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A canoeist wants to paddle to an island which located 38m north, and 100m east, of him. He finds that by pointing his canoe due east, and paddling at a constant speed of 2.0m/s relative to the water, he is able to reach the island in 42 seconds. Find the speed and direction of the current in the water through which the canoeist paddles.
A parallel-plate capacitor has plates of area 0.2 m2separated by a distance of 0.003 m. What is the strength of theelectric field between these plates when this capacitor isconnected to a 5-V battery?
A spool of thread has an average radius of 1- cm. If the spool contains 62.8 m of thread, how many turns of thread are on the spool.
Two blocks of the same mass 0.5 kg head-on collide on a frictionless horizontal surface. The velocities before the collision are v1 = 1.0 m/s, v2 = -3.0 m/s. What is the center-of-mass velocity
What is the intensity of the output from this first polarizer. then first polarizer output encounter a polarizer with a polarizing axis 80 clockwise from the transmitter's axis.
Suppose a flat roof has a surface area of 1.29000×102 m2. What is the force with which the air inside the house pushes the roof upward
An aluminum cylinder weighs 1.00 N. When this same cylinder is completely submerged in alcohol, the volume of the displaced alcohol is 3.85 10-5 m3. What is the specific gravity of the alcohol
We vaporize 5kg of water at 100c. The latent heat of vaporize of water is 2.26x10^6J/kg, find the value of the water's temperature in kelvins
A 2200 kg sport utility vehicle travelling at 86 km/h can be stopped in 0.15 s if it hits a concrete wall. Presume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of car both before and after the crash, and..
A small, 300 g cart is moving at 1.60 m/s on an air track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s.
In a typical golf swing, the club is in contact with the ball for about 0.0010 s. estimate the magnitude of the force exerted by the club on the ball
An electron traveling north enters a region where the electric field is uniform and points west. The electron:
A 1.99 kg solid sphere (radius = 0.104 m) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.795 m high and 4.97 m long. What is its translational kinetic energy
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