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Q1. A woman rides a carnival Ferris wheel at radius 16.0 m, completing 4.40 turns about its horizontal axis every minute. What are (a) period of the motion, and the magnitude of her centripetal acceleration at (b) highest point and (c) lowest point?
Q2. A sailboat is travelling east at 4.0 m/s. A sudden gust of wind gives the boat an acceleration a = (1.35 m/s2 30° north of east). What is the boat's speed 6.0 seconds later while the gust subsides?
Unpolarized light travels throughout 2 linear polarizers. What (minimum) angle should the second polarizer be relative to the first polarizer (the difference between q1 and q2) so that the final intensity of light is 1/3 original value.
Two identical carts travel at 1m/s in opposite directions on a common horizontal surface. They collide head-on and are reported to rebound, each with the speed of 2m/s.
How many joules of kinetic energy does a 750-{rm kg} automobile travelling at the typical highway speed of 65 {rm{ mi/h}} have.
A helicopter is ascending vertically with the speed of 5.79. At a height of 127 above the Earth, a package is dropped from a window. How long take the package to hit the ground.
A galvanometer with a coil resistance of 11.0 and the full-scale current of 0.150 mA is used with a shunt resistor to make an ammeter. The ammeter registers the maximum current of 4.00 mA. Find the equivalent resistance of the ammeter.
A ball is thrown directly up from the ground with speed vsub0. At the same time, a second ball is dropped from rest from a height H, straight above the point where the first ball was thrown upward. There is no air resistance. A) Find out the time at ..
If water at 15°C is flowing through a 3cm diameter pipe with a velocity of 50 cm-1, calculate the Reynolds number. Is the flow turbulent or laminar?
A 1.00 kg glider on a horizontal air track is pulled by a string at an angle θ. The taut string runs over a pulley and is attached to a hanging object of mass 0.500 kg .
A small grinding wheel has a moment of inertia of 4.0×10-5 kg m^2. What net torque must be applied to the wheel for its angular acceleration to be 160 rad s^2.
A spring of force constant k=2.5*10^2 N/m is suspended form a rigid support. An object o mass 1.00 kg is attached to the uns How far below the starting point is equilibrium position for the object.
Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its k..
What is ratio of the applied force
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