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An 8.0-g bullet is shot into a 4.0-kg block, at rest on a frictionless horizontal surface (see the figure). The bullet remains lodged in the block. The block moves into an ideal massless spring and compresses it by 8.7 cm. The spring constant of the spring is 2400 N/m. qq.jpg What is the initial velocity of the bullet?

A force on an object is given by F(x) = ( -4.00 N/m)x + ( 2.00 N/m3)x3. What is the change in potential energy in moving from  x= 1.00  to  x=2.00 m?

Edwin Sutherland’s differential association theory states that _______.

List 4 categories of clinical manifestations of CNS dysfunction. 

All of the following family factors are associated with delinquency except _______.

A 6.00-kg ornament is held at rest by two light wires that form 30° angles with the vertical, as shown in the figure.  An external force of magnitude F acts vertically downward on the ornament.  The tension exerted by each of the two wires is denoted by T. A free-body diagram, showing the four forces that act on the box, is shown in the figure. Using the Convention, Right (+),  Left (-), Up (+), Down (-) pic.jpg Total Vertical Force is equal to  (T, W, F are magnitude of the corresponding forces, θ= 30 0 )

A system consists of three particles located as shown in below. The masses of the particles are m1 = m2 = 1.0 kg and m3 = 2.0 kg. cm pic.png The position vector of the center of mass is given by

A block rests on an inclined as shown in figure, angle of the slope is θ. The Force F is applied so that the block just starts (barely) moving upward. Answer the following Question. A1 and A2 as well as F1 and F2 are the component of Force A and Force F.  Q PIC.png If, the Applied Force is 244.3 N, the mass of the block is 5 kg, the coefficient of static friction of the surface is 0.8, what is the slope?

A potential energy function for a system in which a two-dimensional force acts is of the form U = 3X3Y-7X, find the force that acts at the point (X, Y).

Briefly explain how neurons communicate with each other in the CNS.