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 can you block websites on your computer???? if so how do you do it????? ...

 Two blocks on ramps, with friction: A marble block of mass m1 = 539.1 kg and a granite block of mass m2 = 134.4 kg are connected to each other via a rope that is directed over a pulley as shown. Both blocks are located on top of inclined planes with angles ? = 35.8 degrees and ? = 55.2 degrees, as shown. The rope glides over the pulley without friction, but the coefficients of friction of block 1 and the ramp is ?1 = 0.11, and that between block 2 and the ramp is ?2 = 0.25. (For simplicity, let us assume that the static and kinetic friction coefficients are the same in each case.) What is the acceleration of the marble block? Please note that the positive x-direction is indicated. ...

 Three blocks are arranged in a stack on a frictionless horizontal surface. The bottom block has a mass of 37.0 kg. A block of mass 18.0 kg sits on top of it and a 35.0 kg block sits on top of the middle block. A downward vertical force of 170 N is applied to the top block. What is the magnitude of the normal force exerted by the bottom block on the middle block? ...

 a small block ofmass M is realeased from rest at the top of the curved frictionless ramp. The block slides down the ramp and is moving with a speed of 3.5vnaught when it collides with a larger block of mass 1.5M at rest at the bottom of teh incline. the larger block moves to the right at a speed of 2v naught immediately after the collision express answers in terms of the given quantities and fundamental constants (A) determine height h of the ramp from which the small block isreleased (b) determine the speed of the small block after the collision (C) the larger block slides a distance D before coming to rest. Determine the value of teh coefficient of kinetic friction mew between the larger block and the surface on which it slides (d) indicate if it is a elastic or inelastic collision. so i tried it out and here are my answers if they are right let me know if not please help me (A)h=.5v^2/g (b) deltap=fdeltaT (c) mew(ma)=friction (D) inelastic ...

 A block si launched up a frictionless ramp with initial speed v0. The block travels up the ramp and continues across a level section. List the forces exerted on the block after it has been launched, as it moves up the ramp. Which forces, if any, do non-zero work on the block? Which forces, if any do zero work on the block? Write an expression for the net work done on the block from the bottom to the top of the ramp. Express your answer in terms of one or more of the following quantities: the weight mg of the block, the angle, the height H of the ramp. ...

 I wanted to go to witchvox.com to submit my poems at school, but what angers me the most its block for cults when it is not, its a legitimate religion. Witchcraft and wicca is a religion not a cult, you dont see pagans walking door to door converting people. When i went to a christian site, its not blocked. i checked jewish, but its not blocked either. but when i also checked muslim sites. it's blocked! why are they doing this. if schools want to block witchcraft, they should at least block christian sites and every other religion. Why would they block muslims sites too? Should i sue the school board, for calling my religion a cult? Should kids sue, should teachers? I'm only 17, am i old enough to get a lawyer? I want to sue the School Board, because i find it offensive. It makes me so mad just looking at this ...

 Two rectangular blocks are stacked on a table. The upper block has a mass of 4.9 kg, the lower block has a mass of 27.1 kg. The coefficient of kinetic friction between the lower block and the table is 0.3. The coefficient of static friction between the upper and the lower blocks is 0.605. A string is attached to the lower block, and an external force is applied in horizontal direction to pull on the string, as shown. What is the maximum force that one can apply without having the upper block slide off? ...

 A moving 3.70 kg block collides with a horizontal spring whose spring constant is 335 N/m. The block compresses the spring a maximum distance of 4.00 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.340. What is the work done by the spring in bringing the block to rest? How much mechanical energy is being dissipated by the force of friction while the block is being brought to rest by the spring? What is the speed of the block when it hits the spring? ...

 A block of mass 220 grams is held stationary on a level tabletop. ?A mass of 43.9 grams is attached to the block by a string over which runs horizontally fromt the block to a pulley located at the edge of the table; the mass hangs freely from the string over the pulley. ?The frictional force on the block is .044 times the normal force between block and table. ?When the block is released, what will be its acceleration? ?Sketch and label a reasonable facsimile of a scaled diagram showing the forces acting on the block. ...

 A moving 2.30 kg block collides with a horizontal spring whose spring constant is 318 N/m. The block compresses the spring a maximum distance of 10.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.340. What is the work done by the spring in bringing the block to rest? How much mechanical energy is being dissipated by the force of friction while the block is being brought to rest by the spring? What is the speed of the block when it hits the spring? ...

 A block starts at rest and slides down a fric- tionless track. The acceleration of gravity is 9.81 m/s2 . It leaves the track horizontally, striking the ground. a) At what height h1 above the ground is the block released? Answer in units of m. Givens: h2(second height)=2.6m Mass m of block = 481g After leaving the track the block lands 5.2m away from the point it leaves. What is the speed of the block when it leaves the track? Answer in units of m/s What is the speed of the block when it hits the ground? Answer in units of m/s. ...

 A block of mass m is placed in a smooth-bored spring gun at the bottom of the incline so that it compresses the spring by an amount x_c. The spring has spring constant k. The incline makes an angle (theta) with the horizontal and the coefficient of kinetic friction between the block and the incline is mu. The block is released, exits the muzzle of the gun, and slides up an incline a total distance L. Find L, the distance traveled along the incline by the block after it exits the gun. Ignore friction when the block is inside the gun. Also, assume that the uncompressed spring is just at the top of the gun (i.e., the block moves a distance x_c while inside of the gun). Use for the magnitude of acceleration due to gravity. Express the distance L in terms of x_c, k, m, g, mu, and (theta). ...

 (the rest of question continued:) back a distance 10cm from equilibrium. Now, replace the block with one double the mass and set the block into motion again by pulling the block a distance 10cm from equilibrium and releasing. How will the following new quantities relate to the quanities with the original block? (If it will be larger by a factor of 2, choose double. sqrt stands for square root.) the following quantities include: maximum acceleration, amplitude, frequency of oscillation, maximum force of the spring on block, the choices to choose from for each quantity is: quarter, half, sqrt(1/2), same, sqrt(2), double, quadruple, ...

 1. I need to block someone from my Yahoo IM. If they IM me after I block them, will they get some kind of message that their IM did not go through. 2. Also, if they email me at the email address that is associated with the IM ID will that also be blocked, or do I need to block them from the email separately--and, again, would they get some kind of message that they have been blocked from the email, or would it just never get through? It's important that I don't contact them again, but I would kinda like them to get some kind of automated message back notifying them that they are blocked. Thank you so very much for your help; I looked through FAQs and searched Help, but didn't get a clear answer. ...

 Put a square block on a swing, so that the front face is always perpendicular to the motion of the block. In a frictionless world, assuming the block/swing system has been set in motion and is swinging, does the block stop? It seems as though it should, as it "hits" the air. But if it does stop, what do we "call" the force that stops it? It isn't friction, since in this situation there isn't friction. "Drag"? Is it called something else? And if we slant the surface of the block in any way so that the air can "glance" off of it in a frictionless way, does it now eventually stop? ...

 I have blocked port 5190 which blocks the old AIM, but not Triton. I even blocked port 80, which of course blocks all internet traffic, but still not Triton. What port do I need to block to shut down Triton? ...

 My teacher has listed this question on my work assignment: "Will you be using Block Style or Alternating Block Style to write your comparison essay?" ... What is Block Stye and Alternating Block Style? ...

 A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 34 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 155 m), the block swings toward the outside of the curve. Then the string makes an angle with the vertical. Find the angle. How does the force compare with the block? is the radius if the circle proportional to the radius of the blocks circle? ...

 Two Blocks are on top of a frictionless, level table and are attached to each other by a massless spring. The blocks are pushed together slightly so that the spring is compressed, while at the sam time they are given identical initial velicities to the left. The blocks are then released simultaneously, so that the spring is allowed to expand. The mass of block A is twice that of block B a-Immediately after release, how does the net force on block A compare to the net force on block B? Discuss both magnitude and direction. b-Is there some instant after relase when the velocity of block A becomes the same as it was a the time of relase? If so does the velocity of block B also equal the velocity of block A at this instant? Explain ...