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A person with a mass of 81 kg and a volume of 0.089 m^3 floats quietly in water.
(a) What is the volume of the person that is above water?
(b) If an upward force F is applied to the person, the volume above water increases by 0.0018 m^3. Find the force F.
A diverging thin lens and a concave mirror have focal lengths of equal magnitude. Determine the properties of the final image of the system affter two refractions
An artificial satellite circles Earth in a circular orbit at a location where the acceleration due to gravity is 9.00 m/s2. Determine the orbital period of the satellite
A uniform disk with a mass of 875 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
A compact disk player has just been turned off. A disk decelerates uniformly from an initial angular velocity of 8.90 rev/s. The disk rotates through 4.50 revolutions before coming to rest. What is the tangential acceleration of a point on the disk 2..
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.97 m above the bottom of the chute and with an initial speed of 1.89 m/s. How far from the bottom of the chute does the toy zebra come to rest
If the power output of a 630 kHz radio station is 50.0 kW, how many photons per second are produced
A sealed box is placed inside a sealed container. A pressure gage attached to the box reads 60.0 kPa, what is the absolute pressure inside the box
Two waves with the same frequency have amplitudes 1 cm and 3 cm. What is the amplitude of the in phase superposition
Two particles of masses m and 3m are moving toward each other along the x-axis with the same speed v. Determine the final speed of the heavier object
A young man owns a canister vacuum cleaner marked "532 W [at] 120 V" and a Volkswagen Beetle, which he wishes to clean. what is the actual power delivered to the cleaner
An airplane flies at a constant speed (v) in a horizontal circle of radius (R). calculate the magnitude in Newton's of the centripetal force on the plane
Lasers have been developed that can generate pulses of light that are only 10 fs (femtoseconds) long. Compute how many photons are there in each pulse
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