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Two people start at the same place and walk around a circular lakein opposite directions. One walks with an angular speed of2.00 10-3 rad/s, while the other has an angularspeed of 3.20 10-3 rad/s. How long will it be beforethey meet?
the shinkansen, the japanese train, runs at high speed. riding on the shinkansen, you notice that the frequency of a crossing signal changes markedly as you pass the crossing. what is the speed of the train
Two carts have a compressed spring between them and are initially at rest. One of the carts has total mass, including its contents, of 7.0 kg, and the other has total mass of 5.0 kg. If the 5.0 kg cart is moving at 3.0 m/s after the spring is allowed..
Four charges of equal magnitude Q = 65 nC are placed on the corners of a rectangle of sides D1 = 25 cm and D2 = 10 cm. calculate the numeric value for the vertical force
Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.20 kg wrench from 5.00 m above the ground and measure that it hits the ground 0.811 s later. You also do enough surveying to determine that the c..
A strip of paper is pulled along at 20m/s at a right angle to the plane of a .49m long pendulum. The pendulum has a small ink jet device to the bob so that it marks the position of the pendulum on the paper. The bob is held 8.0cm to one side and rele..
A isolated conducting sphere R=3.0 cm has a charge placed on itssurface. The surface charge density is uniform and has the value-7.2x10^(-6) C/m^2.(1) Find the total charge on the sphere, (2) themagnitude and direction of the electric field at r=R.(3..
Water enters a horizontal pipe with a rectangular cross section at a speed of 1 m/s. The width of the pipe remains constant but the height decreases. Eighteen meters from the entrance, the height is half of what it is at the entrance.
As we've seen, astronauts measure their mass by measuring the period of oscillation when sitting in a chair connected to a spring. What is the mass of an astronaut who oscillates with a period of 2.16 when sitting in the chair
how many electrons must be removed from each of two 4.3-kg copper spheres to make the electric force of repulsion
A carpenter on a space station has constructed a 30.0° ramp. A rocket moves past the space station with a relative speed of 0.720c in a direction parallel to side x. What does a person aboard the rocket measure for the angle of the ramp?
A person weighing 500 N climbs a ladder leaning against awall. The ladder weighs 100 N and is 2.00 M long, How high does the person get before this begins to happen
a 8150 kg sailboat is moving through the waters of the atlantic. initially the boat is traveling at 30 mph 17 degrees
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