 eV used as a gas in the Frank-Hertz experiment. Assume that the work functions cancel out. List all the possible peaks that MIGHT be observed with electron scattering up to an accelerating voltage of 18V.
Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Determine the period of the orbit
An electron has a speed of 0.750c. Find the speed of a proton that has the same kinetic energy as the electron
q1. an open-open organ pipe is 67.9 cm long. an open-closed pipe has an essential frequency equal to the third harmonic
An elevator moves downward in a tall building at a constant speed of 4.35 m/s. Estimate the highest floor from which the bolt can fall
You make a plot of displacement (Y ? Y0) in meters versus spring force (Fs) in Newtons for the data you have collected in lab and use LoggerPro to fit a line to your data. Calculate the spring constant and its uncertainty
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
An elevator cable breaks when a 975 kg elevator is 24.5 m above the top of a huge spring (k = 8.00 x 10^4 N/m) at the bottom of the shaft. Calculate the speed of the elevator just before striking the spring
Find out the electric field at radius
A sailboat leaves a harbor and sails 1.80 km in the direction 65 degrees sounth of east, the boath then sails 1.1 km in the direction 15 degrees north of east. the trip takes 15 minutes. what is the magnitude and direction.
A father pulls his son, whose mass is 22.9 kg and who is sitting on a swing with ropes of length 3.21 m, What is the speed of the son at the bottom of the swinging motion
A 50.5 g ice cube, initially at 0°C, is dropped into a Styrofoam cup containing 360 g of water, initially at 19.2°C. What is the final temperature of the water
A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. If the woman balances on one heel, what pressure does she exert on the floor
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