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A horizontal force of 20 N pulls a block of mass 3.7 kg across a level floor. The coefficient of kinetic friction between the block and the floor is ?K = 0.25. If the block begins with a speed of 3.0 m/s and is pulled for a distance of 16 m, what is the final speed of the block? Please show work.
Photons of wavelength 490 nm are incident on a metal. What is the work function of the metal
A 2.9 kg block is released from rest on a 45° inclined ramp. The block will lose energy to friction at a constant rate of 4 J/m as it slides down the ramp
Two forces are applied to a car in an effort to accelerate it. The first force, F1 = 328 N, is applied at an angle α = 35° to the forward dashed line. The second force, F2 = 544 N, is applied at an angle β = 8° to the forward dashed line. (a) What is..
The spring of the pressure gauge has a force constant of1000 n/m and the piston has a diameter of 2.00 cm as the gauge is lowered into water, what change in depth causes piston to move in by 0.50 cm.
determine the generating function for the transformation q=Q+Pt, p=P. Show that the hamiltonian H(p,q)=p^/2 + V(q) transforms to H'(P,Q)=V(Q+Pt)
Consider two dimensional simple triangular lattice for free electron metal with two electrons per atom. Assume the lattice constant is a, find the areas electron and hole pockets that are formed in the second and first Brillouin zones respectively. F..
The power output of a circuit is given by: P = i^2R = V^2/R = iV, Calculate the power output of each resistive element when a potential of 12 volts is applied
A 0.70 kg ball is moving horizontally with a speed of 5.1 m/s when it strikes a vertical wall. What is the magnitude of the impulse of the ball
A sample of wood from an archaeological excavation is dated by using a mass spectrometer to measure the fraction of 14C atoms. What is the wood's age
To transmit only portions of an input wave lying on one side of an amplitude boundary, you would use a.
An electric field of 490000 N/C points due west at the certain spot. What is the magnitude of the force that acts on a charge of -8.3 C at this spot.
Find out the final speeds of the two objects. What is the angle at which the object with mass 3m is scattered?
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