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While at the county fair, you choose to ride the Ferris wheel. Having eaten too many elephant ears and candy apples, you obtain the motion somewhat unpleasant. To take your mind off your stomach, you wonder about the motion of the ride. You determine the radius of the big wheel to be 15 meter, and you use your watch to find that each loop around takes 27 second.
A) Compute what is your speed?
B) Find what is the magnitude of your acceleration?
C) Find the ratio of your weight at the top of the ride to your weight while standing on the ground?
D) Find the ratio of your weight at the bottom of the ride to your weight while standing on the ground?
A diathermy machine, used in physiotherapy, generates electromagnetic radiation that gives the effect of "deep heat" when absorbed in tissue
A flywheel comprises a uniform circular disk with a mass of 101.0 kg and a radius of 1.1 m. It rotates with an angular velocity of 1183 rev/min. ow many revolutions does the flywheel make while it is stopping in time 117.0 s
The magnetic force on a straight 0.37 meter segment of wire carrying a current of 4.5 Amp is 1.0 N. Find the magnitude of the component of the magnetic field
An astronaut is stuck in space with no fuel for his thrusters. He is 250 m away from his ship and only has a heavy wrench in his possession. How long does it take the astronaut to reach his ship
An electron moves in a region where the magnetic field is uniform, has a magnitude of 60 mT, and points in the positive x direction. Determine the pitch of the resulting helical path
A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5 Newton. Find how much work does the string do on the boy
It is necessary to determine the specific heat of an unknown object. The mass of the object is 170.0 g. Find the specific heat of the object
A 0.10-kg balloon is filled with helium (density = 0.179 kg/m3). If the balloon is a sphere with a radius of 5.4 m, what is the maximum weight it can lift
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. Determine the current in the rods
metal sphere of radius 32 cm has a net charge of 3.0 multiply.gif 10-8 C. What is the electric field at the sphere's surface
a positive point charge q1 2.15 times 10-5 c is fixed at the origin of coordinates and a negative point charge q2
Consider a person that is nearsighted and can clearly focus on objects that are no farther than 2.8 m away from her eyes. Now suppose she borrowed a friend's glasses that make things worse; that is, the person can now focus only on things that are w..
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