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A person's hand holds a liter of milk while his arm is bent at the elbow in a 90o angle. Estimate the torque caused by the milk on his arm about the elbow joint. Assume the distance between the center of his hand and his elbow joint is 0.33 m.
1 you chose a an arbitary point to begin measuring the postion of the falling object. how fast was it going at the
Ball A has a mass of 0.90 kg and moves with an initial speed of 10.60 m/s. It collides with stationary balls B and C, whose centers are on a line vertical to the initial velocity of ball A and that are initially in contact with one-another.
For a rocket propulsion velocity of exhaust gases relative to rocket is 2km/s.If mass of rocket system is 1000kg, then what is the rate of fuel consumption for a rocket to rise up with acceleration 4.9m/s^2?
In a classical model of the hydrogen atom, the electron orbits a stationary proton in a circular orbit
The H2O molecule is an asymmetrical rotor with rotational constants 27.833cm^-1, 0.3951 cm^-1 and 0.3505 cm^-1. Calculate the rotational partition function.
a circular-motion addict of mass 85 kg rides a ferris wheel around in a vertical circle of radius 10 m at a constant
The tension on a wire is 2740 N. The wire is 2.6 m long and the fundamental frequency is 370 Hz. What is the mass of the wire
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
For a safe re-entry into the Earth's atmosphere, the pilots of a space capsule must reduce their speed from 2.6 × 104 m/s to 1.1 × 104 m/s. For how long must they fire their engine
an electrically neutral thin square metal slab measuring 5.00 cm on a side is placed in a uniform external field that
the total electric flux from a cubical box 3.00cm on a side is 1.40times103ncdot m2c. what charge is enclosed by the
An airplane flies due west at a velocity of 645 kilometres per hour (km/h). The wind blows from the north at a velocity of 125 kilometres per hour (km/h). Find the plane resultant velocity?
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