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A 100kg runner is heading north at a speed of 2.0 m/s and a50kg runner is headed south at 3.0m/s.
A) Find the total momentum vector of the system comprised of the runners.B) Give both magnitude and direction.
A parallel beam of unpolarized light in air is incident at an angle of 57.5 degrees (with respect to the normal) on a plane glass surface, What is the angle of refraction of the transmitted beam
A hydrulic jack in a mechanic's shop supports a car of mass M= 2.1 x 10^3 kg. What force must the pump exert on the fluid at the input to support the weight of the car
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.0 s, it rotates 45 rad. What was the angular acceleration during this time
A particle travels around a circle of radius 2.0 m making one complete revolution every 2.0 m/s. What are the particle's tangential speed and its angular speed
a 1.0m--tall vertical tube is filled with 20c water. a tuning fork vibrating at 575hz is held just over the top of the
question calculate the velocity in ms-1 of photoelectrons ejected from a sodium metal surface which has a work function
A person going for a morning jog on the deck of a cruise ship is running toward the bow of the ship at 2.2 m/s while the ship is moving ahead at 7.5 m/s. What is the jogger's velocity relative to the water now
In 1898, Pierre & Marie Curie isolated about 10mg of radium-226 from eight tons of uranium ore. How many radium nuclei would have decayed during this time
Review Conceptual Example 2 as an aid in solving this problem. An object is attached to the lower end of a 100-coil spring that is hanging fromthe ceiling. The spring stretches by 0.172 m. The spring is then cut into two identical springs of 50 co..
two particles of charges q1 and q2 are separated by distance d. the net electric field due to the particles is zero at
If the bar has mass of 200g, a length of 15 cm, and th magnetic field has a magnitude of 0.2T, what must be the minimum current(direction and magnitude) to lift the bar
If the circular surface of the upper end of the rod is maintained at 290 K, what is the approximate boil-off rate of liquid helium after the lower half has reached 4.20 K
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