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A 56-kg student runs at 4.2m/s , grabs a hanging 10.0-m-long rope, and swings out over a lake. He releases the rope when his velocity is zero.
Part A What is the angle when he releases the rope?
Part B What is the tension in the rope just before he releases it?
Part C What is the maximum tension in the rope during the swing?
How much work must be done to bring three electrons. calculate the mass of an ice cube.
A convex lense of focal length 18 cm is used as a magnifying glass. at what distance from a tiny insect must you hold this lense to get a magnification of 3.
You have a concave spherical mirror with a 10.3-cm radius of curvature. You place an object on the mirror\'s axis, How far is the object\'s image from the mirror
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. Determine the current in the rods
Assuming that the disks form a circular parallel plate capacitor and the electron are initially at rest when they pass through the first disk. A) determine the acceleration that the electrons undergo and B) the speed of the electrons as they pass ..
A 47 g block of copper at -10 C is added to 150 g of water in a 71g aluminum cup. The cup and the water have an initial temperature of 4.2 C. Find the equilibrium temperature of the cup and its contents. What mass of ice, if any, is present when t..
A proton moves perpendicular to a uniform magnetic field Barrowbold at a speed of 1.20 107 m/s, Determine the magnitude and direction of the field
A 5.00 X 10-2 kg mass with a charge of +0.75 mC is hung by a thin insulated thread. A charge of -0.9 mC is held 0.15 meters directly to right so that the thread makes an angle q with the vertical. What is the angle q and the tension in the string.
How the system comes to thermal equilibrium
The total kinetic energy in one mole of nitrogen is 4,000 J. what is the root mean-square velocity of an individual particle in the ideal gas
While rearranging a dorm room, a student does 276 J of work in moving a desk 1.7 m. What was the magnitude of applied horizontal force.
An infinite line of charge has linear charge density 5.50x 10-12 C/m. A proton (mass 1.67x 10-27 kg, charge +1.60 10-19 C) is 18.0 cm from line and moving directly toward the line at 1.20 x10^3 m/s. How close does the proton get to the line of char..
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