Amass accelerates uniformly when the resultant force on it:
1. increases uniformly with respe...
Physics, 11.01.2020 01:31 mallyosburn
Amass accelerates uniformly when the resultant force on it:
1. increases uniformly with respect to time
2. is constant but not zero
3. is proportional to the displacement from a fixed point
4. i proportional to velocity
Answers: 1
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In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 β from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30β from horizontal. what is the weight of the rider? express your answer with the appropriate units.
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=1.40Γ10β12 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
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At what time would the magnitude of the velocity reach 36.00 km/hr
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You want to move a heavy box with mass 30.0 kg across a carpeted floor. you pull hard on one of the edges of the box at an angle 30β above the horizontal with a force of magnitude 240 n, causing the box to move horizontally. the force of friction between the moving box and the floor has magnitude 41.5 n . what is the box's acceleration just after it begins to move
Answers: 1
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