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A particle of ionizing radiation creates 4900 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy was deposited, if 21.0 eV is required to create each ion pair?
__________eV
An oil drop (density = 0.80 grams/cm3) has a diameter of 2.30 ?m. (This is about the size of a bacterium.) (A) Find the mass of the drop, What is the value of the electric field
A point charge with charge q1 = 2.80?C is held stationary at the origin, How much work W is done by the electrostatic force on the moving point charge
A football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick.
hysicists model a magnetic field by assigning to every point in space a vector that represents the strength and direction of the field at that point. Two magnetic fields that exist in the same region of space may be added as vectors at each point to ..
The density of ice is 917 kg/m3 and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m3. What is weight of the heaviest bear that the ice can support without sinking complete..
How will their speeds to relate to each other when they land? Ignore air resistance. Clarify with graph. Draw a graph and explain why it happens.
Pat (mass 53 kg) and Chris (mass 72 kg) sit in a 26-kg kayak at rest on frictionless water. What's the kayak's speed after Chris catches the pack
A positron is a particle of "antimatter"; it has the same mass as an electron (9e-31 kg), but its charge is positive instead of negative. At research facilities such as Cornell Electron Positron Storage Ring at Cornell University in New York, high..
Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
An opera singer in a convertible sings a note at 600 whereas cruising down the highway at 81. What is the frequency heard by a person standing beside the road in front of car? What is the frequency heard by the person standing beside the road behi..
A double-slit experiment using light of wavelength 580.nm produces an interference pattern on a screen. The slit separation is 1.39?10?2mm. find the distance between the slits and the screen
What must your average speed over the next 10 miles be to have your average speed for the total 20 miles be 13m/h? c)Given this average speed for the first 10 miles, can you possibly attain an average speed of 14for the total 20-mile ride?
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