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1. When a rock thrown straight upwards gets to the exact top of its path, its
A) Velocity is about 10 m/s and its acceleration is zero.
B) Velocity is zero and its acceleration is zero.
C) Velocity is zero and its acceleration is about 10 meters per second per second.
D) Velocity is about 10 m/s and its acceleration is about 10 meters per second per second.
E) None of these
2. While a car travels around a circular track at a constant speed its
A) Inertia is zero.
B) Acceleration is zero.
C) Velocity is zero.
D) None of the above
Three sticks are arranged to forma right triangle. if the lenghts of the sticks are .47m, .62m, and .78m, what are the angles of the triangle?
Two sinusoidal waves traveling in opposite directions interfere to produce a standing wave with the wave function y = (1.00) sin(0.800x) cos(300t), Determine the wavelength of the interfering waves
A toy train is pushed forward and released at xi = 1.60 m with a speed of 2.60 m/s. It rolls at a steady speed for 1.30 s, and then one wheel begins to stick. The train comes to a stop 6m from its starting point. What is the train's acceleration a..
A loop of diameter 21 cm is placed in a uniform electric field of magnitude 7.4 102 N/C. What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object and the slope surface is 0.15. What is the object's speed at the bottom of the slope
1 potential difference an electron is accelerated through a potential difference of 2.2 kv and directed into a region
Blood pressure in Argentinosaurus. If this long-necked, gigantic sauropod had a head height of 20.2 m and a heart height of 9.00 m, What was the blood pressure at the feet
A pair of closely spaced square conducting plates measure 8.0cm on a side. What is the charge on the plates
Water at a gauge pressure of 3.0 atm at street level flows into an office building at the speed of 0.40 m/s by a pipe 5.0 cm in diameter. The pipe tapers down to 2.20 cm in diameter by the top floor, 15 m above, where the faucet has been left open. E..
A 16.0-m uniform ladder weighing 490 N rests against a frictionless wall. Find the horizontal and vertical forces the ground exerts on the base of the ladder
Calculate the least velocity of projection required to give amissile a horizontal displacement of 500m if the angle ofprojection is 24 degrees
a banked circular highway curve is designed for traffic moving at 56 kmh. the radius of the curve is 201 m. traffic is
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