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Q1. From the shape of total energy vs. time plot, what can you conclude about the conservation of mechanical energy in your mass and spring system?
Q2. A 29.0 m steel wire and a 25.0 m copper wire both with 1.00 mm diameters, are connected end to end and are stretched to a tension of 170 N. How long does it take a transverse wave to travel the entire length of the two wires?
Q3. A long straight wire carries a current of 1.5 A. An electron travels with a velocity of 5.5x104 m/s parallel to the wire, 10 cm from it, and in the similar direction as the current. What force does the magnetic field of the current exert on electron?
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
A house has a floor area of 115 m2 and an outside wall that has an area of 24 m2. The earth's magnetic field here has a horizontal component of 2.50 e 10-5 T that points due north and a vertical component of 4.30 e 10-5 T that points straight down..
After the collision, the 2.00-kg object has a velocity 5.00 m/s to the west. How much kinetic energy was lost throughout the collision.
A 5.0 kg sled initially at rest on a level snow-covered road, Find the kinetic energy of the sled after it had been pulled for a distance of 6.0 m
A plastic sheet of thickness 250 nm appears to be green in the figure below (?green=500nm), What is the plastic's index of refraction
A cannon fires a cannonball from the top of a wall at a speed of 23.07 m/s and an angle of 19.56 degrees from the horizontal. What is the horizontal distance from the wall where the fired cannonball hits the ground
A disk of radius 1.00 m is rotating with 5.39 rad/s and 5.39 rad/s2. What is the magnitude of the linear acceleration of a point on the outer edge of disk? (Give the answer in three significant figures and SI units)
A cube of ice is taken from the freezer at -9.5?Cand placed in a 95-g aluminum calorimeter filled with 310g of water at room temperature of20.0 ?C. What was the mass of the ice cube
When two parallel slits are illuminated with monochromatic light of wavelength 632.8 nm, What is the distance between the parallel slits
(a) What is the velocity of the boat at t = 18.89 s? (b) Find the total displacement of the boat.
What is the electric potential energy of the system.
An infinite line of positive charge lies along the y axis, with charge density ? = 1.20 ?C/m. find the magnitude of the net force exerted on the dipole
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