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A canoe has a velocity of 0.520 m/s southeast relative to the earth. The canoe is on a river that is flowing at 0.470 m/s east relative to the earth.Find the magnitude of the velocity v? c/r of the canoe relative to the river.
a light plane attains an airspeed of 550 kmh. the pilot sets out for a destination 760 km due north but discovers that
A ball is released from rest and rolls down an incline plane, requiring 4 sec to cover a distance of 100cm down the plane, How far did it travel vertically while rolling down the olane
A grinding wheel of radius 0.280 m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. Find the magnitude of the friction force
If the acceleration of the statue, upon striking the pillow, is constant, what is the value of the acceleration if the pillow compressed by 3.9cm as the statue comes to rest
To determine the center of mass of her body, a student lies on aplank of mass m=10 kg. The plank is supported by two scales at itsends. The distance between the scales is 2.5 meters. The left scalereads 339 N and the right reads 171 N.
q1. a soccer player kicks a ball giving it an initial velocity of 17.2 ms in the horizontal direction and 12.0 ms in
Certain rifles can fire a bullet with a speed of 950 m/s just as it leaves the muzzle (this speed is called the muzzle velocity). What is the acceleration of the bullet within the rifle
Two Automobiles traveling at right angles to each other collide and stick together. Car A has a mass of 1200 kg and had a speed of 25 m/s before the collision, What was the speed of car B before the collision
By what mechanism do quantum effects become observable in normal life at the macroscopic level? For instance, when two molecules "collide" is the momentum a probabilistic event wherein the end state is not unique? Another example, through a chemical ..
you are designing an electro microscope capable of resolving two features separated by 1 nm. the f-number fd is 100.
An object having a net charge of 24μC is placed in a uniform electric field of 610 N/C directed vertically. What is the mass of the object if it floats?
A spring is used to propel a 0.400-kg hockey puck across level (frictionless) ice that becomes a rough (not frictionless) ramp inclined at 27°. If the puck reaches a maximum vertical height of 14 cm on the ramp, what distance does it travel along t..
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