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A 6.0 cm diameter pipe gradually narrows to a 4.0 cm diameter. When water flows through this pipe at a certain rate, the gage pressure in the two sections is 32 kPa and 24 kPa respectively. What is the volume rate of flow?
To determine the location of her center of mass, a physics student lies on a lightweight plank supported by two scales 2.50M apart, Find the students mass
You are on a swing with a chain 5.19 m long. If your maximum displacement from the vertical is 18.1°, how fast will you be moving at the bottom of the arc
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, what was the decibel level on Rodriguez Island
The focal length of the human eye is approximately 1.7 cm. What is the f-number for the human eye in bright light, when the pupil diameter is 3.0mm
An excited electron in Na atom emits radiation at a wavelength 589nm and returns to the ground state. If the mean time for the transition is 20ns, ineherent width in the emission line.
A person is pushing a wheelbarrow along a ramp that makes an angle ? = 25.0° with the horizontal. The wheelbarrow and load have a combined mass of 20.20 kg with the center of mass at the midpoint of the length L. What is the total force the person mu..
A car moving with an initial speed v collides with a second stationary car that is one-third as massive. Find the final speed of the second car
A 990-kg sports car collides into the rear end of a 2100-kg SUV stopped at a red light. The bumpers lock, the brakes are locked, What was the speed sports car at impact
Mary is driving her car at 48 km/h. She approaches an intersection just as the traffic light turns yellow. The yellow light lasts only 3.0 s before turning to red, and she is 30 m away from the near side of the intersection.
Steam at 1200 degrees F has a specific volume of 0.0963 ft^3/lbm. Estimate the pressure of steam at this state using the ideal gas equation of state, evaluate the accuracy of each method
Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Find the direction of the final velocity of the two-object system
A sold cylinder of radius .35 m is released from rest from a height of 1.8 m and rolls down the incline as shown. What is the angular and transitional speed
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