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A particle P with mass 12 kg has positionvector r (r = 6.5 m) and velocity v (v = 5.0 m/s)as shown in the figure. It is acted on by force F (F = 4.0N). All three vectors lie in the xy plane. About theorigin, what is the z-component of the angular momentum of the particle? About the origin, what is the z-component of the torque acting on the particle?
The average speed of a nitrogen molecule in air is about 6.70 ? 102 m/s, and its mass is about 4.68 ? 10-26 kg, What average force does the molecule exert on the wall
A 9.88-kg monkey is hanging by one arm from a branch and swinging on a vertical circle. Find the magnitude of the tension in the monkey's arm
What is the acceleration of two falling sky divers. Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting flywheel up to its top speed of 440 π rad/s. One such flywheel is a solid, uniform cylinder with a ..
An airplane is flying with the velocity of 82.0 at an angle of 22.0 above the horizontal. When the plane is a distance 111 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog..
a cell membrane has a surface area of 1.00 x 10-7 m2 a dielectric constant of 6.01 and a thickness of 7.76 nm. the
3.09 moles of neon, a monatomic gas, starts out at conditions of standard temperature and pressure. The gas is heated at constant volume until its pressure is tripled, then further heated at constant pressure until its volume is doubled. Assume that ..
a charged capacitor is connected to a resistor and a switch as in the figure below. the circuit has a time constant of
two astronauts are 1.5 m apart in their spaceship. one speaks to the other. the conversation is transmitted to earth
The reflected sound is then mixed with the transmitted sound and 90 beats per second are detected. The speed of sound in body tissue is 1480.
q1. a jetliner can fly 5.32 hours on a full load of fuel. without any wind it flies at the speed of 220 ms. the plane
A 10 \rm g bullet traveling at 440m/s strikes a 12kg , 1.2-\rm m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, What is the angular velocity of the door just after impact
Runner A is initially 4.8 km west of a flagpole and is running with a constant velocity of 4.2 km/h due east. Runner B is initially 4.0 km east of the flagpole and is running with a constant velocity of 5.2 km/h due west. What will be the distance of..
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