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A space station, in the form of a wheel121m in diameter, rotates to provide an "artificial gravity" of2.70m/s2for persons who walk around on the inner wall of the outer rim. Find the rate of the wheel's rotation in revolutions per minute that will produce this effect.
what is the maximum head-start distance the speeder can have? Measure time from the moment the police car starts.
A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite charge on the car.
Jane, looking for Tarzan, is running at top speed (5.2m/s ) and grabs a vine hanging vertically from a tall tree in the jungle. How high can she swing upward
An air mass has a temperature of 68F at 970hPa with a mixing ratio of 5 g/kg. Without any condensation or mixing, the air mass now has a temperature of 50F and a pressure of 750hPa. Find the initial and final values of:
A 73kg human sprinter can accelerate from rest to 12m/s in 3.2s . During the same interval, a 31kggreyhound can accelerate from rest to 19m/s. Compute the average power output for each
A point charge q_1 = 4.15 nC is located on the x-axis at x = 2.10 m , and a second point charge q_2 = -6.25 nC is on the y-axis at y = 1.00 m. What is the total electric flux due to these two point charges
A wheel of radius 0.6 m starts from rest and accelerates without slipping with an angular acceleration of 2.0 rad/sec2 for 10 s. How far does the wheel travel in this time
The magnetic field in a region of space is specified by its x, y, and z components which are respectively Bx = 0.138 T, By = 0.166 T, find the magnitude and direction of the force acting on the wire
A lamp (R = 145 ), an electric heater (R = 24 ), and a fan (R = 49 ) are connected in parallel across a 121 V line. What is the current in the lamp
William Tell is shooting at an apple that hangs on a tree. The apple is a horizontal distance of 20.0 m away and at a height of 4.00 m above the ground. what is the arrow's initial velocity
A dentist's drill accelerates from rest at 640rad/s2for 2.30s and then runs at constant angular velocity for 6.50s. Through how many total revolutions has the drill turned
A woman who can row a boat at 5.1 km/h in still water faces a long, straight river with a width of 6.4 km and a current of 3.5 km/h. How long (in hours) is that shortest time
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