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A block of wood weighing 2N slides down a 37^0 inclined plane starting from rest and reaching 2 m/s. What is the kinetic coefficient of friction between the block and slide?
A certain nuclear reactor is capable of producing 1.00 x 109 W of power. During its operation, mass is converted to energy. How much mass is converted in one hour
A cube has sides of length = 0.320 . It is placed with one corner at the origin. The electric field is not uniform but is given by -4.95 2.17 .Find out the electric flux through each of the six cube faces.
q1. a person eats a dessert that contains 260 calories one. the skin temperature of this individual is 36 degree
An inventor designs an ice boat that is propelled by pumping a jet of water directly out the rear in a direction parallel to the ice. What is the velocity of the ice boat when the water is gone
a 2kg mass ona horizontal frictionless surface is attached to the free end of an ideal spring of stiffness k=30N/m. by what distance is the spring compressed as the mass comes to rest again
When people sleep, their metabolic rate is about 2.6 10-4 C/(s • kg). How many Calories does an 83 kg person metabolize though getting a good night's sleep of 9.0 hours.
An individual uses a pulley and rope to raise a 25 kg mass to a height of 2.0 m. If it takes 5.0 seconds to do this, how much power was supplied
A worker pushes a sled with a force of 50 N over a level distance of 7.0 m. what net work is done on the sled
You are using a standard microscope with a 0.10NA 4x objective and switch to a 0.65NA 40x objective. What are the acceptance angles for each
Two railroad cars, each of mass 7300 kg and traveling at 73 km/h, collide head on and come to rest. How much mechanical energy is lost in this collision
A soccer player kicks a rock horizontally off a 34.0-m-high cliff into a pool of water. what was the initial speed given to the rock
Two carts with masses of 5.00 kg and 2.64 kg move toward each other on a frictionless track with speeds of 4.86 m/s and 3.46 m/s correspondingly. The carts stick together after colliding head-on. Find the final speed.
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