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A rectangular wooden block of weight W floats with exactly one-half of its volume below the waterline. The wooden block is removed from the water bath and placed in an unknown liquid. In this liquid, only one-third of the wooden block is submerged. Mass of the wooden block = 20g What is the density of the unknown liquid?
If a force vector has a magnitude of 2.61 newtons and points 64.5 degrees south of east, then what is its x-component?
A commercial airliner is undergoing its initial ascent while the pilot maintains a cabin environment of T = 23C, r = 0.35, and p = 880 hPa. At the 670 hPa level an exit door ruptures and the cabin pressure rapidly decompresses (glad i'm not in this p..
A roughly spherical astroid whose radius is 40 km rotates once every 2.4 hours. What is it's angular speed in milliradians/sec
A cannonball launched with an initial velocity of 161 m/s at the angle of 45 degrees follows a parabolic path and hits a balloon at the top of its trajectory. Neglect air resistance, how fast is it going when it hits the balloon? What is the accelera..
What's the quickest way to approach this problem? A car is traveling at 80 km/h along the highway. How long does it take for the second car to pass the first
An object weighing325N in air is immersed in water after being tied to a string connected to a balance. The scale now reads265N. Find the density of the object
Force F = (6.0 N) i hat + (-9.0 N) k hat acts on a pebble with position vector r = (0.90 m) j hat + (-0.6 m) k hat, What is the resulting torque acting on the pebble about the origin
A 1408.0 g mass is on a horizontal surface with ?k = 0.39, and is in contact with a massless spring with a force constant of 526.0 N/m which is compressed. Calculate the distance the spring was compressed
The maximum current an ac device draws is 1.80 A when connected to a 120 V outlet. What is the effective current of the device
A long ladder weighing 100 N is rested against a smooth wall. find the magnitude of the normal force of the wall on the ladder
For N2 at 25oC and 1.00 atm calculate the number of collisions per second made by one molecule; the number of collisions per second per cubic centimeter; compare these values to N2 at 25oC and 1.0*10^-6 torr using the values already calculated Show a..
A standing wave on a string is produced when one end is fixed and the other is driven by a 76 Hz oscillator, what is the total length of the string in meters
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