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A 50 Newton horizontal force pushes a 10 kilogram mass sitting on a horizontal surface towards the right. Additionally, the horizontal surface exerts a 25 Newton frictional force on the mass. What is the acceleration of the mass and its direction?
Please show work.
X-rays with a wavelength of 7.02 x 10^-12 m strike a stationary electron and the reflected photon is scattered 75 degrees relative to the incident photon. What is the wavelength of the scattered photon?
A child of mass 47 kg jumps onto the edge of a merry-go-round of mass 155 kg and radius 1.7 m that is initially at rest, What is the angular velocity of the merry-go-round plus child after the child jumps onto the merry-go-round
a proton is fired from far away toward the nucleus of a mercury atom. mercury is element no.80. if the initial velocity
What is the moment of inertia of the object about an axis at the center of mass of the object, What is the moment of inertia of the object about an axis at the left end of the rod
A record is rotating at 33 rpm. The motor is turned off andthe record comes to a stop at constant deceleration in 2.5 min.Determine the number of revolutions the record makes
air passes steadily through a device from 20 psia and 80degf to 40 psia. during the process a work input of 24.2 btulb
consider a heavy crate resting on the bed of a flatbed truck. when the truck accelerates the crate also accelerates and
Two small plastic spheres are given positive electrical charges. When they are 18.0cm apart, the repulsive force between them has magnitude 0.300 N. find the charge on each sphere if the two charges are equal
From another measurement, you have found that velocity of the jumper's center of mass has only a y component of v2=2.5 m/s as the jumper's feet leave the floor.
A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. Find the number of turns in the secondary
What are the magnitude Pg of George's momentum, Ps the magnitude of Sandra's momentum, and !! the magnitude of their combined final momentum.
You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.149 L per second, At what speed does the water exit the nozzle
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