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An airplane propeller is rotating at 1250rpm
A) Compute the propeller's angular velocity in rad/s.
B) How many seconds does it take for the propeller to turn through 36.0 degrees?
C) If the propeller were turning at 23.0 rad/s , at how many rpm would it be turning?
D) When the propeller were turning at 23.0 rad/s , what is the period (in seconds) of this propeller?
In one cycle, a freezer uses 780J of electrical energy in order to remove 1730J of heat from its freezer compartment at 10.0 oF. What is the coefficient of performance of this freezer
On a cool morning, when the temperature is 14.0 ^circC, you measure pressure in your car tires to be 20.0 psi. After driving 40.0 mi on the freeway, the temperature of your tires is 50.0 ^circC.
A Carnot engine has an efficiency of 0.861, and the temperature of its cold reservoir is 381 K. Determine the temperature of its hot reservoir
Force F = (-5.0 N) i hat + (5.0 N) j hat acts on a particle with position vector r = (-3.0 m) j hat + (5.0 m) k hat. What is the angle between the directions of force and torque
As an eager scientist on a hot summer day you wish to determine how much ice to buy to add to your cooler which is filled with 3.0x10^1 cans of soda which are warm at 86.5F. how much ice needs to be added to your cooler
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.315 m and mass 4.89 kg, what should the radius of the disk be
At the beginning of a dive, a diver is in the layout position with an angular velocity of 100°/s and a moment of inertia of 15 kg·m2. What is the diver's moment of inertia in the tuck position
A box slides down a 25° ramp with an acceleration of 1.070m/s2. Resolve the coefficient of kinetic friction between box and ramp.
A Spacecraft with a total mass of 50,000kg is flying with a speed of 90m/s with respect to a distant planet. What is the speed of the remaining spacecraft with respect to the planet after the explosion
A 9.30 kg monkey is hanging by one arm from a branch and swinging on a vertical circle. Calculate the magnitude of the centripetal force acting on the monkey
A house has a floor area of 115 m2 and an outside wall that has an area of 24 m2. The earth's magnetic field here has a horizontal component of 2.50 e 10-5 T that points due north and a vertical component of 4.30 e 10-5 T that points straight down..
The speed of the block at the bottom of the track is vA = 13.1 m/s, and block experiences an average frictional force of 7.00 N while sliding up the track.
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