Physics, 09.10.2019 22:30 amandabarriksofficia
Apool ball rolls up an inclined plane, slows to a stop, and then rolls back down. during this process the magnitude of the acceleration of the pool ball the velocity the direction of the acceleration is always a. never zero
b. not constant
c. 9.8 m/s/s
d. down the ramp
e. up the ramp
Answers: 3
Physics, 22.06.2019 08:50
You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a ร b = 98k. what is the y-component of vector b?
Answers: 1
Physics, 22.06.2019 23:50
An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40ร10โ12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?
Answers: 2
Physics, 23.06.2019 01:30
Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class
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Physics, 23.06.2019 11:00
As more bulbs are added to a series circuit what happens to the resistance of the circuit
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Apool ball rolls up an inclined plane, slows to a stop, and then rolls back down. during this proces...
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