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A ball swings in a vertical circle at the end of a rope 1.40 m long. When the ball is 35.5° past the lowest point on its way up, its total acceleration is (?22.5 + 20.2 ) m/s2. For that instant, do the following.
(a) Sketch a vector diagram showing the components of its acceleration. (Do this on paper. Your instructor may ask you to turn in the sketch.)
(b) Determine the magnitude of its radial acceleration.
m/s2
(c) Determine the speed of the ball.
m/s
(d) Determine the velocity of the ball.
magnitude m/s
direction ° above the horizontal
A 16.0L tank contains 0.430kg of helium at 16.0?C. The molar mass of helium is 4.00g/mol, How many moles of helium are in the tank
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Suppose your body was able to use the chemical energy in gasoline, How far could you pedal a bicycle? How far could you pedal a bicycle at 15km/hr on the energy in 1.8 gal of gas? (1 gal of gas has a mass of 3.2 kg)
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While a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude F=ax+bx^2, where a and b are constants. The work completed in stretching this rubber band from x=0 to x=L is what.
A particular horizontal turntable can be modeled as a uniform disk with a mass of 230 g and a radius of 22.0 cm that rotates without friction about a vertical axis passing through its center
question1all through a balloon ascension wearing an oxygen mask you calculate the weight of a calibrated 5.50-kg mass
A 75 kg ladder that is 3.0 m in length is placed against a wall at an angle theta. The center of gravity of the ladder is at a point 1.2 m from the base of the ladder. find the static frictional force between the floor and the ladder
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