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A thin, light wire is wrapped around the rim of a wheel, as shown in the following figure. The wheel rotates without friction about a stationary horizontal axis that passes through the center of the wheel. The wheel is a uniform disk with radius 0.270 m. An object of mass 4.35 kg is suspended from the free end of the wire. The system is released from rest and the suspended object descends with constant acceleration.
If the suspended object moves downward a distance of 3.15 m in 2.07 sec, what is the mass of the wheel?
Big yellow fishing swimming at 2.0m/s swallows little green fish at rest. Big yellow fish is 3 times as massive as little green fish. What fraction of big yellow fish's initial kinetic energy was lost
Cloud droplets cannot grow into rain droplets by condensation alone. How would you have to alter the basic assumption of this example to make cloud droplets grow to raindrops by condensation only?
A stretched spring stores 2.2 of energy. How much energy will be stored if the spring is stretched three times as far
a particle moving along the x axis in simple harmonic motion starts from its equilibrium position the origin at t 0
A student throws a set of keys 4.4m up to friend in window. the friend catches the keys 1.7s later. what is the intial velocity
A beaker with a capacity of exactly 100mL contains 99.5mL of ethanol at 19degrees C. If it's temperature rises at what temperature will it overflow? (Ignore expansion of the beaker). The answer is not 23.6 degrees C so I am not sure how to figure it ..
A beam of light with red and blue components of wavelengths 670 nm and 425 nm, respectively, what is the index of refraction of the blue light
it is important for nuclear engineers to know the thermal properties of neutrons in a nuclear reactor. assuming a gas
A 779-kg car stopped at an intersection is rear-ended by a 1820-kg truck moving with a speed of 15.0 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find out the final speed of both vehicles ..
a. how much energy is stored in a 9.60 mh inductor carrying a 1.35 a current?b. how much current would the inductor
What is the target's speed just after the bullet emerges.What is the velocity v of the smaller fish before lunch.
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin(2?t), Find the angular frequency of the driven system
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