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A cannon is fired horizontally from atop a 40.0 m tower. Thecannonball travels 145 m horizontally before it strikes the ground.With what velocity did the ball leave the muzzle.
A hypothetical diatomic molecule is composed of two identical atoms of mass 12 u. what is the rotational inertia
A parallel-plate capacitor has a capacitance of 200 pF, a plate area of 680 cm2, and a mica dielectric (? = 5.4) completely filling the space between the plates. At 64 V potential difference, calculate (b) the magnitude of the free charge on the ..
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. A friend spins the front wheel, of radius 0.335 m, and observes that drops of water fly off tangentially in an upward direction when the drops are at the same l..
A car of mass m is on a frictionless roller coaster track. How hard does the track push on the car at the top of the loop
A block of mass 9.0 kg is placed on a horizontal table and is connected to a second hanging block with mass M by a cord passing over a frictionless pulley. find the maximum mass M for which system will stay at rest
The apparent weight of passengers on a roller coaster increases by 52 as the car goes through a dip with a 35 radius of curvature. What is the car's speed at the bottom of the dip
An alien pilot of an intergalactic spaceship, on a mission to measure the sizes of galaxies, is traveling at 0.86c relative to the galaxy A. She determines the length of the short axis of the galaxy A to be 2.9 × 1017 km.
For light that originates within a liquid and strikes the liquid/air interface, What is Brewster's angle for this light
A certain fluid has a density of 1090 kg/m3 and is observed to rise to a height of 2.3 cm in a 1.0-mm-diameter tube. Calculate the surface tension of the fluid
Design a circuit that will store data from four binary sensors (presenting either a high or low value) when an enable pulse from a digital source first goes high. Assume that the enable input is normally low and the pulse is high for 1 sec.
A block of wood has a mass of 3.70 kg and a density of 632 kg/m3. What mass of lead is needed if the lead is on top of the wood
A hare and a tortoise compete in a race over a straight course 2.25 km long. The tortoise crawls at a speed of 0.180 m/s toward the finish line. For how long in time was the hare stationary
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