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car A is moving east at a speed of 40mps relative to the ground. car B is moving west at 50mph relative to the ground. what is the relative velocity (speed and direction) of car B as seen by an observer in car A? Of car A as seen by an observer in car B?
the electron in a hydrogen atom is infintely distant at zero potential energy and is at an average radius of a0=.0529 nm when bound by 13.6 eV. find the nearest principal quantum number in this state
When a train's velocity is 12.0 m/s eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0 degree to the vertical on the windows of the train. What is the horizontal component of a drop's veloci..
A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 159-kg laser sensor which measures the thickness of the ice, find the tension in the cable towing the sensor
What is tension in each string
A flywheel with a radius of 0.300m starts from rest and accelerates with a constant angular acceleration of 0.600rad/s2. Compute the magnitude of the tangential acceleration
A 4.00 x 107 kg battleship originally at rest fires a 1200 kg artillery shell horizontally with a velocity of +400 m/s. Calculate the increase in internal kinetic energy
A platform moves up and down in SHM, with amplitude 0.050 m. Resting on top of the platform is a block of wood. What is the shortest period of motion for the platform so that the block will remain in constant contact with it?
car is driving directly north on the freeway at a speed of 112 km/h, What is the velocity of the truck relative to the car
A high-voltage transmission line with a resistance of 0.265 %u2126/km carries a current of 1.25 kA. What fraction of the transmitted power does this loss represent
If you place the box on a dolly of mass 5.3 {rm kg} and with coefficient of rolling friction 1.3×10−2, illustrate what horizontal acceleration would that 171 {rm N} force provide?
ject located at the origin and having mass M explodes into three pieces having masses M/6, M/3, and M/2. What are the velocity components of the third piece
calculate the maximum range when radar operates at 10ghz and has peak power10 mwattsn ratio10dbantenna cross
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