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Alia Peterson
Physics
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 8.00 rev/s when the length of the chain is 0.600 m. When he increases the length to 0.900 m, he is able to rotate the ball only 6.00 rev/s. (a) Which rate of rotation gives the greater speed for the ball?
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Cordell Gilmore
Physics
Which step of the scientific method relies more heavily on newly collected data than on creativity and innovation?
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Madelyn Christensen
Physics
What does 88 = P. K. mean?
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Vance
Physics
In the sentence "The speed of an object can vary," what does the word vary mean?
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Olive Leonard
Physics
Viruses that lie dormant in host cells unit ready to multiply use which viral reproduction cycle
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Conductor
Physics
What is the fundamental source of electromagnetic radiation?
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Cason
Physics
How many constellations are there?
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Bonnie
Physics
Why don't you feel the electric force on you all the time
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Sanai Davies
Physics
During a particular thunderstorm, the electric potential difference between a cloud and the ground is vcloud - vground = 3.50 108 v, with the cloud being at the higher potential. what is the change in an electron's electric potential energy when the electron moves from the ground to the cloud
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Gideon Benton
Physics
If a car travels at 65mph for 2.25 hours, how far does it go in miles?
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Elliot Hawkins
Physics
The square loop shown in the figure moves into a 0.80T magnetic field at a constant speed of 10m/s. The loop has a resistance of 0.10Ω, and it enters the field at t = 0s. Find the induced current in the loop as a function of time. Give your answer as a graph of I versus t from t = 0s to t = 0.020s.
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Mercer
Physics
A shiny new sports car sits in a parking lot of a car dealership. above is a cargo plane, flying horizontally at 46 m/s. at the exact moment the plane is 110 m directly above the car, a heavy crate accidentally falls from its cargo doors. relative to the car, where will the crate hit?
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Gracelyn Silva
Physics
When you go on a hunting trip, you should leave a hunting plan with someone you trust. What information should the plan include?
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Pedro Kaufman
Physics
The specific heat capacity of ethanol is 2440J/kg °C. How many joules of energy will be required to heat 150g ethanol to 35°C if the starting temperature is 22°C?
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Guest
Physics
Difference between static and kinetic friction in physics
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