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A man wishes to pull a crate 15m across a rough floor by exerting a force of 100 N. The coefficient of kinetic friction is 0.25. For the man to do the least work, the angle between the force and the horizontal should be:
Finally a thin rod of mass 7 kg is added between the two particles Since the particles are moving perpendicular to the line separating them, What the angular frequency of rotation of the rod + particles system
An explosion breaks an object initially at rest into two pieces, one of which has 2.2 times the mass of the other. obtain how much kinetic energy did the heavier piece get
Particle charge of 1.6 µC is at the center of a Gaussian cube 72 cm on edge. What is the net electric flux through the surface
the weight of the block on the table is 454 n and that of the hanging block is 205 n. ignore all frictional effects and
the electric field inside a 20.91 cm long copper wire is 0.071 vm. what is the potential difference between the ends of
A bicycle has wheels with a diameter (DIAMETER, not radius) of 0.580 m. Find the linear acceleration of the bicycle
An object with a mass of 48.0 g displaces 605.0 ml of water when it is completely immersed. What is the buoyant force on the mass
two identical objects are placed in a room at 24deg c. object 1 has a temperature of 95deg c and object 2 has a
An 80.6 kilogram climber is scaling the vertical wall of a mountain. Evaluate how much is the rope stretched when it breaks his fall and momentarily brings him to rest
Suppose that workers involved in manufacturing are paid less than all other workers in the economy. What would be the effect on the real income distributionwithin the economy if there were a substantial tariff levied on manufactured goods?
A 5.0 g steel-bullet is fired into a fence post. The initial speed of the bullet is 200 m/s, and when it comes to rest, How much does the bullet's temperature increase
A motorboat is pointed due south, and its motor gives the boat a constant speed of 5.00 m/s through still water. Find the magnitude and direction of the boat's total velocity
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