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Question: A fire helicopter carries a 680-kg bucket of water at the end of a 20.0-m long cable. Flying back from a fire at a constant speed of 40.0 m/s, the cable makes an angle of 36.0° with respect to the vertical.
Part A: Determine the force exerted by air resistance on the bucket.
I need help to find the force exerted by air resistance on the bucket.
A rigid rod of length L= 1.0 m and mass M = 2.5 kg is attached to a pivot mounted d = 0.17 m from one end. The rod can rotate in the vertical plane, and is influenced by gravity. What is the period for small oscillations of the pendulum shown? T =
In his 1865 science fiction novel From the Earth to the Moon, Jules Verne described how three astronauts are shot to the Moon by means of a huge gun. According to Verne, the aluminum capsule containing the astronauts is accelerated by ignition of ..
A hanging titanium wire with diameter 0.13 cm is initially 2.4 m long. When an 85 kg mass is hung from it, the wire stretches an amount 1.26 cm. Find the approximate value of the effective spring stiffness
On the salt flats of Bonnevile, Utah (latitude ?41?^o N) the British auto racer John Cobb in 1947 became the first man to travel at a speed of 400 mph on land. If he was headed due north at this speed, find the ratio of the magnitude of the Coriolis ..
2150 kg satellite is in a circular orbit 780 km (780 x 103 m) above the surface of the earth. What is the speed of the satellite in its orbit
A car is normally capable of an acceleration of 3m/s2. If it is towing a trailer with half as much mass as the car itself, what acceleration can it achieve?
Two radio-frequency point sources separated by 1.5 m are radiating in phase with ? = 0.30 m. How many maxima does it detect
Biological tissues are typically made up of 98% water. The density of water is 1.0×103kg/m3. Estimate the mass of a honey bee. Estimate the mass of the heart of an adult human. Estimate the mass of a cell with a diameter of 0.5m.
a charge q1 3.1 times 10-6 c is placed at the origin. charge q2 -6.8 times 10-6 c is placed on the x-axis at x -0.20
A 1500 nF capacitor with circular parallel plates 2.0 cm in diameter is accumulating charge at threat of 35.0 mC/s at some instant in time. What will be the induced magnetic field strength10.0 cm racially outward from the center of the plates?
Metal sphere A of radius 12cm carries 6 μC of charge, and the metal sphere B radius 18cm carries -4 μC of charge. find the final distribution of charge on the two spheres
when it rains water vapor in the air condenses into liquid water and energy is released.a how much energy is released
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