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The force exerted by a certain bow on an arrow decreases linearly after the arrow is released by the archer, starting at a value Fs= 275 N when the bow is fully drawn and decreasing to Fs = 0 as the arrow leaves the bowstring. The tail of the arrow moves from s= 0 to s = 0.500 m as the arrow is shot. Find the final speed of the arrow, which has a mass of 30 gm.
A long horizontal wire carries 24.0 A of current due north. What is the net magnetic field 24.0 cm due west of the wire, What is the magnitude of the net magnetic field 24.0cm due west of the wire
a jetliner is moving at a speed of 270 km/h. the plan then decelerates at 4.5 m/s2. what is the minimum runway length on which this aircraft can land
A polystyrene cup contains 0.229 L of water at 20.0 degrees C. A 0.148 kg mass of an unknown material is heated to 51.2 degrees C. The mass is carefully placed in the cup. The cup has a lid placed over it. The system at equilibrium has a temperature ..
Explain the difference between the rate law a reaction and the integrated rate law for a reaction. What relationship does each kind of rate law express?
a box of mass 11.1 rests on the flat floor of a truck. the coefficients of friction between the box and floor are 0.19
A 5 kilogram block is connected to a 10 kilogram block by a cord on a horizontal, frictionless surface. Find what is the tension in the cord connecting them
A steel rod of mass m and length L has the linear expansion coefficient X. It is standing vertically and supports a box of mass M on its top. what is the heat capacity of the rod for this process
Two resistors of resistance R are connected in parallel. The combination is connected in series to a resistor of resistance 2R. What is the resistance of this combination of resistors
Draw a suitable diagram, defining your variables and coordinate system. Express the velocity vector of the stone at t=0 in i(hat), j(hat) format. How far horizontally from the launch point is the buliding located.
Using the dynamics equation (i.e., Newton's second law and the corresponding law for the rotational motion), determine the downward acceleration and the downward velocity of the center of mass of the yo-yo after it has descended all the way to the..
The windings of a motor have a resistance of 4.0 O. The counter emf of this motor when connected to a 120-V line and running at full speed is 104 V. What is the start up current of this motor
A point charge of 6.1 µC is at the center of a cubical Gaussian surface 60 cm on an edge. What is the net electric flux through the surface
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