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A plastic cylinder of length 36 cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature 16 cm. A small object is placed 11 cm from the left end. How far will the image of the object lie from the right end, if the index of refraction of the plastic is 1.5?
An airplane is flying with a velocity of 91at an angle of 26 above the horizontal. When the plane is a distance 107 directly above a dog that is standing on level ground, a suitcase drops out of luggage compartment.
Four point charges have the same magnitude of 2.53 x 10^-12 C and are fixed to the corners of a square that is 4.15 cm on a side. Three of the charges are positive and one is negative. Determine the magnitude of the net electric field that exists ..
Two parallel rods are each 0.50 m in length. They are attached at their centers to either end of the spring (spring constant = 150 N/m) that is initially neither stretched nor compressed.
Find the slit width. compute the coefficient of kinetic friction between the slide and the child.
A 1kg ball released from horizontal attatched to a 2.5 m string collides ellastically with a 2 kg block at rest. what is the speed of the block after the collision.
Just as you had done in your lab, imagine that you have a solid uniform disk (same as a uniform cylinder) with a string wound around its rim. What is the angular acceleration of the disk
A small rock moves in water and the force exerted on it by the water is given by equation . The terminal speed of the rock is measured and found to be 1.9 . The rock is projected upward at the initial speed of 6.4 . You can ignore the buoyancy for..
A 8 kg box slides d = 4.2m down the frictionless ramp, after that collides with a spring whose spring constant is 250 N/m. angle is 30 degrees.
Two parallel wires separated by 4.3 cm repel each other with a force per unit length of 1.6 multiply.gif 10-4 Nm. Find the current in the other wire
A 20.0 kg wood ball hangs from a 1.3 m long wire. The maximum tension the wire can withstand without breaking is 300 N. A 0.70 kg projectile travelling horizontally hits and embeds itself in the wood ball.
A 72 kg man in a 5-kg chair tilts back so that all weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area with the radius of 1.0 cm, and find out the pressure exerted on the floor by eac..
A coach tells his little league players that hitting a .275 batting average, within 7% percentage error, means that they had a really great season. 7-year-old Tommy ended the season hitting a .258 batting average. According to his coach, did he ha..
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