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An airplane flies in a tight vertical circle. To make sure the flyer does not black out at the bottom of the circle, acceleration must not exceed 4.0 gram if the speed of the plane is 50 m/s at the circle. Determine minimum radius of circle thus that 4.0 gram limit is not exceeded.
Jane, looking for Tarzan, is running at topspeed (6.7 m/s) and grabs a vine hanging vertically from a talltree in the jungle. How high can she swing upward
A particle travels horizontally between two parallel walls separated by 18.4 m. It moves toward the opposing wall at a constant rate of 7.7 m/s. What will be its speed when it hits the opposing wall
A straight wire carrying a 2.7 A current is placed in a uniform magnetic field of magnitude 0.25 T directed perpendicular to the wire. Find the magnitude of the magnetic force on a section of the wire having a length of 10 cm
If the football has the mass of .420 kg and the time of contact with the ball is .014 s, what is the force exerted by the ball on a kicker's foot.
An Italian chef, who is very scientific in her approach to cooking, measures the specific heat of a porcini mushroom by placing it in a calorimeter filled with 0.678 kg of olive oil at 13.2°C. What is the specific heat of the mushroom
A particular heat engine has a useful power output of 4.40 kW and an efficiency of 30.0%. The engine expels 7200 J of exhaust energy in each cycle , Find the time interval for each cycle
A world class sprinter accelerates to his maximum speed in 3.80 s. He then maintains this speed for the remainder of a 100 m race, finishing with a total time of 10.30 s. What is the runner's average acceleration throughout the first 3.80 s.
A 0.400kg glider is moving to the right on a frictionless,horizontal air track with a speed of 0.750m/s when it makes ahead-on collision with a stationary 0.150kg glider. Find the final kinetic energy of second glider
An object is 13 cm from the surface of a reflective spherical Christmas-tree ornament8.27 cm in diameter. What is the position of the image? What is the magnification of the image?
An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Utilize newton's laws to determine the electron's velocity after it moves .10 cm.
An emf of 23.0 mV is induced in a505 turn coil when the current ischanging at a rate of 7.0 A/s. What is the magnetic flux through each turn of the coil
Two 0.70g spheres are charged equally and placed 2.4 cm apart. what is the charge on each sphere
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