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Problem: You are going to go across Mississippi river from East to West bank by rowing your kayak. You know you can row 3 m/s in still water. You discovered that river flows with a water speed of 2 m/h from North to South.
Part A: What direction you should aim at in order to go across the river in the shortest time?
So confused, please explain how you got the answers. Thank you.
A straight, non conducting plastic wire 7.50cm long carries a charge density of 130nC/m distributed uniformly along its length. It is lying on a horizontal tabletop. Discover the magnitude and direction of the electric field this wire produces at a p..
question a 1200 kg cannon fires a 100.0 kg cannonball at 97 ms. what is the recoil velocity of the cannon? assume that
When water freezes, it expands about 8.95%. What would be the pressure increase inside your automobile's engine block if the water in it froze
An electromagnetic rail accelerator is used to launch a research probe vertically from the surface of the Moon. What height does it reach above the surface of the Moon
An external force F, with a magnitude of 16.49 N, acts on a block of mass 1.40 kg parallel to a plane, Calculate the magnitude of the frictional force acting on the body
How numerous forces act on the brick
A polar bear of mass 436 kg stands on an ice floe 58.10 cm thick. What is the minimum area of floe that will just support the bear in saltwater of density of 1030 kg/m3? The specific gravity of ice is 0.88.
A ball is attached to a center post with a string that is 0.587 m long. The ball is moving in a circle on a frictionless table top at a speed of 1.43 m/s with a radius of 0.587 m. What is the centripetal acceleration of the ball?
How much heat flows from 1.0 kg of water at 40.0 degrees C when it is placed in contact with 1.0 kg of 16.0 degrees C water in reaching equilibrium, what is the change in entropy due to this heat transfer
A telephone cord is 4.00m long. The cord has a mass of 0.200kg. A transverse pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.800s. What is the tension in the cord?
When the space between two parallel plates is devoid of matter, the capacitance is .47 micro farrads. The dielectric constant is
An airplane is flying with a velocity of 95 at an angle of 19 above the horizontal. When the plane is a distance 111 m directly above a dog that is standing on level ground, suitcase drops out of luggage compartment.
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