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An ice sheet with area 10:0 m x 10:0 m and uniform thickness of 1.20 m floats in the Arctic Ocean. Assume that the density of ice is 917 kg/m3 and the density of seawater is 1030 kg/m3.
(a) Find the buoyant force acting on the ice sheet.
(b) By how much does the ice sheet stick above the surface of the water if a polar bear with mass 520 kg climbs on top of it.
A solid, uniform disk of radius 0.250 m and mass 62.3 kg rolls down a ramp of length 4.70 m that makes an angle of 18° with the horizontal. Find the angular speed of the disk at the bottom of the ramp
A coil with an inductance of 14.5 H and a resistance of R = 4.0 ohms is suddenly connected to a resistanceless battery with E = 184.2 V. What is the equilibrium current
Protons in cosmic rays have been observed with kinetic energies as large 2.70 × 108 eV. How fast are these protons moving
according to the mortgage bankers association 10.73 of prime fixed-rate mortgages were in foreclosure or delinquent in
A simple harmonic oscillator consists of a block of mass 4.10 kg attached to a spring of spring constant 350 N/m. What is the amplitude of the oscillations
moves through its horizontal position at (B) and up to (C) where it stops with 2 = 109.0o, and then falls back down. Friction at the pivot is negligible. Compute the speed of the CM at (B).
Antennas for radio transmission and reception are particularly effective if they're about a half-wavelength long. What's the appropriate length for an FM antenna
In an experiment, 200 g of aluminum (with a specific heat of 900 J/kg·K) at 100°C is mixed with 48.0 g of water (4186 J/kg·K) at 20°C, What is the entropy change of the aluminum
The security alarm on a parked car goes off and produces a frequency of 1190 Hz. At what speed are you driving
A 2720 - ? resistor and a 1.8 - ?F capacitor are connected in series across a generator (60.0 Hz, 120 V). Determine the power delivered to the circuit
a tennis ball is thrown from ground level with velocity vo directed 30 degree above the horizontal. if it takes the
A bullet is fired horizontally with an initial velocity of 865 m/s at a target located 150 m from the rifle. How much time is required for the bullet to reach the target
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