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A plastic sphere floats in water with 65.0% of its volume submerged. This same sphere floats in glycerin with 51.6% of its volume submerged.
(a) Determine the density of the glycerin.
(b) Determine the density of the sphere.
A student throws a set of keys vertically upward to her sister in a window 4.0 m above. The keys are caught 1.5 s later by the sister’s outstretched h&. Find initial speed were the keys thrown?
Starting from rest, a 4.80-kg block slides 2.00 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436. Determine the work done by the friction force
A metallic sphere 1 of radius 1.00 cm is far away from a metallic spherical shell 2 of radius 2.00 cm. What is the initial voltage on 1
A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 401 N and have a center of gravity that is 1.39 m above the floor. find the location of the center of gravity for the entire body
A 64kg human sprinter can accelerate from rest to 10 m/s in 3.0s. What is the average power output of the greyhound
An air mass has a temperature of 68 F at 970 hPa with a mixing ratio of 5 g/kg. Without any condensation or mixing, the air now has a temperature of 50 F and a pressure of 750 hPa. Find the initial and final values of:
If the pendulum makes a maximum angle of 5.4? with the vertical, what is the length of the pendulum
A step-down transformer is used for recharging the batteries of portable devices. estimate the rms output voltage of the transformer
The average threshold of dark-adapted (scotopic) vision is 4.00 10-11 W/m2 at a central wavelength of 500 nm. how many photons per second enter the eye
A small sphere with a mass of 441 g is moving upward along the vertical +y-axis when it encounters an electric field of 5.00 N/C. what is the charge that it carries
an electrically charged particle accelerates uniformly rom rest to speed v while traveling a distance x. ashow that the
One end of a 5.0 m long light string is attached to the ceiling and a small rock of mass m is attached to the other end of the string. What is the mass m of the rock
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