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Both ethene and ethyne are often called by their more common names. Give the common names, and draw the structural formula for each compound. Distinguish between saturated and unsaturated hydrocarbons.
A compound microscope has two thin lenses with focal lengths of +1.4 and +3.2 centimeter, obtain the distance separating the two lenses
A block whose weight is W= 250 nt is on a frictionless plane which is at angle q= 25 degrees. A cable between the ceiling and the block makes an angle q=55 degrees from the ceiling. See diagram with given parameters, angles, physics statements, an..
A meter stick is pivoted at its 50-cm mark but does not balance because of non uniformities in its material that cause its center of gravity to be displaced from its geometrical center. Find the mass of the meter stick and its location of its cente..
a hiker throws a stone from the upper edge of a vertical cliff. the stone's initial velocity is 25m/s directed at 40 degrees. with the face of the cliff. whats the height of the cliff?
A .060-kg tennis ball, initially moving 5.50 m/s, has a head on collision with a .090-kg ball initially moving in the same direction, determine the Speed and direction of each ball after collision
How much power does a refrigerator use if connected to a 120 volt line and is said to draw as much power as light bulb that uses 1.67 A when connected to the same voltage
A 45.0 kilogram boy, riding a 2.10 kilogram skateboard at a velocity of 5.60 m/s across a level sidewalk, jumps forward to leap over a wall. Find the skateboard's velocity relative to the sidewalk at this instant
a projectile passes point a with a velocity v upward. at some time later the projectile passes point b with a velocity
You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.137 liters per second, At what speed does the water exit the nozzle
A 2 kilogram block is released from rest on a 45 degree incline and slides a distance of 1.5 meter down the incline in 2 second. Find coefficient of kinetic friction between block and incline
A chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor. Suppose the victim falls 0.50m, the masss that moves downward is 70kg, and the collision on the floor lasts 0.082s.
A surface completely surrounds a 3.5 × 10-6 C charge. Find the electric flux through this surface when the surface is (a) a sphere with a radius of 0.59 m, (b) a sphere with a radius of 0.16 m, and (c) a cube with edges that are 0.27 m long.
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