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A jet flying at 137 m/s banks to make a horizontal circularturn. The mass of the jet is2.29 × 105 kg and radius of the turn is 3810 m. find the magnitude of the necessary lifting force.
A 57.0 kg skateboarder starts out with a speed of 1.70 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. Calculate the change (?PE = PEf - PE0) in the gravitational potential energy
A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway, How much time is needed for the plane to clear the intersection
A 1.80x10^2 kg piano is being lifted at a steady speed from ground level straight up to an apartment 18.00 m above the ground. The crane that is doing the lifting produces a steady power of 4x10^2 W. How much time does it take to lift piano.
an uncharged 1.0-muf capacitor is connected in series with a 23-komega resistor an ideal 7.0-v battery and an open
A certain light source is found to emit radiation whose peak valuehas a frequency of 3.00 x1013 Hz. Find the temperature of the source assuming that it is a blackbody radiator
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. what is the mass of this canister
An astronaut (Speedo) travels to a distant planet and back with speed 0.7c. He is 30 yrs old when he departs and 50 years old when he returns. how old is Goslo when Speedo returns
The flywheel of an old steam engine is a solid homogeneous metal disk of mass M = 129 kg and radius R = 85.3 cm. How long does it take for the flywheel to come to rest
q1. an 920 n sled is pulled a distance of 197 m. the task requires 1.20 104 j of work and is completed through pulling
A 500-turn solenoid, 25 cm long, has a diameter of 2.5 cm. what will be the induced emf in the short coil during this time
two point charges are placed on the axis as follows charge 3.80 is located at 0.185 and charge 4.75 is at -0.285 .
When point charges q1=+8.4uC and q2 = +5.6uC are brought near each other , each experience a repulsive force of magnitude 0.66 N. Determine the distance between the charges.
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