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A rod moving in the positive x direction is measured by a stationary observer to have a length of 10.0meters and to be oriented at an angle of 70.0 degrees with respect to the positive x axis. A second observer moving adjacent to the rod and parallel to the rod%u2019s motion, in the positive x direction, measures the rod to be oriented at 5.00 degrees with respect to the positive x axis.
a. Find the speed of the second observer as measured by the stationary observer.
The brakes of a truck cause it to slow down by applying a retarding force of 4520 N to the truck over a distance of 1150 m
An ice cube slides from rest without friction down a long inclined ramp that makes an angle of 20.0o with the horizontal. What is the speed of the cube
A major artery has a cross sectional area of 1.07 cm^2. What is the average speed of blood flowing through the smaller arteries
The electron in a hydrogen atom is in the first excited state, What is the quantum number n of the state into which the electron moves
air is contained in a piston/cylinder at 350K, 300kPa and occupies 0.1m^3. determine the change of availability of the system
A wire has a mass per unit length of 0.500 g/cm. what is the magnitude and direction of the minimum magnetic field
A 1kg ball with a speed of 3 m/s collides head on, elastically, with a 2 kg ball moving at 1 m/s. What will be the velocity of each ball after the collision
A positive charge of 0.800? C is located in a uniform field of 1.20×105 N/C. A negative charge of -0.400? C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge du..
You are holding a compass 3.50 m from a long straight electrical supply wire that is carrying a direct current perpendicularly to the local direction of the Earth's magnetic field. find the magnitude of the current carried by the wire
A basketball player grabbing a rebound jumps 73.3 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 13.1 cm of this jump and (b) in the bottom 13.1 cm? Do your results explain why such players seem to han..
What is the magnification of an astronomical telescope whose objective lens has a focal length of 77 cm, What is the overall length of the telescope when adjusted for a relaxed eye
You do 116 J of work while pulling your sister back on a swing, whose chain is 5.0m long, until the swing makes an angle of 32.0° with the vertical
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