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BAED-PHYC2121 General Physics 1
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A strobe photograph shows equally spaced images of a car moving along a straight road. If the time intervals between images is constant, which of the following cannot be positive?
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1.6 Algebra and Simultaneous Equations
Note the expression: y = x2. Which statement is most consistent with this expression?0%
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On planet Z, the standard unit of length is the foose. Ann the Astronaut is 5.80 feet tall on earth. She lands on planet Z and is measured to be 86 foosi tall. Her partner Rachael is 89 foosi tall. How tall is Rachael on Earth?
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1.4 Physical Quantities and Units of Measure
Which of the following conversion factors is not exact?0%
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A taxicab moves five blocks due north, five blocks due east, and another three blocks due north. Assume all blocks are of equal size. How far is the taxi from its starting point?
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John throws a rock down with speed 15 m/s from the top of a 31-m tower. If g = 9.8 m/s2 and air resistance is negligible, what is the rock's speed just as it hits the ground?
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4.1 Statics
A 500-N tightrope walker stands at the center of the rope. If the rope can withstand a tension of 1400 N without breaking, what is the minimum angle the rope can make with the horizontal?0%
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A 18-kg mass is placed on a 26° incline and friction keeps it from sliding. The coefficient of static friction in this case is 0.576 and the coefficient of sliding friction is 0.529. The mass is given a shove causing it to slide down the incline. Taking down the incline as positive, what is the acceleration of the mass while it is sliding?
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4.2 Projectile Motion
A ball is rolled horizontally off a table with an initial speed of 0.18 m/s. A stopwatch measures the ball's trajectory time from table to the floor to be 0.30 s. What is the height of the table? Note: g = 9.8 m/s2 and air resistance is negligible.0%
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Find the tension in an elevator cable if the 1,500-kg elevator is descending with an acceleration of 2.8 m/s2, downward.
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