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A wheel rotating about a fixed axis has an angular position givenby θ = 3 - 2t3, where θ is measured in radiansand t in seconds. What is the angular acceleration of the wheelwhen t = 2.0 seconds?
A potter's wheel moves uniformly from rest to an angular speed of 0.18 rev/s in 28.0 s, Find its angular acceleration in radians per second per second
An elevator has mass 540 kg , not including passengers. What is the maximum number of passengers that can ride in the elevator
A 75.0 kg man stands on a bathroom scale in an elevator that accelerates upwards from rest to 30.0 m/s in 2.00 s. Calculate the scale reading compared with his weight
Grace is playing with her dolls and decides to give them a ride on a merry-go-round. If the doll is 13 cm from the center of the spinning turntable platform, how fast (in m/s) is the doll moving
The largest moon of Pluto, Charon, was discovered in 1979. Charon is in a circular orbit of radius 19,600 km around Pluto, What is the total mass of the Pluto-Charon system
A box has a partition with 10% of its volume one side. The larger section of the box contains 500 Ar atoms and the smaller 100He atoms. A small hole is put into the partition. At equilibrium, what is the mean number of atoms of each type?
Consider an object that is hot enough to glow violet blue (a peak frequency of 7.5 x 1014 Hz). What is the temperature of this object
A 46.7 g ball of copper has a net charge of 1.5 µC. What fraction of the copper's electrons have been removed
A man normally consumes 8.4 MJ of food energy per day. He then begins running a distance of 9four times per week. how much more food energy should he consume daily in order to maintain constant weight
A styrofoam cooler (k = 0.030 W/(m·K)) has outside dimensions of 0.270 m by 0.230 m by 0.280 m, and an average thickness of 2.6 cm. About how long would it take for 1.60 kg of ice at 0 °C to melt in the cooler if the outside temperature is 30.0 °C..
A spherical rain drop carries a charge of 2.70E-8 C and has a potential of 5.76E+4 V at the surface, Find the surface area of the drop
A door is made of uniform material of density p and has a height of h, t thick, w wide. When the door is released from rest theta not from the doorframe, it swings closed on it's frictionless hinges time t1.
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