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A 0.20-kg particle moves along the x axis under the influence of a stationary object. The potential energy in SI unit is given by U(x) = 80.0x + 20.0x^2 where x is the position of the particle.
a) If the particle has a speed of 5.0 m/s when it is at x = 2.0 m, what was its speed at the origin.
b) If the total mechanical energy is 60.0 J, find the turning points of the motion.
c) When the particle is at x = 1.0m find the magnitude and direction of its acceleration.
A rocket fires two engines simultaneously. One produces a thrust of 615 directly forward while the other gives a thrust of 474 at an angle 39.6 above the forward direction.
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A parallel-plate air-filled capacitor having area 41.0 cm2 and plate spacing 2.70 mm is charged to a potential difference of 360. V. calculate the energy density between the plates
Where does the energy of an objects inertia come from. You can throw a ball, And how is the ball interacting with the space around it to be moving in the first place?
A 2.10kg snowball is fired from a cliff 8.55 m high with an initial velocity of 11.90 m/s, directed 47.0° above the horizontal. (a) Using energy techniques, find speed of the snowball as it reaches the ground below the cliff. What is that speed (b) i..
Calculate the moment of inertia of a skater given the following information. THe 65 kg skater is approximated as a cylinder that has a .110 m radius
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A raft is made of 12 logs lashed together. Each is 28 cm in diameter and has a length of 6 m. How many people can the raft hold before they start getting their feet wet
How much work would be required to move a 0.50 microCoulomb test charge from a point midway between them to a point 12 cm closer to ether of the charges?
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