On a low-friction track, a 0.36-kg cart initially moving to the right at 2.85 m/s collides elastically with a 0.12-kg cart initially moving to the left at 0.13 m/s. the 0.12-kg cart bounces off the 0.36-kg cart and then compresses a spring attached to the right end of the track. a) at the instant of maximum compression of the spring, how much elastic potential energy is stored in the spring? express your answer with the appropriate units. b) if the spring then returns all of this energy to the cart, and the two carts again collide, what is the final velocity of 0.36-kg cart? express your answer with the appropriate units. enter positive value if the speed is directed to the right and negative value if the speed is directed to the left. c) if the spring then returns all of this energy to the cart, and the two carts again collide, what is the final velocity of 0.12-kg cart? express your answer with the appropriate units. enter positive value if the speed is directed to the right and negative value if the speed is directed to the left.
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Physics, 22.06.2019 01:10, atirahmalik2425
If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .
Answers: 2
Physics, 22.06.2019 15:30, Mhayslett12
To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin. answer in one word. part bfind e(r), the magnitude of the electric field at distance r from the point charge q. express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q. express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r
Answers: 2
On a low-friction track, a 0.36-kg cart initially moving to the right at 2.85 m/s collides elastical...
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