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A block of ice slides 500 m down along a frictionless slope (slopes 20 degrees below horizontal). The slope flattens out at the bottom and there is a very large ideal spring sitting on level ground just beyond the end of the slope.
a.) what is blocks speed at end of slope?
b.) If the block hits the spring and compresses it, what is the maximum compression (i.e change in length) of the spring due to the block hitting it?
In a 280-turn automobile alternator, the magnetic flux in each turn is ?B = 2.50 multiply.gif 10-4 cos ?t, where ?B is in webers, ? is the angular speed of the alternator, Determine the maximum emf in the alternator
A child of mass 24 kg sits 2.10m to the left of the center of a seesaw. The mass of the seesaw is 35 kg. How far to the right of the central pivot must a second child of mass 40 kg sit if the seesaw is to be perfectly balanced.
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
Illustrate what is the difference between a departmental accounting system and a responsibility accounting system? Are the reports of departmental net income and the departmental contribution to overhead useful in assessing a department manager's ..
What plate separation is required for a parallel plate.
A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer, What is the mass of the unknown element
Two 2.30 cm x 2.30 cm plates that form a parallel-plate capacitor are charged to +- 0.714nC. Part A What is the potential difference across the capacitor if the spacing between the plates is 1.00mm? Part B What is the potential difference across t..
What angle does water surface make with the horizontal
The flywheel of an engine has a moment of inertia 2.2 {rm kg} cdot {rm m} ^{2} about its rotation axis. What is its final kinetic energy.
Find the eight ball's speed after the colision. Parallel rays of green mercury light with a wavelength of 546 nm pass through a slit with a width of 0.437 mm. What is distance from the central maximum to the first minimum on a screen 1.75 mm away f..
A platinum resistance thermometer has resistances of 190.0 when placed in a 0°C ice bath and 234.8 when immersed in a crucible containing a melting substance. What is the melting point of this substance
A parallel plate capacitor has plates of area 2.0*10^3 and plate separation 1.0*10^4m. find the capacitance of this system if air fills the volume between the plates.
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