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A Ferris wheel with radius 38m is driven by a motor that exerts a force on the wheel 1m from the center. Model the Ferris wheel as a ring with mass 1.9 x 106kg. What force must the motor exert to cause the wheel to start from rest and increase its angular speed to 0.2rpm in 2minutes? At this angular speed, what is the centripetal force acting on a seat of mass 50kg at the edge of the wheel? If this force results from the sum of the weight and a normal force acting on the seat, what is the normal force at the bottom of the wheel's trajectory? At the top?
If I end up with a velocity of 1 m/s going west, am I heaver or lighter than you? What is your mass, and what is your final velocity?
You walk 100 m to the north, and then you turn 70degrees to your right and then walk another 50 m. What is the magnitude of your total displacement
A conducting sphere that carries a total charge of -9.1 µC is placed at the center of a conducting spherical shell that carries a total charge of +1.7 µC. The conductors are in electrostatic equilibrium. Determine the charge on the outer surface o..
A point charge of +5.34 ?C is located at the center of a sphere with a radius of 12.6 cm. Determine the electric flux through the surface of the sphere.
A 20 kg loudspeaker is suspended 2.0m below the ceiling by two cables that are 30 degrees from vertical. what is the tension in the cables
To stretch a relaxed biceps muscle 2.30cm requires a force of 25 N. Find the Young's modulus for muscle tissue assume it to be a uniform cylinder of length 0.24 m and cross-sectional area 51 cm2.
The Earth and Moon are separated by about 400 ? 106 m. Suppose Mars is 1.6 1011 m from Earth and forms a right triangle with Earth and the Moon. determine the angular separation of Earth
The Dyson sphere is an hypothetical spherical structure centered around a star. Inspired by a science fiction story, What is the net gravitational force Fin on a unit mass located on the inner surface of the Dyson sphere described in Part A
A thin, light wire is wrapped around the rim of a wheel, If the suspended object moves downward a distance of 3.40m in 1.86s, what is the mass of the wheel
A man slides along a long water slide and then being launched into the air to land in a water pool. Find the magnitude of the velocity at launch
A rifle bullet is fired horizontally off the top of an ocean-based drill site. If the air resistance is negligible and the vertical distance to the water is 35 m, what additional information is needed to determine the time required for the bullet ..
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, and its diameter 1.28 cm. Find the volume of the cylinder. Calculate the probable percent error in the length. Calculate the probable percent error..
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