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Quesion 1: The density of gold is 1.93×104kg/m3 . A mass of 192g of gold is shaped into a cube. What is the length of each edge? = ? cm
Question 2: A flat slab of styrofoam, with a density of 32 kg/m3, floats on a lake. What minimum volume must the slab have so that a 34kg boy can sit on the slab without it sinking? Express your answer to two significant figures and include the appropriate units.
In what time interval does it reach this velocity. How high would the insect jump if air resistance were negligible.
The angular momentum of a flywheel having a rotational inertia of 0.250 kg·m2 about its central axis decreases from 2.80 to 1.800 kg·m2/s in 1.00 s. What is the average power of the flywheel
a car traveling at 95 km/hr. is 210 m behind a truck traveling at 75 km/hr. How long will it take the car to catch the truck
A small object with a mass of 333 mg carries a charge of 30.0 nC and is suspended by a thread between the vertical plates of the parallel-plate capacitor. The plates are separated by 2cm.
What is the potential difference in volts between the plates.
A certain alarm clock ticks four times each second, with each tick representing half a period, What is the torsion constant of the coil spring and What is the moment of inertia of the balance wheel about its shaft
A microscope uses an eyepiece with a focal length of 1.65 cm . Using a normal eye with a final image at infinity, What is the magnification of the microscope
Water is moving at a speed of 7.55 m/s through a fire hose with an internal diameter of 5.99 cm. What is the diameter of the nozzle
A particular organ pipe can resonate at 213 Hz, 355 Hz, and 497 Hz, but not at any other frequencies in between. What is the fundamental frequency of pipe.
Assume that you need to get a heavy couch into the bed of a pickup truck. You know the bed of the truck is at the height of 1.00 and you require a ramp that makes an angle of 40 with the ground if you are to be able to push the couch.
A transparent oil with index of refraction 1.22 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
If a vehicle is traveling at velocity v and takes a distance d to stop, then how fast is a vehicle traveling if it takes a distance of 3d to stop. suppose mass and acceleration are equal.
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