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A rotating wheel requires 5.00 s to rotate 26.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 96.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel?
rad/s2
The semiconducting compound ZnS is widely used for ultraviolet light emitting diodes (LED's). find the frequency of light emitted by a ZnS LED
A 2.54 kg particle moving along the x-axis experiences the force shown, where Fmax=6.85 N, Fmin=-6.85 N, d1=1.27 m, d2=2.54 m, d3=3.81 m, and d4=5.08 m. At x=0.00 m the particle's velocity is 3.93 m/s. What is its velocity at x=2.54 m?
A solenoid of radius 4.0 cm has 300 turns and a lenght of 25 cm. What is the inductance of the Coil?
At time t= 0, a 2150-kg spacecraft in outer space fires an engine that exerts anincreasing force on it in the +x-direction. What impulse does the engine exert on the spacecraft during the 1.5 s interval starting 2.0 s afte..
A rod supports a 2.35 kg lamp. a) What is the tension in the rod? b) Estimate the components of the force that the bracket exerts on the rod.
A drone, flying 300m above ground, observes a man walking on a road in a cold night (0°C). how many photons/sec does it receive from the man and from a similar surface of road
A 72kg man climbs a 1192 m high mountain in 1.43 hour and uses 7.6kcal/min. What is the power ouTput in useful work
An elevator cabin has a mass of 350.5 kg, and the combined mass of the people inside the cabin is 183.7 kg. obtain the tension in the cable
A 4.0 uF capacitor is connected in series with a 2.0 kilaOhm resistor across a 20-V DC source and an open switch. If the switch is closed at t=0 s, what is the charge on the capacitor at t= 9 ms
How much heat flows from 1.00 kg of water at 42.0°C when it is placed in contact with 1.00 kg of 16°C water in reaching equilibrium
The electricity received at an electric substation has a potential difference of 2.80 10^5V. If the requires output is 440V, what must be the ratio of the turns of the step-down transformation.
How long will it take you to cover the 99 m length of the walkway if, once you get on the walkway, you immediately turn around and start walking in the opposite direction with a speed of 1.5 m/s relative to the walkway.
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